There's a couple of default VRF configured on the Cisco Nexus switch: default and management. The management VRF will be used if the Nexus switch is configured with a static default route (a Layer 3 switch).
N5K# show
vrf
VRF-Name VRF-ID State Reason
default 1 Up --
management 2 Up --
N5K# configure terminal
Enter
configuration commands, one per line.
End with CNTL/Z.
N5K(config)#
logging ?
console Set console logging
event Interface events
history Modifies severity level or size for
history table
ip IP configuration
level Facility parameter for syslog
messages
logfile Set File logging
message Interface events
module Set module(linecard) logging
monitor Set terminal line(monitor) logging
level
origin-id Enable origin information for Remote
Syslog Server
persistent Set persistent logging
rate-limit Enables rate limit for log messages
server Enable forwarding to Remote Syslog
Server
source-interface Enable Source-Interface for Remote Syslog
Server
timestamp Set logging timestamp granularity
N5K(config)# logging origin-id ?
hostname Use hostname as origin-id of logging messages
ip Use ip address as origin-id of logging messages
string Use text string as origin-id of logging messages
N5K(config)# logging origin-id hostname // THIS WILL DISPLAY THE DEVICE HOSTNAME IN SYSLOG
hostname Use hostname as origin-id of logging messages
ip Use ip address as origin-id of logging messages
string Use text string as origin-id of logging messages
N5K(config)# logging origin-id hostname // THIS WILL DISPLAY THE DEVICE HOSTNAME IN SYSLOG
N5K(config)#
logging server ?
A.B.C.D|A:B::C:D|WORD Hostname/IPv4/IPv6 address of the Remote
Syslog Server
N5K(config)#
logging server 10.9.6.7 ?
<CR>
<0-7>
0-emerg;1-alert;2-crit;3-err;4-warn;5-notif;6-inform;7-debug
facility
Facility to use when forwarding to server
port
Destination Port when forwarding to remote server
use-vrf
Display per-VRF information
N5K(config)#
logging server 10.9.6.7 6 use-vrf ?
WORD
VRF name (Max Size 32)
default
Known VRF name
management
Known VRF name
N5K(config)#
logging server 10.9.6.7 6 use-vrf management
If you've configured Syslog with a wrong VRF, the show logging output will display an error "This
server is temporarily unreachable." Ensure the Syslog IP address is reachable on the configured VRF. Note the default Syslog severity level is 6 (information) and default UDP port 514.
N5K# show
logging
Logging
console: disabled
Logging
monitor: enabled
(Severity: notifications)
Logging
linecard: enabled
(Severity: notifications)
Logging
fex: enabled (Severity:
notifications)
Logging
timestamp: Seconds
Logging
source-interface : disabled
Logging server: enabled
{10.9.6.7}
server
severity: information
server facility: local7
server
VRF: management
server port: 514
Logging
origin_id : enabled (string:
N5K)
Logging
logflash: disabled
Logging
rate-limit: enabled
Logging
logfile: enabled
Name - messages: Severity -
notifications Size - 4194304
Logging
persistent : disabled (Reason:
Logflash CF card not online.)
N5K# ping
10.9.6.7 vrf management
PING
10.9.6.7 (10.9.6.7): 56 data bytes
64 bytes
from 10.9.6.7: icmp_seq=0 ttl=232 time=35.613 ms
64 bytes
from 10.9.6.7: icmp_seq=1 ttl=232 time=35.573 ms
64 bytes
from 10.9.6.7: icmp_seq=2 ttl=232 time=35.69 ms
64 bytes
from 10.9.6.7: icmp_seq=3 ttl=232 time=35.523 ms
64 bytes
from 10.9.6.7: icmp_seq=4 ttl=232 time=35.57 ms
---
10.9.6.7 ping statistics ---
5 packets
transmitted, 5 packets received, 0.00% packet loss
round-trip
min/avg/max = 35.523/35.593/35.69 ms
