MP-BGP allows you to consolidate a variety of protocol types under a single BGP configuration. These protocol types are called address families and include (as just a few examples):
* Unicast IPv4
* Multicast IPv4
* Unicast IPv6
* Multicast IPv6
Note: MP-BGP supports several additional address families, largely used to support virtualization
technologies, such as Virtual Private LAN Service (VPLS) and Layer 2 VPN (L2VPN).
MP-BGP contains several new elements and features not found in BGP-4, including:
* Address Family Identifier (AFI): Specifies the type of address being used by an
Address Family.
* Subsequent Address Family Identifier (SAFI): Provides additional address family
information for some address families.
* Multiprotocol Reachable Network Layer Reachability Information (MP_REACH_
NLRI): An attribute that transports a collection of reachable networks, along with
next-hop information.
* Multiprotocol Unreachable Network Layer Reachability Information (MP_
UNREACH_NLRI): An attribute that transports a collection of unreachable networks
(used to indicate that specific previously reachable networks are no longer
reachable).
* BGP Capabilities Advertisement: Used by a router to tell a neighboring router its
BGP capabilities—used during BGP session negotiation.
Note that the multiprotocol extensions making up MP-BGP are backward compatible with traditional BGP-4. As a result, a traditional BGP-4 router can form a neighborship with an MP-BGP router, and simply ignore any received BGP messages containing unrecognized extensions.
* Unicast IPv4
* Multicast IPv4
* Unicast IPv6
* Multicast IPv6
Note: MP-BGP supports several additional address families, largely used to support virtualization
technologies, such as Virtual Private LAN Service (VPLS) and Layer 2 VPN (L2VPN).
MP-BGP contains several new elements and features not found in BGP-4, including:
* Address Family Identifier (AFI): Specifies the type of address being used by an
Address Family.
* Subsequent Address Family Identifier (SAFI): Provides additional address family
information for some address families.
* Multiprotocol Reachable Network Layer Reachability Information (MP_REACH_
NLRI): An attribute that transports a collection of reachable networks, along with
next-hop information.
* Multiprotocol Unreachable Network Layer Reachability Information (MP_
UNREACH_NLRI): An attribute that transports a collection of unreachable networks
(used to indicate that specific previously reachable networks are no longer
reachable).
* BGP Capabilities Advertisement: Used by a router to tell a neighboring router its
BGP capabilities—used during BGP session negotiation.
Note that the multiprotocol extensions making up MP-BGP are backward compatible with traditional BGP-4. As a result, a traditional BGP-4 router can form a neighborship with an MP-BGP router, and simply ignore any received BGP messages containing unrecognized extensions.
R1#conf t
Enter
configuration commands, one per line.
End with CNTL/Z.
R1(config)#interface
loop 0
R1(config-if)#
*Jul 21
07:49:32.203: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0,
changed state to up
R1(config-if)#ip
address 10.0.0.1 255.255.255.0
R1(config-if)#ipv6
address 2001:db8:beef:11::1/64
R1(config-if)#
R1(config-if)#interface
loop 1
R1(config-if)#
*Jul 21
07:51:03.207: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1,
changed state to up
R1(config-if)#ip
address 10.1.0.1 255.255.0.0
R1(config-if)#ipv6
address 2001:db8:beef:1::1/64
R1(config-if)#
R1(config-if)#interface
serial 2/0
R1(config-if)#ip
address 192.168.1.1 255.255.255.252
R1(config-if)#ipv6
address 2001:db8:feed:1::1/64
R1(config-if)#no
shut
R1(config-if)#
*Jul 21
07:52:34.911: %LINK-3-UPDOWN: Interface Serial2/0, changed state to up
R1(config-if)#
*Jul 21
07:52:35.923: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0,
changed state to up
R1(config-if)#end
R1#
R2#conf t
Enter
configuration commands, one per line.
End with CNTL/Z.
R2(config)#interface
loop 0
R2(config-if)#
*Jul 21
07:55:01.503: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0,
changed state to up
R2(config-if)#ip
address 172.17.2.1 255.255.255.0
R2(config-if)#ipv6
address 2001:db8:cafe:22::1/64
R2(config-if)#
R2(config-if)#interface
loop 1
R2(config-if)#
*Jul 21
07:55:51.731: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1,
changed state to up
R2(config-if)#ip
address 172.16.2.1 255.255.255.0
R2(config-if)#ipv6
address 2001:db8:cafe:2::1/64
R2(config-if)#
R2(config-if)#interface
serial 2/0
R2(config-if)#ip
address 192.168.1.2 255.255.255.252
R2(config-if)#ipv6
address 2001:db8:feed:1::2/64
R2(config-if)#no
shut
R2(config-if)#
*Jul 21
07:57:19.399: %LINK-3-UPDOWN: Interface Serial2/0, changed state to up
R2(config-if)#
*Jul 21
07:57:20.411: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0,
changed state to up
R2(config-if)#do
ping 192.168.1.1
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 8/29/44 ms
R2(config-if)#
R2(config-if)#do
ping 2001:db8:feed:1::1
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 2001:DB8:FEED:1::1, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 12/15/16 ms
R2(config-if)#
R2(config-if)#interface
serial 2/1
R2(config-if)#ip
address 172.16.1.1 255.255.255.252
R2(config-if)#ipv6
address 2001:db8:cafe:1::1/64
R2(config-if)#no
shut
R2(config-if)#
*Jul 21
07:59:37.451: %LINK-3-UPDOWN: Interface Serial2/1, changed state to up
R2(config-if)#
*Jul 21
07:59:38.463: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/1,
changed state to up
R2(config-if)#end
R2#
R3#conf t
Enter
configuration commands, one per line.
End with CNTL/Z.
R3(config)#interface
loop 0
R3(config-if)#
*Jul 21
08:00:05.927: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0,
changed state to up
R3(config-if)#ip
address 172.17.3.1 255.255.255.0
R3(config-if)#ipv6
address 2001:db8:cafe:33::1/64
R3(config-if)#
R3(config-if)#interface
loop 1
R3(config-if)#
*Jul 21
08:01:03.951: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1,
changed state to up
R3(config-if)#ip
address 172.16.3.1 255.255.255.0
R3(config-if)#ipv6
address 2001:db8:cafe:3::1/64
R3(config-if)#
R3(config-if)#interface
serial 2/1
R3(config-if)#ip
address 172.16.1.2 255.255.255.252
R3(config-if)#ipv6
address 2001:db8:cafe:1::2/64
R3(config-if)#no
shut
R3(config-if)#
*Jul 21
08:02:27.059: %LINK-3-UPDOWN: Interface Serial2/1, changed state to up
R3(config-if)#
*Jul 21
08:02:28.071: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/1,
changed state to up
R3(config-if)#do
ping 172.16.1.1
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 8/17/24 ms
R3(config-if)#
R3(config-if)#do
ping 2001:db8:cafe:1::1
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 2001:DB8:CAFE:1::1, timeout is 2 seconds:
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 16/18/20 ms
R3(config-if)#end
R2#conf t // CONFIGURE EIGRP FOR IPv4 AND IPv6 ON CUSTOMER NETWORK
Enter
configuration commands, one per line.
End with CNTL/Z.
R2(config)#ipv6
unicast-routing
R2(config)#router
eigrp 1
R2(config-router)#eigrp
router-id 2.2.2.2
R2(config-router)#network
172.16.0.0
R2(config-router)#network
172.17.0.0
R2(config-router)#
R2(config-router)#ipv6
router eigrp 2
R2(config-rtr)#eigrp
router-id 2.2.2.2
R2(config-rtr)#
R2(config-rtr)#interface
loop 0
R2(config-if)#ipv6
eigrp 2
R2(config-if)#
R2(config-if)#interface
loop 1
R2(config-if)#ipv6
eigrp 2
R2(config-if)#
R2(config-if)#interface
serial 2/1
R2(config-if)#ipv6
eigrp 2
R2(config-if)#end
R2#
*Jul 21 08:07:36.683:
%DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.1.2 (Serial2/1) is up: new
adjacency
R2#
*Jul 21 08:10:00.775:
%DUAL-5-NBRCHANGE: EIGRP-IPv6 2: Neighbor FE80::C803:1CFF:FE48:0 (Serial2/1) is
up: new adjacency
R3#conf t
Enter
configuration commands, one per line.
