I was asked to stack some few Cisco 2960S switches for a site.
You can stack 2 or more switches (depending on the switch platform) using the Cisco FlexStack module and cable. The StackWise technology is used by Cisco 3750 switches.
Switch(config)#switch ?
<1-4> Switch Number // 2960S CAN STACK UP TO 4 SWITCHES
Switch(config)#switch 1 ?
priority Set the priority of the specified switch
provision Configure Switch provision / offline config
renumber Renumber the specified switch number
Switch(config)#switch 1 priority ?
<1-15> Switch Priority
Switch(config)#switch 1 priority 15
Changing the Switch Priority of Switch Number 1 to 15
Do you want to continue?[confirm]
New Priority has been set successfully
Switch(config)#switch 2 priority 12
There is no switch number 2 in the stack // CAN ONLY ACTIVATE THIS COMMAND ONCE FLEXSTACK MODULE/CABLE IS CONNECTED
Switch(config)#switch 3 priority 10
There is no switch number 3 in the stack
Switch(config)#switch 2 priority 12
Changing the Switch Priority of Switch Number 2 to 12
Do you want to continue?[confirm]
New Priority has been set successfully
Switch(config)#switch 3 priority 10
Changing the Switch Priority of Switch Number 3 to 10
Do you want to continue?[confirm]
New Priority has been set successfully
You can pre-configure ports on member switches using the switch x provision y command. You can stack a Cisco 2960S 24-port together with a 48-port switch.
I needed this command since the VLANs and ports on our 2960S switches were already configured. Once stacking is done and switches are rebooted, our VLAN 1 management IP address on member switches were gone. The config on the master switch remained intact.
Switch(config)#switch 2 provision ?
ws-c2960s-24pd-l provision a Catalyst 2960s switch with 24GPwr+2SFP+ interfaces
ws-c2960s-24ps-l provision a Catalyst 2960s switch with 24GPwr+4SFP interfaces
ws-c2960s-24td-l provision a Catalyst 2960s switch with 24G+2SFP+ interfaces
ws-c2960s-24ts-l provision a Catalyst 2960s switch with 24G+4SFP interfaces
ws-c2960s-24ts-s provision a Catalyst 2960s switch with 24G+2SFP interfaces
ws-c2960s-48fpd-l provision a Catalyst 2960s switch with 48GPwr+2SFP+ interfaces
ws-c2960s-48fps-l provision a Catalyst 2960s switch with 48GPwr+4SFP interfaces
ws-c2960s-48lpd-l provision a Catalyst 2960s switch with 48GPwr+2SFP+ interfaces
ws-c2960s-48lps-l provision a Catalyst 2960s switch with 48GPwr+4SFP interfaces
ws-c2960s-48td-l provision a Catalyst 2960s switch with 48G+2SFP+ interfaces
ws-c2960s-48ts-l provision a Catalyst 2960s switch with 48G+4SFP interfaces
ws-c2960s-48ts-s provision a Catalyst 2960s switch with 48G+2SFP interfaces
Switch(config)#switch 2 provision ws-c2960s-24ps-l
Switch(config)#interface range GigabitEthernet2/0/1-24 // SWITCH 2; TAKE NOTE OF THE MODULE NUMBER (IN BOLD)
Switch(config-if)#switchport access vlan 110
Switch(config-if)#switchport mode access
Switch(config-if)#spanning-tree portfast
Switch(config)#switch 3 provision ws-c2960s-24ps-l
Switch(config)#interface range GigabitEthernet3/0/1-24 // SWITCH 3
Switch(config-if)#switchport access vlan 110
Switch(config-if)#switchport mode access
Switch(config-if)#spanning-tree portfast
Here are some useful show commands:
Switch#show switch ?
