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Replacement Cisco Switch 4500 on VSS Cluster

milhouse
Level 1
Level 1

I have 2 Cisco Catalyst Switch 4500, i needed remove one from cluster for an RMA e now i need to add the new switch, but when i removeed the old from cluster the configuration on active switch change:

Configuration when both switch were on cluster:

switch virtual domain 20
switch mode virtual
mac-address use-virtual

redundancy
mode sso

!

module provision switch 1
chassis-type 70 base-mac XXXX.XXXX.XXXX
slot 1 slot-type 401 base-mac XXXX.XXXX.XXXX
slot 2 slot-type 400 base-mac YYYY.YYYY.YYYY
!
module provision switch 2
chassis-type 70 base-mac AAAA.AAAA.AAAA
slot 1 slot-type 401 base-mac AAAA.AAAA.AAAA
slot 2 slot-type 400 base-mac BBBB.BBBB.BBBB

Configuration on active switch after remove the standby switch on cluster:

switch virtual domain 20
switch mode virtual - was removed
mac-address use-virtual

!

redundancy - was removed
mode sso - was removed

!

module provision switch 1 - was removed
chassis-type 70 base-mac XXXX.XXXX.XXXX
slot 1 slot-type 401 base-mac XXXX.XXXX.XXXX
slot 2 slot-type 400 base-mac YYYY.YYYY.YYYY
!
module provision switch 2 - was removed
chassis-type 70 base-mac AAAA.AAAA.AAAA
slot 1 slot-type 401 base-mac AAAA.AAAA.AAAA
slot 2 slot-type 400 base-mac BBBB.BBBB.BBBB

So, my ask is, i need perform the comands again on switch active and convert again the switch for VSS mode before insert the new switch on cluster ? If yes, all configuration on switch in production is erased after i perform the comand "convert mode virtual"? Or i need only configure the new switch and convert him, so insert on cluster?

Below the show switch virtual on active switch at moment without the new switch yet:

sh switch virtual Switch Mode : Standalone Not in Virtual Switch mode due to: Domain ID is configured This implies an incomplete or failed Virtual Switch conversion process.

 

 

1 Reply 1

@milhouse 

You Just need to setup the New switch in virtual mode and Join. There Will be down time as both switch Will reload. 

There is a document for VSS replacement

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-4500-series-switches/117640-configure-vss-00.html 

 

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