End with CNTL/Z.
R3(config)#ipv6
unicast
R3(config)#router
eigrp 1
R3(config-router)#eigrp
router-id 3.3.3.3
R3(config-router)#network
172.16.0.0
*Jul 21 08:07:36.631:
%DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.1.1 (Serial2/1) is up: new
adjacency
R3(config-router)#network
172.17.0.0
R3(config-router)#
R3(config-router)#ipv6
router eigrp 2
R3(config-rtr)#interface
loop 0
R3(config-if)#ipv6
eigrp 2
R3(config-if)#
R3(config-if)#interface
loop 1
R3(config-if)#ipv6
eigrp 2
R3(config-if)#
R3(config-if)#interface
serial 2/1
R3(config-if)#ipv6
eigrp 2
R3(config-if)#
*Jul 21 08:10:00.703:
%DUAL-5-NBRCHANGE: EIGRP-IPv6 2: Neighbor FE80::C802:23FF:FE24:0 (Serial2/1) is
up: new adjacency
R3(config-if)#end
R3#
R1#conf t // CONFIGURE MP-BGP ON ISP (EBGP WITH R2)
Enter
configuration commands, one per line.
End with CNTL/Z.
R1(config)#ipv6
unicast
R1(config)#router
bgp 65100
R1(config-router)#bgp
router-id 1.1.1.1
R1(config-router)#neighbor
192.168.1.2 remote-as 65000
R1(config-router)#
R1(config-router)#?
Router
configuration commands:
address-family Enter Address Family command mode
aggregate-address Configure BGP aggregate entries
auto-summary Enable automatic network number
summarization
bgp BGP specific commands
default Set a command to its defaults
default-information Control distribution of default information
default-metric Set metric of redistributed routes
distance Define an administrative distance
distribute-list Filter networks in routing updates
exit Exit from routing protocol
configuration mode
help Description of the
interactive help system
maximum-paths Forward packets over multiple paths
neighbor Specify a neighbor router
network Specify a network to announce
via BGP
no Negate a command or set its
defaults
redistribute Redistribute information from another
routing protocol
route-server-context Enter route server context command mode
scope Enter scope command mode
snmp Modify snmp parameters
synchronization Perform IGP synchronization
table-map Map external entry attributes into
routing table
template Enter template command mode
timers Adjust routing timers
R1(config-router)#address-family
?
ipv4
Address family
ipv6
Address family
l2vpn
Address family
nsap
Address family
rtfilter
Address family
vpnv4
Address family
vpnv6
Address family
R1(config-router)#address-family
ipv4 ?
mdt
Address Family modifier
multicast
Address Family modifier
mvpn
Address Family modifier
unicast
Address Family modifier
vrf
Specify parameters for a VPN Routing/Forwarding instance
<cr>
R1(config-router)#address-family
ipv4 unicast // CONFIGURE IPv4 ADDRESS FAMILY (AF)
R1(config-router-af)#?
Router
Address Family configuration commands:
aggregate-address Configure BGP aggregate entries
auto-summary Enable automatic network number
summarization
bgp BGP specific commands
default Set a command to its defaults
default-information Control distribution of default information
default-metric Set metric of redistributed routes
distance Define an administrative distance
distribute-list Filter networks in routing updates
exit-address-family Exit from Address Family configuration mode
help Description of the interactive
help system
maximum-paths Forward packets over multiple paths
neighbor Specify a neighbor router
network Specify a network to announce via
BGP
no Negate a command or set its
defaults
redistribute Redistribute information from another
routing protocol
snmp Modify snmp parameters
synchronization Perform IGP synchronization
table-map Map external entry attributes into
routing table
R1(config-router-af)#network
10.1.0.0 mask 255.255.0.0
R1(config-router-af)#neighbor
192.168.1.2 activate
R1(config-router-af)#exit-address-family
R1(config-router)#address-family
ipv6 unicast // CONFIGURE IPv6 AF
R1(config-router-af)#network
2001:db8:beef:1::/64
R1(config-router-af)#neighbor
192.168.1.2 activate
R1(config-router-af)#neighbor
192.168.1.2 route-map HOPv6 out // CONFIGURE A ROUTE MAP FOR IPv6 OUTBOUND EBGP UPDATES TO R2
R1(config-router-af)#exit
R1(config-router)#route-map
HOPv6 permit 10
R1(config-route-map)#set
?
as-path Prepend string for a BGP AS-path
attribute
automatic-tag Automatically compute TAG value
clns OSI summary address
comm-list set BGP community list (for deletion)
community BGP community attribute
dampening Set BGP route flap dampening
parameters
default Set default information
extcomm-list Set BGP/VPN extended community list (for
deletion)
extcommunity BGP extended community attribute
global Set to global routing table
interface Output interface
ip IP specific information
ipv6 IPv6 specific information
level Where to import route
local-preference BGP local preference path attribute
metric Metric value for destination
routing protocol
metric-type Type of metric for destination routing
protocol
mpls-label Set MPLS label for prefix
origin BGP origin code
tag Tag value for destination
routing protocol
traffic-index BGP traffic classification number for
accounting
vrf Define VRF name
weight BGP weight for routing table
R1(config-route-map)#set
ipv6 ?
address
IPv6 address
default
Set default information
next-hop
IPv6 Next hop
precedence
IPv6 Precedence
R1(config-route-map)#set
ipv6 next-hop ?
X:X:X:X::X
Next hop address
encapsulate
Encapsulation profile for VPN nexthop
peer-address
Use peer address (for BGP only)
R1(config-route-map)#set ipv6
next-hop 2001:db8:feed:1::1 // NOTICE IPv6 NEX HOP IS R1 SERIAL 2/0
R1(config-route-map)#end
R1#
*Jul 21
08:19:10.159: %BGP_SESSION-5-ADJCHANGE: neighbor 192.168.1.2 IPv6 Unicast
topology base removed from session
Capability changed
*Jul 21
08:19:10.163: %BGP-5-ADJCHANGE: neighbor 192.168.1.2 Up
R1#
*Jul 21
08:22:44.635: %BGP-5-ADJCHANGE: neighbor 192.168.1.2 Down Peer closed the
session
*Jul 21
08:22:44.639: %BGP_SESSION-5-ADJCHANGE: neighbor 192.168.1.2 IPv4 Unicast
topology base removed from session Peer
closed the session
*Jul 21
08:22:45.447: %BGP-5-ADJCHANGE: neighbor 192.168.1.2 Up
R1#
R2#conf t // CONFIGURE MP-BGP ON R2 (EBGP WITH R1 AND IBGP WITH R3)
Enter
configuration commands, one per line.
End with CNTL/Z.