<1-4> Switch Number
detail show detailed information about the stack ring
neighbors show each switch's neighbors
stack-ports show the status of the stack ports
stack-ring show stack ring
| Output modifiers
<cr>
Switch#show switch detail
Switch/Stack Mac Address : 6c9c.ed9d.g200
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 6c9c.ed9d.g200 15 1 Ready // BOOT UP MASTER SWITCH FIRST AND THEN BOOT UP MEMBER SWITCHES ACCORDINGLY
2 Member 6c9c.edc2.4300 12 1 Ready
3 Member 2c36.f85e.6e00 10 1 Ready
Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Ok Ok 2 3
2 Ok Ok 1 3
3 Ok Ok 2 1
Switch#show switch neighbor
Switch # Port 1 Port 2
-------- ------ ------
1 2 3
2 1 3
3 2 1
Switch#show switch stack-ports
Switch # Port 1 Port 2
-------- ------ ------
1 Ok Ok
2 Ok Ok
3 Ok Ok
Switch#show switch stack-ring ?
activity show stack ring activity
speed show stack ring speed
Switch#show switch stack-ring speed
Stack Ring Speed : 10G // AGGREGATED BACKPLANE BANDWIDTH
Stack Ring Configuration: Full
Stack Ring Protocol : FlexStack // YOU'LL SEE STACKWISE ON 3750
Switch#show switch
Switch/Stack Mac Address : 6c9c.ed9d.g200
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 6c9c.ed9d.g200 15 1 Ready
2 Member 6c9c.edc2.4300 12 1 Ready
3 Member 2c36.f85e.6e00 10 1 Ready
Switch#show switch stack-port
Switch # Port 1 Port 2
-------- ------ ------
1 Ok Ok
2 Ok Ok
3 Ok Ok
Switch#show switch detail
Switch/Stack Mac Address : 6c9c.ed9d.g200
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 6c9c.ed9d.g200 15 1 Ready
2 Member 6c9c.edc2.4300 12 1 Ready
3 Member 2c36.f85e.6e00 10 1 Ready
Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Ok Ok 2 3
2 Ok Ok 1 3
3 Ok Ok 2 1
You can stack 2 or more switches (depending on the switch platform) using the Cisco FlexStack module and cable. The StackWise technology is used by Cisco 3750 switches.
Switch(config)#switch ?
<1-4> Switch Number // 2960S CAN STACK UP TO 4 SWITCHES
Switch(config)#switch 1 ?
priority Set the priority of the specified switch
provision Configure Switch provision / offline config
renumber Renumber the specified switch number
Switch(config)#switch 1 priority ?
<1-15> Switch Priority
Switch(config)#switch 1 priority 15
Changing the Switch Priority of Switch Number 1 to 15
Do you want to continue?[confirm]
New Priority has been set successfully
Switch(config)#switch 2 priority 12
There is no switch number 2 in the stack // CAN ONLY ACTIVATE THIS COMMAND ONCE FLEXSTACK MODULE/CABLE IS CONNECTED
Switch(config)#switch 3 priority 10
There is no switch number 3 in the stack
Switch(config)#switch 2 priority 12
Changing the Switch Priority of Switch Number 2 to 12
Do you want to continue?[confirm]
New Priority has been set successfully
Switch(config)#switch 3 priority 10
Changing the Switch Priority of Switch Number 3 to 10
Do you want to continue?[confirm]
New Priority has been set successfully
You can pre-configure ports on member switches using the switch x provision y command. You can stack a Cisco 2960S 24-port together with a 48-port switch.
I needed this command since the VLANs and ports on our 2960S switches were already configured. Once stacking is done and switches are rebooted, our VLAN 1 management IP address on member switches were gone. The config on the master switch remained intact.
