Configure StackWise Virtual Switching between (2) 3850-48XS 10Gb switches
Some caveats about StackWise Virtual Switching:
When deploying StackWise Virtual, ensure that VLAN ID 4094 is not used anywhere on the network.
All inter-chassis system control communication between stack members is carried over the reserved VLAN ID 4094 from the global range.
• All the switches in Cisco StackWise Virtual solution must be of the same switch model.
• All the switches in Cisco StackWise Virtual solution must be running the same license level.
• All the switches in Cisco StackWise Virtual must be running the same software version.
Q. What are Cisco recommended best practices in building StackWise Virtual domain configuration?
A. Following are recommended Cisco StackWise Virtual best practices:
• StackWise Virtual domain ID: Use any range from 1 through 255. No conflict in network.
• Switch ID: Supported range is 1 through 9. Renumber if needed to start in ascending number.
• Switch priority: Default is 1. Recommended to increase priority for specific stack member if prefer to boot up in ACTIVE role.
• Stack MAC address: Default is infinite. Recommended to keep default settings
Configure Switch 1
en
conf t
Device(config)#stackwise-virtual
Device(config-stackwise-virtual)#domain 1
Create the stackwise virtual links (SVL's)
Device(config)#inter ten 1/0/47
Switch(config-if)#description ***STACKWISE_VIRTUAL_LINK***
Device(config-if)#stackwise-virtual link 1
Device(config)#inter ten 1/0/48
Switch(config-if)#description ***STACKWISE_VIRTUAL_LINK***
Device(config-if)#stackwise-virtual link 1
Create the "dual-active-detection link"
Device(config)#inter ten 1/0/46
Switch(config-if)#description ***DUAL_ACTIVE_DETECTION_LINK***
Device(config-if)#stackwise-virtual dual-active-detection
end
wr
Do the same for switch 2:
en
conf t
Device(config)#stackwise-virtual
Device(config-stackwise-virtual)#domain 1
Create the stackwise virtual links (SVL's)
Device(config)#inter ten 1/0/47
Switch(config-if)#description ***STACKWISE_VIRTUAL_LINK***
Device(config-if)#stackwise-virtual link 1
Device(config)#inter ten 1/0/48
Switch(config-if)#description ***STACKWISE_VIRTUAL_LINK***
Device(config-if)#stackwise-virtual link 1
Create the "dual-active-detection link"
Device(config)#inter ten 1/0/46
Switch(config-if)#description ***DUAL_ACTIVE_DETECTION_LINK***
Device(config-if)#stackwise-virtual dual-active-detection
end
wr
After the cables are connected and the switches are rebooted:
Switch#show stackwise-virtual
Stackwise Virtual Configuration:
--------------------------------
Stackwise Virtual : Enabled
Domain Number : 1
Switch Stackwise Virtual Link Ports
------ ---------------------- ------
1 1 TenGigabitEthernet1/0/47
TenGigabitEthernet1/0/48
2 1 TenGigabitEthernet2/0/47
TenGigabitEthernet2/0/48
Switch#sh run inter ten 1/0/46
Building configuration...
Current configuration : 129 bytes
!
interface TenGigabitEthernet1/0/46
stackwise-virtual dual-active-detection
description ***DUAL_ACTIVE_DETECTION_LINK***
end
Switch#sh run inter ten 2/0/46
Building configuration...
Current configuration : 83 bytes
!
interface TenGigabitEthernet2/0/46
stackwise-virtual dual-active-detection
end
Switch#
When deploying StackWise Virtual, ensure that VLAN ID 4094 is not used anywhere on the network.
All inter-chassis system control communication between stack members is carried over the reserved VLAN ID 4094 from the global range.
• All the switches in Cisco StackWise Virtual solution must be of the same switch model.
• All the switches in Cisco StackWise Virtual solution must be running the same license level.
• All the switches in Cisco StackWise Virtual must be running the same software version.
Q. What are Cisco recommended best practices in building StackWise Virtual domain configuration?
A. Following are recommended Cisco StackWise Virtual best practices:
• StackWise Virtual domain ID: Use any range from 1 through 255. No conflict in network.
• Switch ID: Supported range is 1 through 9. Renumber if needed to start in ascending number.
• Switch priority: Default is 1. Recommended to increase priority for specific stack member if prefer to boot up in ACTIVE role.
• Stack MAC address: Default is infinite. Recommended to keep default settings
Configure Switch 1
en
conf t
Device(config)#stackwise-virtual
Device(config-stackwise-virtual)#domain 1
Create the stackwise virtual links (SVL's)
Device(config)#inter ten 1/0/47
Switch(config-if)#description ***STACKWISE_VIRTUAL_LINK***
Device(config-if)#stackwise-virtual link 1
Device(config)#inter ten 1/0/48
Switch(config-if)#description ***STACKWISE_VIRTUAL_LINK***
Device(config-if)#stackwise-virtual link 1
Create the "dual-active-detection link"
Device(config)#inter ten 1/0/46
Switch(config-if)#description ***DUAL_ACTIVE_DETECTION_LINK***
Device(config-if)#stackwise-virtual dual-active-detection
end
wr
Do the same for switch 2:
en
conf t
Device(config)#stackwise-virtual
Device(config-stackwise-virtual)#domain 1
Create the stackwise virtual links (SVL's)
Device(config)#inter ten 1/0/47
Switch(config-if)#description ***STACKWISE_VIRTUAL_LINK***
Device(config-if)#stackwise-virtual link 1
Device(config)#inter ten 1/0/48
Switch(config-if)#description ***STACKWISE_VIRTUAL_LINK***
Device(config-if)#stackwise-virtual link 1
Create the "dual-active-detection link"
Device(config)#inter ten 1/0/46
Switch(config-if)#description ***DUAL_ACTIVE_DETECTION_LINK***
Device(config-if)#stackwise-virtual dual-active-detection
end
wr
After the cables are connected and the switches are rebooted:
Switch#show stackwise-virtual
Stackwise Virtual Configuration:
--------------------------------
Stackwise Virtual : Enabled
Domain Number : 1
Switch Stackwise Virtual Link Ports
------ ---------------------- ------
1 1 TenGigabitEthernet1/0/47
TenGigabitEthernet1/0/48
2 1 TenGigabitEthernet2/0/47
TenGigabitEthernet2/0/48
Switch#sh run inter ten 1/0/46
Building configuration...
Current configuration : 129 bytes
!
interface TenGigabitEthernet1/0/46
stackwise-virtual dual-active-detection
description ***DUAL_ACTIVE_DETECTION_LINK***
end
Switch#sh run inter ten 2/0/46
Building configuration...
Current configuration : 83 bytes
!
interface TenGigabitEthernet2/0/46
stackwise-virtual dual-active-detection
end
Switch#