R2(config)#router
bgp 65000
R2(config-router)#bgp
router-id 2.2.2.2
R2(config-router)#neighbor
192.168.1.1 remote-as 65100
R2(config-router)#
*Jul 21 08:19:10.315:
%BGP-5-ADJCHANGE: neighbor 192.168.1.1 Up
R2(config-router)#
R2(config-router)#neighbor
172.17.3.1 remote-as 65000 // IPv4 IBGP PEER
R2(config-router)#neighbor
172.17.3.1 update-source loop 0 // USE LOOPBACK 0 AS SOURCE IP FOR BGP UPDATES
R2(config-router)#
R2(config-router)#neighbor
2001:db8:cafe:33::1 remote-as 65000 // IPv6 IBGP PEER
R2(config-router)#neighbor
2001:db8:cafe:33::1 update-source loop 0
R2(config-router)#address-family
ipv4 unicast
R2(config-router-af)#network
172.16.2.0 mask 255.255.255.0
R2(config-router-af)#neighbor
192.168.1.1 activate
R2(config-router-af)#
R2(config-router-af)#neighbor
172.17.3.1 activate
R2(config-router-af)#neighbor
172.17.3.1 next-hop-self // USE R2 AS NEXT HOP FOR EBGP LEARNED ROUTES
R2(config-router-af)#exit
R2(config-router)#address-family
ipv6 unicast
R2(config-router-af)#network
2001:db8:cafe:2::/64
R2(config-router-af)#neighbor
192.168.1.1 activate
R2(config-router-af)#
*Jul 21
08:22:44.751: %BGP-5-ADJCHANGE: neighbor 192.168.1.1 Down Capability changed
*Jul 21
08:22:44.755: %BGP_SESSION-5-ADJCHANGE: neighbor 192.168.1.1 IPv4 Unicast
topology base removed from session
Capability changed
*Jul 21 08:22:45.587:
%BGP-5-ADJCHANGE: neighbor 192.168.1.1 Up
R2(config-router-af)#neighbor
192.168.1.1 route-map HOPv6 out // SIMILAR ROUTE MAP IN R1
R2(config-router-af)#
R2(config-router-af)#neighbor
2001:db8:cafe:33::1 activate
R2(config-router-af)#neighbor
2001:db8:cafe:33::1 next-hop-self
R2(config-router-af)#exit
R2(config-router)#route-map
HOPv6
R2(config-route-map)#set ipv6
next-hop 2001:db8:feed:1::2 // USE R2 IPv6 WAN IP (SERIAL 2/0)
R2(config-route-map)#end
R2#
*Jul 21 08:28:48.047:
%BGP-5-ADJCHANGE: neighbor 172.17.3.1 Up
R2#
*Jul 21 08:31:54.431:
%BGP-5-ADJCHANGE: neighbor 2001:DB8:CAFE:33::1 Up
R2#
R3#conf t // CONFIGURE MP-BGP ON R3 (IBGP WITH R2)
Enter
configuration commands, one per line.
End with CNTL/Z.
R3(config)#router
bgp 65000
R3(config-router)#bgp
router-id 3.3.3.3
R3(config-router)#neighbor
2001:db8:cafe:22::1 remote-as 65000
R3(config-router)#neighbor
2001:db8:cafe:22::1 update-source loop 0
R3(config-router)#
R3(config-router)#neighbor
172.17.2.1 remote-as 65000
R3(config-router)#
*Jul 21 08:28:47.971:
%BGP-5-ADJCHANGE: neighbor 172.17.2.1 Up
R3(config-router)#
R3(config-router)#neighbor
172.17.2.1 update-source loop 0
R3(config-router)#
R3(config-router)#address-family
ipv4 unicast
R3(config-router-af)#network
172.16.3.0 mask 255.255.0.0
% BGP: Incorrect network or
mask/prefix-length configured
R3(config-router-af)#network
172.16.3.0 mask 255.255.255.0
R3(config-router-af)#neighbor
172.17.2.1 activate
R3(config-router-af)#exit
R3(config-router)#address-family
ipv6 unicast
R3(config-router-af)#network
2001:db8:cafe:3::/64
R3(config-router-af)#neighbor
2001:db8:cafe:22::1 activate
R3(config-router-af)#
*Jul 21 08:31:54.359:
%BGP-5-ADJCHANGE: neighbor 2001:DB8:CAFE:22::1 Up
R3(config-router-af)#end
R3#
R2#show
bgp ?
*
All scopes
all
All address families
ipv4
Address family
ipv6
Address family
l2vpn
Address family
nsap
Address family
rtfilter
Address family
vpnv4
Address family
vpnv6
Address family
vrf
VRF scope
R2#show
bgp all ?
community Display routes matching the
communities
community-list Display routes matching the community-list
dampening Display detailed information about
dampening
extcommunity-list Display routes matching the extcommunity-list
filter-list Display routes conforming to the
filter-list
inconsistent-as Display only routes with inconsistent
origin ASs
neighbors Detailed information on TCP and BGP
neighbor connections
nexthops Nexthop address table
paths Path information
peer-group Display information on peer-groups
pending-prefixes Display prefixes pending deletion
quote-regexp Display routes matching the AS path
"regular expression"
regexp Display routes matching the AS
path regular expression
replication Display replication status of
update-group(s)
rib-failure Display bgp routes that failed to
install in the routing
table (RIB)
summary Summary of BGP neighbor status
update-group Display information on update-groups
update-sources Update source interface table
version Display prefixes with matching
version numbers
| Output modifiers
<cr>
R2#show
bgp all neighbors // VERIFY IPv4 AND IPv4 BGP PEERING
For address family: IPv4 Unicast
BGP neighbor is 172.17.3.1, remote AS 65000, internal link // INTERNAL LINK REFERS IBGP
BGP version 4, remote router ID 3.3.3.3
BGP state = Established, up for 00:06:16
Last read 00:00:46, last write 00:00:02, hold
time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable
(disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and
received
Address family IPv4 Unicast: advertised and
received
Enhanced Refresh Capability: advertised and
received
Multisession Capability:
Stateful switchover support enabled: NO for
session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 3 2
Keepalives: 9 8
Route Refresh: 0 0
Total: 13 11
Default minimum time between advertisement
runs is 0 seconds
Address tracking is enabled, the RIB does
have a route to 172.17.3.1
Connections established 1; dropped 0
Last reset never
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection
state is ESTAB, I/O status: 1, unread input bytes: 0
Connection
is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 255
Local
host: 172.17.2.1, Local port: 26767
Foreign
host: 172.17.3.1, Foreign port: 179
Connection
tableid (VRF): 0
Maximum
output segment queue size: 50
Enqueued
packets for retransmit: 0, input: 0
mis-ordered: 0 (0 bytes)
Event
Timers (current time is 0x2D079C):
Timer Starts Wakeups Next
Retrans 11 0 0x0
TimeWait 0 0 0x0
AckHold 10 7 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 1 0 0x307090
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss:
1372476788 snduna: 1372477155 sndnxt: 1372477155
irs:
2428860457 rcvnxt: 2428860745
sndwnd: 16018
scale: 0 maxrcvwnd:
16384
rcvwnd: 16097
scale: 0 delrcvwnd:
287
SRTT: 770
ms, RTTO: 2360 ms, RTV: 1590 ms, KRTT: 0 ms
minRTT:
16 ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status
Flags: active open
Option
Flags: nagle, path mtu capable
IP
Precedence value : 6
Datagrams
(max data segment is 1460 bytes):
Rcvd: 21
(out of order: 0), with data: 11, total data bytes: 287
Sent: 22
(retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with
data: 11, total data bytes: 366
Packets received in fast path: 0, fast
processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path:
0
TCP
Semaphore 0x6A359FDC FREE
BGP neighbor is
192.168.1.1, remote AS 65100, external
link // EXTERNAL LINK REFERS EBGP
BGP version 4, remote router ID 1.1.1.1
BGP state = Established, up for 00:12:18
Last read 00:00:40, last write 00:00:37, hold
time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable
(disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and
received
Address family IPv4 Unicast: advertised and
received
Address family IPv6 Unicast: advertised and
received
Enhanced Refresh Capability: advertised and
received
Multisession Capability:
Stateful switchover support enabled: NO for
session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 9 4
Keepalives: 13 15
Route Refresh: 0 0
Total: 25 20
Default minimum time between advertisement
runs is 30 seconds
Address tracking is enabled, the RIB does
have a route to 192.168.1.1
Connections established 2; dropped 1
Last reset 00:12:19, due to Capability
