ISL configurations

Task Command Example

Configuring an ISL port.

inter-switch-link

switch(config)# vsx

switch(config-vsx)# inter-switch-link lag 100

Deleting an ISL port.

no inter-switch-link

switch(config)# vsx

switch(config-vsx)# no inter-switch-link

Configuring ISL dead interval.

inter-switch-link dead-interval <DEAD-INTERVAL>

switch(config)# vsx

switch(config-vsx)# inter-switch-link dead-interval 10

Restore default ISL dead interval.

no inter-switch-link dead-interval

switch(config)# vsx

switch(config-vsx)# no inter-switch-link dead-interval

Configuring the ISL hello interval.

inter-switch-link hello-interval <HELLO-INTERVAL>

switch(config)# vsx

switch(config-vsx)# inter-switch-link hello-interval 3

Restoring default ISL hello interval.

no inter-switch-link hello-interval

switch(config)# vsx

switch(config-vsx)# no inter-switch-link hello-interval

Configuring ISL holdtime.

inter-switch-link hold-time <HOLD-INTERVAL>

switch(config)# vsx

switch(config-vsx)# inter-switch-link hold-time 2

Restoring default ISL holdtime.

no inter-switch-link hold-time

switch(config)# vsx

switch(config-vsx)# no inter-switch-link hold-time

Default values:
  • Dead interval: 20 seconds

  • Hello interval: 1 second

  • Hold time: 0 seconds