Switch(config)#switch 2 provision ?
ws-c2960s-24pd-l provision a Catalyst 2960s switch with 24GPwr+2SFP+ interfaces
ws-c2960s-24ps-l provision a Catalyst 2960s switch with 24GPwr+4SFP interfaces
ws-c2960s-24td-l provision a Catalyst 2960s switch with 24G+2SFP+ interfaces
ws-c2960s-24ts-l provision a Catalyst 2960s switch with 24G+4SFP interfaces
ws-c2960s-24ts-s provision a Catalyst 2960s switch with 24G+2SFP interfaces
ws-c2960s-48fpd-l provision a Catalyst 2960s switch with 48GPwr+2SFP+ interfaces
ws-c2960s-48fps-l provision a Catalyst 2960s switch with 48GPwr+4SFP interfaces
ws-c2960s-48lpd-l provision a Catalyst 2960s switch with 48GPwr+2SFP+ interfaces
ws-c2960s-48lps-l provision a Catalyst 2960s switch with 48GPwr+4SFP interfaces
ws-c2960s-48td-l provision a Catalyst 2960s switch with 48G+2SFP+ interfaces
ws-c2960s-48ts-l provision a Catalyst 2960s switch with 48G+4SFP interfaces
ws-c2960s-48ts-s provision a Catalyst 2960s switch with 48G+2SFP interfaces
Switch(config)#switch 2 provision ws-c2960s-24ps-l
Switch(config)#interface range GigabitEthernet2/0/1-24 // SWITCH 2; TAKE NOTE OF THE MODULE NUMBER (IN BOLD)
Switch(config-if)#switchport access vlan 110
Switch(config-if)#switchport mode access
Switch(config-if)#spanning-tree portfast
Switch(config)#switch 3 provision ws-c2960s-24ps-l
Switch(config)#interface range GigabitEthernet3/0/1-24 // SWITCH 3
Switch(config-if)#switchport access vlan 110
Switch(config-if)#switchport mode access
Switch(config-if)#spanning-tree portfast
Here are some useful show commands:
Switch#show switch ?
<1-4> Switch Number
detail show detailed information about the stack ring
neighbors show each switch's neighbors
stack-ports show the status of the stack ports
stack-ring show stack ring
| Output modifiers
<cr>
Switch#show switch detail
Switch/Stack Mac Address : 6c9c.ed9d.g200
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 6c9c.ed9d.g200 15 1 Ready // BOOT UP MASTER SWITCH FIRST AND THEN BOOT UP MEMBER SWITCHES ACCORDINGLY
2 Member 6c9c.edc2.4300 12 1 Ready
3 Member 2c36.f85e.6e00 10 1 Ready
Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Ok Ok 2 3
2 Ok Ok 1 3
3 Ok Ok 2 1
Switch#show switch neighbor
Switch # Port 1 Port 2
-------- ------ ------
1 2 3
2 1 3
3 2 1
Switch#show switch stack-ports
Switch # Port 1 Port 2
-------- ------ ------
1 Ok Ok
2 Ok Ok
3 Ok Ok
Switch#show switch stack-ring ?
activity show stack ring activity
speed show stack ring speed
Switch#show switch stack-ring speed
Stack Ring Speed : 10G // AGGREGATED BACKPLANE BANDWIDTH
Stack Ring Configuration: Full
Stack Ring Protocol : FlexStack // YOU'LL SEE STACKWISE ON 3750
Switch#show switch
Switch/Stack Mac Address : 6c9c.ed9d.g200
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 6c9c.ed9d.g200 15 1 Ready
2 Member 6c9c.edc2.4300 12 1 Ready
3 Member 2c36.f85e.6e00 10 1 Ready
Switch#show switch stack-port
Switch # Port 1 Port 2
-------- ------ ------
1 Ok Ok
2 Ok Ok
3 Ok Ok
Switch#show switch detail
Switch/Stack Mac Address : 6c9c.ed9d.g200
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 6c9c.ed9d.g200 15 1 Ready
2 Member 6c9c.edc2.4300 12 1 Ready
3 Member 2c36.f85e.6e00 10 1 Ready
Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Ok Ok 2 3
2 Ok Ok 1 3
3 Ok Ok 2 1
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