changed of session 1
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection
state is ESTAB, I/O status: 1, unread input bytes: 0
Connection
is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 1
Local
host: 192.168.1.2, Local port: 20972
Foreign
host: 192.168.1.1, Foreign port: 179
Connection
tableid (VRF): 0
Maximum
output segment queue size: 50
Enqueued
packets for retransmit: 0, input: 0
mis-ordered: 0 (0 bytes)
Event
Timers (current time is 0x2D07A0):
Timer Starts Wakeups Next
Retrans 20 0 0x0
TimeWait 0 0 0x0
AckHold 17 14 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 92 91 0x2D0B94
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss:
3419991927 snduna: 3419992768 sndnxt: 3419992768
irs:
2818091020 rcvnxt: 2818091568
sndwnd: 15544
scale: 0 maxrcvwnd:
16384
rcvwnd: 15837
scale: 0 delrcvwnd:
547
SRTT: 931
ms, RTTO: 1468 ms, RTV: 537 ms, KRTT: 0 ms
minRTT: 8
ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status
Flags: active open
Option
Flags: nagle, path mtu capable
IP
Precedence value : 6
Datagrams
(max data segment is 1460 bytes):
Rcvd: 37
(out of order: 0), with data: 18, total data bytes: 547
Sent: 39
(retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with
data: 21, total data bytes: 840
Packets received in fast path: 0, fast
processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path:
0
TCP
Semaphore 0x6A359E8C FREE
For address family: IPv6 Unicast
BGP neighbor is
2001:DB8:CAFE:33::1, remote AS 65000,
internal link
BGP version 4, remote router ID 3.3.3.3
BGP state = Established, up for 00:03:10
Last read 00:00:38, last write 00:00:17, hold
time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable
(disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and
received
Address family IPv6 Unicast: advertised and
received
Enhanced Refresh Capability: advertised and
received
Multisession Capability:
Stateful switchover support enabled: NO for
session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 3 2
Keepalives: 5 5
Route Refresh: 0 0
Total: 9 8
Default minimum time between advertisement
runs is 0 seconds
Address tracking is enabled, the RIB does
have a route to 2001:DB8:CAFE:33::1
Connections established 1; dropped 0
Last reset never
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection
state is ESTAB, I/O status: 1, unread input bytes: 0
Connection
is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 255
Local
host: 2001:DB8:CAFE:22::1, Local port: 59230
Foreign
host: 2001:DB8:CAFE:33::1, Foreign port: 179
Connection
tableid (VRF): 0
Maximum
output segment queue size: 50
Enqueued
packets for retransmit: 0, input: 0
mis-ordered: 0 (0 bytes)
Event
Timers (current time is 0x2D07A0):
Timer Starts Wakeups Next
Retrans 7 0 0x0
TimeWait 0 0 0x0
AckHold 6 3 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 1 0 0x334898
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss:
4247843150 snduna: 4247843492 sndnxt: 4247843492
irs:
3469059070 rcvnxt: 3469059329
sndwnd: 16043
scale: 0 maxrcvwnd:
16384
rcvwnd: 16126
scale: 0 delrcvwnd:
258
SRTT: 607
ms, RTTO: 2949 ms, RTV: 2342 ms, KRTT: 0 ms
minRTT: 8
ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status
Flags: active open
Option
Flags: nagle, path mtu capable
IP
Precedence value : 6
Datagrams
(max data segment is 1440 bytes):
Rcvd: 13
(out of order: 0), with data: 7, total data bytes: 258
Sent: 14
(retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with
data: 14, total data bytes: 909
Packets received in fast path: 0, fast
processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path:
0
TCP
Semaphore 0x6AAED7A0 FREE
BGP neighbor is
192.168.1.1, remote AS 65100, external
link
BGP version 4, remote router ID 1.1.1.1
BGP state = Established, up for 00:12:18
Last read 00:00:40, last write 00:00:37, hold
time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable
(disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and
received
Address family IPv4 Unicast: advertised and
received
Address family IPv6 Unicast: advertised and
received
Enhanced Refresh Capability: advertised and
received
Multisession Capability:
Stateful switchover support enabled: NO for
session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 9 4
Keepalives: 13 15
Route Refresh: 0 0
Total: 25 20
Default minimum time between advertisement
runs is 30 seconds
Address tracking is enabled, the RIB does
have a route to 192.168.1.1
Connections established 2; dropped 1
Last reset 00:12:21, due to Capability
changed of session 1
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection
state is ESTAB, I/O status: 1, unread input bytes: 0
Connection
is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 1
Local
host: 192.168.1.2, Local port: 20972
Foreign
host: 192.168.1.1, Foreign port: 179
Connection
tableid (VRF): 0
Maximum
output segment queue size: 50
Enqueued
packets for retransmit: 0, input: 0
mis-ordered: 0 (0 bytes)
Event
Timers (current time is 0x2D10C8):
Timer Starts Wakeups Next
Retrans 20 0 0x0
TimeWait 0 0 0x0
AckHold 17 14 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 93 92 0x2D1150
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss:
3419991927 snduna: 3419992768 sndnxt: 3419992768
irs:
2818091020 rcvnxt: 2818091568
sndwnd: 15544
scale: 0 maxrcvwnd:
16384
rcvwnd: 15837
scale: 0 delrcvwnd:
547
SRTT: 931
ms, RTTO: 1468 ms, RTV: 537 ms, KRTT: 0 ms
minRTT: 8
ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status
Flags: active open
Option
Flags: nagle, path mtu capable
IP
Precedence value : 6
Datagrams
(max data segment is 1460 bytes):
Rcvd: 37
(out of order: 0), with data: 18, total data bytes: 547
Sent: 39
(retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with
data: 21, total data bytes: 840
Packets received in fast path: 0, fast
processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path:
0
TCP
Semaphore 0x6A359E8C FREE
For
address family: IPv4 Multicast
R2#show ip bgp neighbors // ALTERNATIVE VERIFICATION COMMAND
BGP neighbor is 172.17.3.1, remote AS 65000, internal link
BGP version 4, remote router ID 3.3.3.3
BGP state = Established, up for 00:11:20
Last read 00:00:19, last write 00:00:45, hold
time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable
(disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and
received
Address family IPv4 Unicast: advertised and
received
Enhanced Refresh Capability: advertised and
received
Multisession Capability:
Stateful switchover support enabled: NO for
session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 3 2
Keepalives: 14 14
Route Refresh: 0 0
Total: 18 17
Default minimum time between advertisement
runs is 0 seconds
For address family: IPv4 Unicast
Session: 172.17.3.1
BGP table version 6, neighbor version 6/0
Output queue size : 0
Index 3, Advertise bit 1
3 update-group member
NEXT_HOP is always this router for eBGP paths
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is
disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 2 1 (Consumes 64 bytes)
Prefixes Total: 2 1
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 1
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: --------
-------
Bestpath from this peer: 1 n/a
Total: 1 0
Number of NLRIs in the update sent: max 1,
min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: never
Last Sent Refresh End-of-rib: never
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 0 0
Refresh End-of-RIB 0 0
Address tracking is enabled, the RIB does
have a route to 172.17.3.1
Connections established 1; dropped 0
Last reset never
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection
state is ESTAB, I/O status: 1, unread input bytes: 0
Connection
is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 255
Local
host: 172.17.2.1, Local port: 26767
Foreign
host: 172.17.3.1, Foreign port: 179
Connection
tableid (VRF): 0
Maximum
output segment queue size: 50
Enqueued
packets for retransmit: 0, input: 0
mis-ordered: 0 (0 bytes)
Event
Timers (current time is 0x31AF88):
Timer Starts Wakeups Next
Retrans 16 0 0x0
TimeWait 0 0 0x0
AckHold 16 13 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 47 46 0x31B5AC
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss:
1372476788 snduna: 1372477250 sndnxt: 1372477250
irs:
2428860457 rcvnxt: 2428860859
sndwnd: 15923
scale: 0 maxrcvwnd:
16384
rcvwnd: 15983
scale: 0 delrcvwnd:
401
SRTT: 882
ms, RTTO: 1768 ms, RTV: 886 ms, KRTT: 0 ms
minRTT:
16 ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status
Flags: active open
Option
Flags: nagle, path mtu capable
IP
Precedence value : 6
Datagrams
(max data segment is 1460 bytes):
Rcvd: 32
(out of order: 0), with data: 17, total data bytes: 401
Sent: 33
(retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with
data: 16, total data bytes: 461
Packets received in fast path: 0, fast
processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path:
0
TCP
Semaphore 0x6A359FDC FREE
BGP neighbor is
192.168.1.1, remote AS 65100, external
link
BGP version 4, remote router ID 1.1.1.1
BGP state = Established, up for 00:17:24
Last read 00:00:22, last write 00:00:17, hold
time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable
(disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and
received
Address family IPv4 Unicast: advertised and
received
Address family IPv6 Unicast: advertised and
received
Enhanced Refresh Capability: advertised and
received
Multisession Capability:
Stateful switchover support enabled: NO for
session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 9 4
Keepalives: 19 21
Route Refresh: 0 0
Total: 31 26
Default minimum time between advertisement
runs is 30 seconds
For address family: IPv4 Unicast
Session: 192.168.1.1
BGP table version 6, neighbor version 6/0
Output queue size : 0
Index 2, Advertise bit 0
2 update-group member
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is
disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 2 1 (Consumes 64 bytes)
Prefixes Total: 2 1
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 1
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: --------
-------
Bestpath from this peer: 1 n/a
Invalid Path: 1 n/a
Total: 2 0
Number of NLRIs in the update sent: max 1,
min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: never
Last Sent Refresh End-of-rib: never
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 0 0
Refresh End-of-RIB 0 0
For address family: IPv6 Unicast
Session: 192.168.1.1
BGP table version 4, neighbor version 4/0
Output queue size : 0
Index 2, Advertise bit 0
2 update-group member
Outbound path policy configured
Route map for outgoing advertisements is
HOPv6
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is
disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 2 1 (Consumes 88 bytes)
Prefixes Total: 2 1
Implicit Withdraw: 0 0
Explicit Withdraw: 2 0
Used as bestpath: n/a 1
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: --------
-------
Bestpath from this peer: 1 n/a
Other Policies: 2 n/a
Total: 3 0
Number of NLRIs in the update sent: max 1,
min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: 00:14:09
Last Sent Refresh End-of-rib: 00:14:09
Refresh-Out took 0 seconds
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 1 0
Refresh End-of-RIB 1 0
Address tracking is enabled, the RIB does
have a route to 192.168.1.1
Connections established 2; dropped 1
Last reset 00:17:25, due to Capability
changed of session 1
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection
state is ESTAB, I/O status: 1, unread input bytes: 0
Connection
is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 1
Local
host: 192.168.1.2, Local port: 20972
Foreign
host: 192.168.1.1, Foreign port: 179
Connection
tableid (VRF): 0
Maximum
output segment queue size: 50
Enqueued
packets for retransmit: 0, input: 0
mis-ordered: 0 (0 bytes)
Event
Timers (current time is 0x31B41C):
Timer Starts Wakeups Next
Retrans 26 0 0x0
TimeWait 0 0 0x0
AckHold 23 20 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 323 322 0x31B518
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss:
3419991927 snduna: 3419992882 sndnxt: 3419992882
irs:
2818091020 rcvnxt: 2818091682
sndwnd: 15430
scale: 0 maxrcvwnd:
16384
rcvwnd: 15723
scale: 0 delrcvwnd:
661
SRTT: 969
ms, RTTO: 1216 ms, RTV: 247 ms, KRTT: 0 ms
minRTT: 8
ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status
Flags: active open
Option
Flags: nagle, path mtu capable
IP
Precedence value : 6
Datagrams
(max data segment is 1460 bytes):
Rcvd: 49
(out of order: 0), with data: 24, total data bytes: 661
Sent: 51
(retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with
data: 27, total data bytes: 954
Packets received in fast path: 0, fast
processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path:
0
TCP
Semaphore 0x6A359E8C FREE
R2#show
bgp ?
*
All scopes
all
All address families
ipv4
Address family
ipv6
Address family
l2vpn
Address family
nsap
Address family
rtfilter
Address family
vpnv4
Address family
vpnv6
Address family
vrf
VRF scope
R2#show
bgp ipv6 ?
multicast
Address Family modifier
mvpn
Address Family modifier
unicast
Address Family modifier
R2#show
bgp ipv6 unicast ?
X:X:X:X::X/<0-128> IPv6 prefix <network>/<length>
community Display routes matching the
communities
community-list Display routes matching the
community-list
dampening Display detailed information about
dampening
extcommunity-list Display routes matching the
extcommunity-list
filter-list Display routes conforming to the
filter-list
inconsistency Display all inconsistent paths
inconsistent-as Display only routes with inconsistent
origin ASs
injected-paths Display all injected paths
labels Display BGP labels for prefixes
neighbors Detailed information on TCP and BGP
neighbor connections
nexthops Nexthop address table
paths Path information
peer-group Display information on peer-groups
pending-prefixes Display prefixes pending deletion
prefix-list Display routes matching the
prefix-list
quote-regexp Display routes matching the AS path
"regular expression"
regexp Display routes matching the AS
path regular expression
replication Display replication status of
update-group(s)
rib-failure Display bgp routes that failed to
install in the routing
table (RIB)
route-map Display routes matching the
route-map
route-server Route server information
rpki Display RPKI Neighbor Cache
summary Summary of BGP neighbor status
update-group Display information on update-groups
update-sources Update source interface table
version Display prefixes with matching
version numbers
| Output modifiers
<cr>
R2#show bgp ipv6 unicast
neighbors // VERIFY IPv6 BGP PEER
BGP neighbor is
2001:DB8:CAFE:33::1, remote AS 65000,
internal link
BGP version 4, remote router ID 3.3.3.3
BGP state = Established, up for
00:10:38
Last read 00:00:53, last write 00:00:16, hold
time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable
(disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and
received
Address family IPv6 Unicast: advertised and
received
Enhanced Refresh Capability: advertised and
received
Multisession Capability:
Stateful switchover support enabled: NO for
session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 3 2
