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xshant
Beginner

VSS Issue

I did the following config for VSS:

Core 1:

switch virtual domain 1

switch 1

switch 1 priority 110

switch 2 priority 100

interface port-channel 71

switch virtual link 1 no shut

interface range tenGigabitEthernet 5/4 – 5

channel-group 177 mode on 

no shut

Core 2:

switch virtual domain 1

switch 2

switch 1 priority 110

switch 2 priority 100

interface port-channel 72

switch virtual link 1

no shut

interface range tenGigabitEthernet 5/4 – 5

channel-group 177 mode on

no shut

When i put the following on both core switches:

switch convert mode virtual

they got restarted and on Core 1 i got this message:

Jun 29 01:25:30.363: %PFREDUN-6-ACTIVE: Initializing as ACTIVE processor for this switch

*Jun 29 01:25:31.107: %VSLP-5-RRP_NO_PEER: No VSLP peer found. Resolving role as Active

*Jun 29 01:25:31.739: %VSLP-2-VSL_DOWN:  VSL links down and not ready for any traffic

*Jun 29 01:25:32.743: %OIR-SW1_SP-6-CONSOLE: Changing console ownership to route processor

Both the core switches interfaces got re-numbered but they did not become VSS and were working as independent. What could be the problem?

After reboot the port-channel 177 was up also.

Even i put this command "switch accept mode virtual" but no luck.

(s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(33)SXI9 VS-S720-10G

Thanks, Aamir

7 REPLIES 7
Sandeep Choudhary
VIP Mentor

HI Amir can you paste the output of this command:

*show redundancy*

is this command shows the harware mode = Simplex mode ????

Regards

Please rate if it help.

xshant
Beginner

Dear, Since it was a live environment i had to roll it back to normal mode, however i remember doing "show redundancy" and it was showing me only one active processor. Dont remember if it was showing Simplex mode or not? But incase if it does show Simplex mode even after VSS configuration what does that mean? And what else could have gone wrong? Thanks, Aamir

if it showes simplex mode then please configure like this:

Core 1:


switch virtual domain 1
switch 1
switch 1 priority 110
mac-address use-virtual


interface port-channel 71
switch virtual link 1
no shut


interface range tenGigabitEthernet 5/4 – 5
channel-group 71 mode on 
no shut



Core 2:


Redundancy
mode sso


switch virtual domain 1
switch 2
switch 2 priority 100
mac-address use-virtual


interface port-channel 72
switch virtual link 2
no shut


interface range tenGigabitEthernet 5/4 – 5
channel-group 72 mode on
no shut

just check if the port channel group is right or not ......

Regards

Please rate if it helps.

Dear, yes i also realize that port channel number should be same under the TenGig interface, i guess i made a type error. Also i need to ask in a state where the port channel was configured wrong and switches are in VSS state that is their interface are re-numbered, would changing the port channel and restarting the switches solve the problem or i would have to first convert them in stand alone mode and then do VSS config all over again? Thanks, Aamir

Hi xSHANT,

Change the port channel  and other config as above and restart the switch..it shouold solve the problem.

if not then ...you have to beign with scratch.

Regards

Please rate if it helps.

vaib7av.shirkul
Beginner

Hi,

check below configuration

sw1(config)#redundancy

sw1(config-red)#mode sso

sw2(config)#redundancy

sw2(config-red)#mode sso

sw1(config)#switch virtual domain 100

sw1(config-vs-domain)#switch 1

sw1(config-vs-domain)#exit

sw2(config)#switch virtual domain 100

sw2(config-vs-domain)#switch 2

sw2(config-vs-domain)#exit

Sw1(config)#interface port-channel 10

Sw1(config-if)#switch virtual link 1

Sw1(config-if)#no shut

Sw2(config)#interface port-channel 20

Sw2(config-if)#switch virtual link 2

Sw2(config-if)#no shut

sw1(config)#interface range ten 3/1-2

sw1(config-if)#channel-group 10 mode on

sw1(config-if)#no shu

sw2(config)#interface range ten 3/1-2

sw2(config-if)#channel-group 20 mode on

sw2(config-if)#no shu

Sw1#switch convert mode virtual

Sw2#switch convert mode virtual

To verify,

show switch virtual

show switch virtual link

shwo switch virtual role

for more information

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/vss.html

HTH

Check the Port-channel Number is not same on both the side, if it's same I would suggest to have different number on both the side and reboot the device, I hope that will solve issue.