Keepalives: 13 13
Route Refresh: 0 0
Total: 17 16
Default minimum time between advertisement
runs is 0 seconds
For address family: IPv6 Unicast
Session: 2001:DB8:CAFE:33::1
BGP table version 4, neighbor version 4/0
Output queue size : 0
Index 3, Advertise bit 1
3 update-group member
NEXT_HOP is always this router for eBGP paths
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is
disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 2 1 (Consumes 88 bytes)
Prefixes Total: 2 1
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 1
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: --------
-------
Bestpath from this peer: 1 n/a
Total: 1 0
Number of NLRIs in the update sent: max 1,
min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: never
Last Sent Refresh End-of-rib: never
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 0 0
Refresh End-of-RIB 0 0
Address tracking is enabled, the RIB does
have a route to 2001:DB8:CAFE:33::1
Connections established 1; dropped 0
Last reset never
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection
state is ESTAB, I/O status: 1, unread input bytes: 0
Connection
is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 255
Local
host: 2001:DB8:CAFE:22::1, Local port: 59230
Foreign
host: 2001:DB8:CAFE:33::1, Foreign port: 179
Connection
tableid (VRF): 0
Maximum
output segment queue size: 50
Enqueued
packets for retransmit: 0, input: 0
mis-ordered: 0 (0 bytes)
Event
Timers (current time is 0x33F368):
Timer Starts Wakeups Next
Retrans 15 0 0x0
TimeWait 0 0 0x0
AckHold 14 11 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 24 23 0x33F57A
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss:
4247843150 snduna: 4247843644 sndnxt: 4247843644
irs:
3469059070 rcvnxt: 3469059481
sndwnd: 15891
scale: 0 maxrcvwnd:
16384
rcvwnd: 15974
scale: 0 delrcvwnd:
429
SRTT: 865
ms, RTTO: 1866 ms, RTV: 1001 ms, KRTT: 0 ms
minRTT: 8
ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status
Flags: active open
Option
Flags: nagle, path mtu capable
IP
Precedence value : 6
Datagrams
(max data segment is 1440 bytes):
Rcvd: 30
(out of order: 0), with data: 16, total data bytes: 429
Sent: 31
(retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with
data: 31, total data bytes: 1741
Packets received in fast path: 0, fast
processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path:
0
TCP
Semaphore 0x6AAED7A0 FREE
BGP neighbor is
192.168.1.1, remote AS 65100, external
link
BGP version 4, remote router ID 1.1.1.1
BGP state = Established, up for 00:19:55
Last read 00:00:15, last write 00:00:59, hold
time is 180, keepalive interval is 60 seconds
Neighbor sessions:
1 active, is not multisession capable
(disabled)
Neighbor capabilities:
Route refresh: advertised and received(new)
Four-octets ASN Capability: advertised and
received
Address family IPv4 Unicast: advertised and
received
Address family IPv6 Unicast: advertised and
received
Enhanced Refresh Capability: advertised and
received
Multisession Capability:
Stateful switchover support enabled: NO for
session 1
Message statistics:
InQ depth is 0
OutQ depth is 0
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 9 4
Keepalives: 22 24
Route Refresh: 0 0
Total: 34 29
Default minimum time between advertisement
runs is 30 seconds
For address family: IPv4 Unicast
Session: 192.168.1.1
BGP table version 6, neighbor version 6/0
Output queue size : 0
Index 2, Advertise bit 0
2 update-group member
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is
disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 2 1 (Consumes 64 bytes)
Prefixes Total: 2 1
Implicit Withdraw: 0 0
Explicit Withdraw: 0 0
Used as bestpath: n/a 1
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: --------
-------
Bestpath from this peer: 1 n/a
Invalid Path: 1 n/a
Total: 2 0
Number of NLRIs in the update sent: max 1,
min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: never
Last Sent Refresh End-of-rib: never
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 0 0
Refresh End-of-RIB 0 0
For address family: IPv6 Unicast
Session: 192.168.1.1
BGP table version 4, neighbor version 4/0
Output queue size : 0
Index 2, Advertise bit 0
2 update-group member
Outbound path policy configured
Route map for outgoing advertisements is HOPv6
Slow-peer detection is disabled
Slow-peer split-update-group dynamic is
disabled
Sent Rcvd
Prefix activity: ---- ----
Prefixes Current: 2 1 (Consumes 88 bytes)
Prefixes Total: 2 1
Implicit Withdraw: 0 0
Explicit Withdraw: 2 0
Used as bestpath: n/a 1
Used as multipath: n/a 0
Outbound Inbound
Local Policy Denied Prefixes: --------
-------
Bestpath from this peer: 1 n/a
Other Policies: 2 n/a
Total: 3 0
Number of NLRIs in the update sent: max 1,
min 0
Last detected as dynamic slow peer: never
Dynamic slow peer recovered: never
Refresh Epoch: 1
Last Sent Refresh Start-of-rib: 00:16:47
Last Sent Refresh End-of-rib: 00:16:47
Refresh-Out took 0 seconds
Last Received Refresh Start-of-rib: never
Last Received Refresh End-of-rib: never
Sent Rcvd
Refresh activity: ---- ----
Refresh Start-of-RIB 1 0
Refresh End-of-RIB 1 0
Address tracking is enabled, the RIB does
have a route to 192.168.1.1
Connections established 2; dropped 1
Last reset 00:20:03, due to Capability
changed of session 1
Transport(tcp) path-mtu-discovery is enabled
Graceful-Restart is disabled
Connection
state is ESTAB, I/O status: 1, unread input bytes: 0
Connection
is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 1
Local
host: 192.168.1.2, Local port: 20972
Foreign
host: 192.168.1.1, Foreign port: 179
Connection
tableid (VRF): 0
Maximum
output segment queue size: 50
Enqueued
packets for retransmit: 0, input: 0
mis-ordered: 0 (0 bytes)
Event
Timers (current time is 0x341DC8):
Timer Starts Wakeups Next
Retrans 29 0 0x0
TimeWait 0 0 0x0
AckHold 26 23 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 456 455 0x341DDA
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0
iss:
3419991927 snduna: 3419992939 sndnxt: 3419992939
irs:
2818091020 rcvnxt: 2818091739
sndwnd: 15373
scale: 0 maxrcvwnd:
16384
rcvwnd: 15666
scale: 0 delrcvwnd:
718
SRTT: 979
ms, RTTO: 1146 ms, RTV: 167 ms, KRTT: 0 ms
minRTT: 8
ms, maxRTT: 1000 ms, ACK hold: 200 ms
Status
Flags: active open
Option
Flags: nagle, path mtu capable
IP
Precedence value : 6
Datagrams
(max data segment is 1460 bytes):
Rcvd: 55
(out of order: 0), with data: 27, total data bytes: 718
Sent: 57
(retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with
data: 30, total data bytes: 1011
Packets received in fast path: 0, fast
processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path:
0
TCP
Semaphore 0x6A359E8C FREE
R1#show
bgp ipv4 ?
mdt
Address Family modifier
multicast
Address Family modifier
mvpn
Address Family modifier
unicast
Address Family modifier
R1#show
bgp ipv4 unicast ?
A.B.C.D Network in the BGP routing table to
display
A.B.C.D/nn IP prefix
<network>/<length>, e.g., 35.0.0.0/8
cidr-only Display only routes with non-natural
netmasks
community Display routes matching the
communities
community-list Display routes matching the community-list
dampening Display detailed information about
dampening
extcommunity-list Display routes matching the extcommunity-list
filter-list Display routes conforming to the
filter-list
import Display route topology import /
export activity
inconsistency Display all inconsistent paths
inconsistent-as Display only routes with inconsistent
origin ASs
injected-paths Display all injected paths
labels Display Labels for IPv4 NLRI
specific information
neighbors Detailed information on TCP and BGP
neighbor connections
nexthops Nexthop address table
oer-paths Display all oer controlled paths
paths Path information
peer-group Display information on peer-groups
pending-prefixes Display prefixes pending deletion
prefix-list Display routes matching the prefix-list
quote-regexp Display routes matching the AS path
"regular expression"
regexp Display routes matching the AS
path regular expression
replication Display replication status of
update-group(s)
rib-failure Display bgp routes that failed to
install in the routing
table (RIB)
route-map Display routes matching the route-map
route-server Route server information
rpki Display RPKI Neighbor Cache
summary Summary of BGP neighbor status
template Display peer-policy/peer-session
templates
topology Routing topology instance
update-group Display information on update-groups
update-sources Update source interface table
va Display virtual aggregation
prefixes
version Display prefixes with matching
version numbers
| Output modifiers
<cr>
R1#show bgp ipv4 unicast summary // VERIFY IPv4 BGP PEER
BGP
router identifier 1.1.1.1, local AS number 65100
BGP table
version is 6, main routing table version 6
3 network
entries using 444 bytes of memory
3 path
entries using 192 bytes of memory
3/3 BGP
path/bestpath attribute entries using 408 bytes of memory
1 BGP
AS-PATH entries using 24 bytes of memory
0 BGP
route-map cache entries using 0 bytes of memory
0 BGP
filter-list cache entries using 0 bytes of memory
BGP using
1068 total bytes of memory
BGP
activity 7/1 prefixes, 8/2 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer
InQ OutQ Up/Down State/PfxRcd
192.168.1.2 4
65000 37 32
6 0 0 00:22:43 2
R1#
R1#show bgp ipv6 unicast summary
BGP
router identifier 1.1.1.1, local AS number 65100
BGP table
version is 4, main routing table version 4
3 network
entries using 516 bytes of memory
3 path
entries using 264 bytes of memory
3/3 BGP
path/bestpath attribute entries using 408 bytes of memory
1 BGP
AS-PATH entries using 24 bytes of memory
0 BGP
route-map cache entries using 0 bytes of memory
0 BGP
filter-list cache entries using 0 bytes of memory
BGP using
1212 total bytes of memory
BGP
activity 7/1 prefixes, 8/2 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer
InQ OutQ Up/Down State/PfxRcd
192.168.1.2 4
65000 37 32
4 0 0 00:22:47 // NOTICE IPv4 IS USED FOR EBGP TRANSPORT
R2#show bgp ipv4 unicast summary
BGP
router identifier 2.2.2.2, local AS number 65000
BGP table
version is 6, main routing table version 6
3 network
entries using 444 bytes of memory
3 path
entries using 192 bytes of memory
3/3 BGP
path/bestpath attribute entries using 408 bytes of memory
1 BGP
AS-PATH entries using 24 bytes of memory
0 BGP
route-map cache entries using 0 bytes of memory
0 BGP
filter-list cache entries using 0 bytes of memory
BGP using
1068 total bytes of memory
BGP
activity 6/0 prefixes, 7/1 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer
InQ OutQ Up/Down State/PfxRcd
172.17.3.1 4
65000 24 26
6 0 0 00:18:03 1
192.168.1.1 4
65100 34 38
6 0 0 00:24:06 1
R2#
R2#show bgp ipv6 unicast summary
BGP
router identifier 2.2.2.2, local AS number 65000
BGP table
version is 4, main routing table version 4
3 network
entries using 516 bytes of memory
3 path
entries using 264 bytes of memory
3/3 BGP
path/bestpath attribute entries using 408 bytes of memory
1 BGP
AS-PATH entries using 24 bytes of memory
0 BGP
route-map cache entries using 0 bytes of memory
0 BGP
filter-list cache entries using 0 bytes of memory
BGP using
1212 total bytes of memory
BGP
activity 6/0 prefixes, 7/1 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer
InQ OutQ Up/Down State/PfxRcd
2001:DB8:CAFE:33::1
4 65000 22
22 4 0
0 00:15:03 1
192.168.1.1 4
65100 34 38
4 0 0 00:24:12
R1#show bgp ipv4 unicast // VIEW IPv4 BGP TABLE
BGP table
version is 6, local router ID is 1.1.1.1
Status
codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m
multipath, b backup-path, f RT-Filter,
x best-external, a
additional-path, c RIB-compressed,
Origin
codes: i - IGP, e - EGP, ? - incomplete
RPKI
validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*>
10.1.0.0/16 0.0.0.0 0 32768 i
*>
172.16.2.0/24 192.168.1.2 0 0 65000 i
*>
172.16.3.0/24 192.168.1.2 0 65000 i
R1#
R1#show ip bgp // SIMILAR COMMAND TO show bgp ipv4 unicast
BGP table
version is 6, local router ID is 1.1.1.1
Status
codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m
multipath, b backup-path, f RT-Filter,
x best-external, a
additional-path, c RIB-compressed,
Origin
codes: i - IGP, e - EGP, ? - incomplete
RPKI
validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*>
10.1.0.0/16 0.0.0.0 0 32768 i
*>
172.16.2.0/24 192.168.1.2 0 0 65000 i
*>
172.16.3.0/24 192.168.1.2 0 65000 i
R1#show bgp ipv6 unicast // VIEW IPv6 BGP TABLE
BGP table
version is 4, local router ID is 1.1.1.1
Status
codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m
multipath, b backup-path, f RT-Filter,
x best-external, a
additional-path, c RIB-compressed,
Origin
codes: i - IGP, e - EGP, ? - incomplete
RPKI
validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*>
2001:DB8:BEEF:1::/64
:: 0 32768 i
*>
2001:DB8:CAFE:2::/64
2001:DB8:FEED:1::2 // NOTICE USING R2 EBGP NEXT HOP
0 0 65000 i
*>
2001:DB8:CAFE:3::/64
2001:DB8:FEED:1::2
0 65000 i
R2#show bgp ipv4 unicast
BGP table
version is 6, local router ID is 2.2.2.2
Status
codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m
multipath, b backup-path, f RT-Filter,
x best-external, a
additional-path, c RIB-compressed,
Origin
codes: i - IGP, e - EGP, ? - incomplete
RPKI
validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*>
10.1.0.0/16 192.168.1.1 0 0 65100 i
*>
172.16.2.0/24 0.0.0.0 0 32768 i
r>i 172.16.3.0/24 172.17.3.1 0 100
0 i // NOTICE r SINCE 172.16.3.0/24 IS LEARNED AND INSTALLING IN THE ROUTING TABLE VIA EIGRP (LOWER AD 90 vs AD 200)
R2#show
ip bgp r?
regexp replication rib-failure
route-map
route-server rpki
rtfilter
R2#show
ip bgp rib-failure
Network Next Hop RIB-failure RIB-NH Matches
172.16.3.0/24 172.17.3.1 Higher admin distance n/a
R2#show
bgp ipv6 unicast
BGP table
version is 4, local router ID is 2.2.2.2
Status
codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m
multipath, b backup-path, f RT-Filter,
x best-external, a
additional-path, c RIB-compressed,
Origin
codes: i - IGP, e - EGP, ? - incomplete
RPKI
validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*>
2001:DB8:BEEF:1::/64
2001:DB8:FEED:1::1 // NOTICE USING R2 EBGP NEXT HOP
0 0 65100 i
*>
2001:DB8:CAFE:2::/64
:: 0 32768 i
r>i 2001:DB8:CAFE:3::/64
2001:DB8:CAFE:33::1
0 100 0 i
R3#show
bgp ipv4 unicast
BGP table
version is 4, local router ID is 3.3.3.3
Status
codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m
multipath, b backup-path, f RT-Filter,
x best-external, a
additional-path, c RIB-compressed,
Origin
codes: i - IGP, e - EGP, ? - incomplete
RPKI
validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*>i 10.1.0.0/16 172.17.2.1 0 100
0 65100 i // R2 NEXT HOP DUE TO next-hop-self
r>i 172.16.2.0/24 172.17.2.1
0 100 0 i
*>
172.16.3.0/24 0.0.0.0 0 32768 i
R3#
R3#show
bgp ipv6 unicast
BGP table
version is 4, local router ID is 3.3.3.3
Status
codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m
multipath, b backup-path, f RT-Filter,
x best-external, a
additional-path, c RIB-compressed,
Origin
codes: i - IGP, e - EGP, ? - incomplete
RPKI
validation codes: V valid, I invalid, N Not found
Network Next Hop Metric LocPrf Weight Path
*>i 2001:DB8:BEEF:1::/64
2001:DB8:CAFE:22::1
0 100 0 65100 i
r>i 2001:DB8:CAFE:2::/64
2001:DB8:CAFE:22::1
0 100 0 i
*>
2001:DB8:CAFE:3::/64
:: 0 32768 i
R1#show
ip route
Codes: L
- local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O -
OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 -
OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF
external type 2
i - IS-IS, su - IS-IS summary, L1 -
IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate
default, U - per-user static route
o - ODR, P - periodic downloaded static
route, H - NHRP, l - LISP
+ - replicated route, % - next hop
override
Gateway
of last resort is not set
10.0.0.0/8 is variably subnetted, 4
subnets, 3 masks
C 10.0.0.0/24 is directly connected,
Loopback0
L 10.0.0.1/32 is directly connected,
Loopback0
C 10.1.0.0/16 is directly connected,
Loopback1
L 10.1.0.1/32 is directly connected,
Loopback1
172.16.0.0/24 is subnetted, 2 subnets
B 172.16.2.0 [20/0] via 192.168.1.2,
00:31:23 // EBGP AD 20
B 172.16.3.0 [20/0] via 192.168.1.2,
00:23:18
192.168.1.0/24 is variably subnetted, 2
subnets, 2 masks
C 192.168.1.0/30 is directly connected,
Serial2/0
L 192.168.1.1/32 is directly connected,
Serial2/0
R1#
R1#show
ipv6 route
IPv6
Routing Table - default - 9 entries
Codes: C
- Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile
Router, R - RIP
H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA
- ISIS interarea
IS - ISIS summary, D - EIGRP, EX - EIGRP
external, ND - ND Default
NDp - ND Prefix, DCE - Destination, NDr
- Redirect, O - OSPF Intra
OI - OSPF Inter, OE1 - OSPF ext 1, OE2 -
OSPF ext 2, ON1 - OSPF NSSA ext 1
ON2 - OSPF NSSA ext 2, l - LISP
C 2001:DB8:BEEF:1::/64 [0/0]
via Loopback1, directly connected
L 2001:DB8:BEEF:1::1/128 [0/0]
via Loopback1, receive
C 2001:DB8:BEEF:11::/64 [0/0]
via Loopback0, directly connected
L 2001:DB8:BEEF:11::1/128 [0/0]
via Loopback0, receive
B 2001:DB8:CAFE:2::/64 [20/0] // EBGP AD 20
via FE80::C802:23FF:FE24:0, Serial2/0
B 2001:DB8:CAFE:3::/64 [20/0]
via FE80::C802:23FF:FE24:0, Serial2/0
C 2001:DB8:FEED:1::/64 [0/0]
via Serial2/0, directly connected
L 2001:DB8:FEED:1::1/128 [0/0]
via Serial2/0, receive
L FF00::/8 [0/0]
via Null0, receive
R2#show
ip route
Codes: L
- local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O -
OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 -
OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF
external type 2
i - IS-IS, su - IS-IS summary, L1 -
IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate
default, U - per-user static route
o - ODR, P - periodic downloaded static
route, H - NHRP, l - LISP
+ - replicated route, % - next hop
override
Gateway
of last resort is not set
10.0.0.0/16 is subnetted, 1 subnets
B 10.1.0.0 [20/0] via 192.168.1.1,
00:32:57
172.16.0.0/16 is variably subnetted, 5
subnets, 3 masks
C 172.16.1.0/30 is directly connected,
Serial2/1
L 172.16.1.1/32 is directly connected,
Serial2/1
C 172.16.2.0/24 is directly connected,
Loopback1
L 172.16.2.1/32 is directly connected,
Loopback1
D 172.16.3.0/24 [90/2297856] via
172.16.1.2, 00:48:06, Serial2/1 // EIGRP (INTERNAL AD 90) LEARNED ROUTES FROM R3
172.17.0.0/16 is variably subnetted, 3
subnets, 2 masks
C 172.17.2.0/24 is directly connected,
Loopback0
L 172.17.2.1/32 is directly connected,
Loopback0
D 172.17.3.0/24 [90/2297856] via
172.16.1.2, 00:48:02, Serial2/1
192.168.1.0/24 is variably subnetted, 2
subnets, 2 masks
C 192.168.1.0/30 is directly connected,
Serial2/0
L 192.168.1.2/32 is directly connected,
Serial2/0
R2#
R2#show
ipv6 route
IPv6
Routing Table - default - 12 entries
Codes: C
- Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile
Router, R - RIP
H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA
- ISIS interarea
IS - ISIS summary, D - EIGRP, EX - EIGRP
external, ND - ND Default
NDp - ND Prefix, DCE - Destination, NDr
- Redirect, O - OSPF Intra
OI - OSPF Inter, OE1 - OSPF ext 1, OE2 -
OSPF ext 2, ON1 - OSPF NSSA ext 1
ON2 - OSPF NSSA ext 2, l - LISP
B 2001:DB8:BEEF:1::/64 [20/0]
via FE80::C801:27FF:FE70:0, Serial2/0
C 2001:DB8:CAFE:1::/64 [0/0]
via Serial2/1, directly connected
L 2001:DB8:CAFE:1::1/128 [0/0]
via Serial2/1, receive
C 2001:DB8:CAFE:2::/64 [0/0]
via Loopback1, directly connected
L 2001:DB8:CAFE:2::1/128 [0/0]
via Loopback1, receive
D 2001:DB8:CAFE:3::/64 [90/2297856]
via FE80::C803:1CFF:FE48:0, Serial2/1
C 2001:DB8:CAFE:22::/64 [0/0]
via Loopback0, directly connected
L 2001:DB8:CAFE:22::1/128 [0/0]
via Loopback0, receive
D 2001:DB8:CAFE:33::/64 [90/2297856]
via FE80::C803:1CFF:FE48:0, Serial2/1
C 2001:DB8:FEED:1::/64 [0/0]
via Serial2/0, directly connected
L 2001:DB8:FEED:1::2/128 [0/0]
via Serial2/0, receive
L FF00::/8 [0/0]
via Null0, receive
R3#show
ip route
Codes: L
- local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O -
OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 -
OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF
external type 2
i - IS-IS, su - IS-IS summary, L1 -
IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate
default, U - per-user static route
o - ODR, P - periodic downloaded static
route, H - NHRP, l - LISP
+ - replicated route, % - next hop
override
Gateway
of last resort is not set
10.0.0.0/16 is subnetted, 1 subnets
B 10.1.0.0 [200/0] via 172.17.2.1,
00:28:14 // IBGP (AD 200) LEARNED ROUTE FROM R2
172.16.0.0/16 is variably subnetted, 5
subnets, 3 masks
C 172.16.1.0/30 is directly connected,
Serial2/1
L 172.16.1.2/32 is directly connected,
Serial2/1
D 172.16.2.0/24 [90/2297856] via
172.16.1.1, 00:49:25, Serial2/1 // EIGRP (AD 90) LEARNED ROUTE FROM R2
C 172.16.3.0/24 is directly connected,
Loopback1
L 172.16.3.1/32 is directly connected,
Loopback1
172.17.0.0/16 is variably subnetted, 3
subnets, 2 masks
D 172.17.2.0/24 [90/2297856] via
172.16.1.1, 00:49:25, Serial2/1
C 172.17.3.0/24 is directly connected,
Loopback0
L 172.17.3.1/32 is directly connected,
Loopback0
R3#
R3#show
ipv6 route
IPv6
Routing Table - default - 10 entries
Codes: C
- Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile
Router, R - RIP
H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA
- ISIS interarea
IS - ISIS summary, D - EIGRP, EX - EIGRP
external, ND - ND Default
NDp - ND Prefix, DCE - Destination, NDr
- Redirect, O - OSPF Intra
OI - OSPF Inter, OE1 - OSPF ext 1, OE2 -
OSPF ext 2, ON1 - OSPF NSSA ext 1
ON2 - OSPF NSSA ext 2, l - LISP
B 2001:DB8:BEEF:1::/64 [200/0] // IBGP (AD 200) LEARNED ROUTE FROM R2
via 2001:DB8:CAFE:22::1
C 2001:DB8:CAFE:1::/64 [0/0]
via Serial2/1, directly connected
L 2001:DB8:CAFE:1::2/128 [0/0]
via Serial2/1, receive
D 2001:DB8:CAFE:2::/64 [90/2297856] // EIGRP (AD 90) LEARNED ROUTE
via FE80::C802:23FF:FE24:0, Serial2/1
C 2001:DB8:CAFE:3::/64 [0/0]
via Loopback1, directly connected
L 2001:DB8:CAFE:3::1/128 [0/0]
via Loopback1, receive
D 2001:DB8:CAFE:22::/64 [90/2297856]
via FE80::C802:23FF:FE24:0, Serial2/1
C 2001:DB8:CAFE:33::/64 [0/0]
via Loopback0, directly connected
L 2001:DB8:CAFE:33::1/128 [0/0]
via Loopback0, receive
L FF00::/8 [0/0]
via Null0, receive
R3#ping 10.1.0.1 source
172.16.3.1 // VERIFY IPv4 CONNECTIIVTY TO R1 (ISP)
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 10.1.0.1, timeout is 2 seconds:
Packet
sent with a source address of 172.16.3.1
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 16/35/64 ms
R3#
R3#ping 2001:db8:beef:1::1
source loop 1 // VERIFY IPv6 CONNECTIIVTY TO R1 (ISP)
Type
escape sequence to abort.
Sending
5, 100-byte ICMP Echos to 2001:DB8:BEEF:1::1, timeout is 2 seconds:
Packet
sent with a source address of 2001:DB8:CAFE:3::1
!!!!!
Success
rate is 100 percent (5/5), round-trip min/avg/max = 36/40/48 ms
