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VSS' Issue for Catalyst 6880-X-LE

wangchunhao20001
Beginner
Beginner

Hi there,

I met an issue regarding VSS established on Catalyst 6880-X-LE, please give me any suggestions or comments you have. I appreciate that. 

Here is my scenario and configuration as below:

2*Catalyst 6880 are running IOS (c6880x-adventerprisek9_npe-mz.SPA.151-2.SY6.bin) and connect to each other through 2 10 Gigabit Ethernet Ports on both supervisors. 

C6880-1:

switch virtual domain 10

switch 1

interface Port-Channel 1

switch virtual link 1

no shut

interface range tengiabitEthernet 5/1-2

channel-group 1 mode on

no shut

Interfaces and Port-Channels are up.

"show switch virtual", then exports:

Standalone Not in Virtual Switch mode due to: Domain ID is configured but SWITCH_NUMBER is not set. This implies an incomplete or failed Virtual Switch conversion process.

Then, tried the commands: “switch set switch_num 1” under the "Privileged Exec mode" according to Cisco's document suggestion for the new supervisor . 

http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Campus/VSS30dg/campusVSS_DG/VSS-dg_ch2.html

"show switch virtual"  again, then export:  Switch Mode : Standalone  Not in Virtual Switch mode due to:   Domain ID is configured. This implies an incomplete or failed Virtual Switch conversion process.

C6880-2:

switch virtual domain 10

switch 2

 

interface Port-Channel 2

switch virtual link 2

no shut

 

interface range tengiabitEthernet 5/1-2

channel-group 2 mode on

no shut

show switch virtual 

The same exports as C6880-1 did. 

Thanks,

Bob

1 ACCEPTED SOLUTION

Accepted Solutions

Step :1 VSS domain(1) and switch number(2)
 
·         The virtual domain ID must be same in both the VSS peers. However, this number should be unique in the site. Else, it may create some issues.
·         The switch number should be different in both VSS peers (as expected. Only 1-2 are available).
 
Switch(config)#switch virtual domain ?
  <1-255>  Virtual switch domain number
 
Switch(config)#switch virtual domain 10
Domain ID 10 config will take effect only
after the exec command 'switch convert mode virtual' is issued
 
Switch(config-vs-domain)#switch 1
 
Note: similarly “switch virtual domain 10” and “switch 2” on switch 2
 

Step:2 create the VSL port-channel(3) and specify the switch #(4)
 
The order of operation should be strictly followed. Else, it will not form properly. Pay close attention to the commands we use here.
 
switch(config)#int po1
Switch(config-if)#switch virtual link ?
  <1-2>  switch number
 
Switch(config-if)#switch virtual link 1
Switch(config-if)#no shut
*Apr  8 06:24:01.200: %SPANTREE-6-PORTDEL_ALL_VLANS: Port-channel1 deleted from all Vlans
 
Note: similarly on switch 2. But, make sure you choose a different port-channel number. Because, once the switches are merged, you will see both port-channels on the same switch. So, it is mandatory to choose a different number for switch 2.
 
So, for switch 2, choose po2. (also make sure the numbers are not used in the switch for any other port-channels).
 

Step:3 VSL port configuration(5)
 
Switch(config)#int range te1/3 - 4
Switch(config-if-range)#channel-group 1 mode on
Switch(config-if-range)# no shut

tep:4 the last blow
 
 
Switch#switch convert mode virtual
 
This command will convert all interface names
to naming convention "interface-type switch-number/slot/port",
save the running config to startup-config and
reload the switch.
Do you want to proceed? [yes/no]: y
Converting interface names
Building configuration...
Compressed configuration from 11345 bytes to 5366 bytes[OK]
Saving converted configuration to bootflash: ...
Destination filename [startup-config.converted_vs-20140408-064352]?
11345 bytes copied in 0.148 secs (76655 bytes/sec)
Rebooting the switch
 

And reboot both the switches.. your VSS is UP..

View solution in original post

6 REPLIES 6

Furose M
Participant
Participant

Did you reload after the configuration?

did you also use "switch convert mode virtual" command? This is the command that converts the standalone switch to VSS switch. you will have to reload after this command.

Hi Furose,

Thanks for your prompt response. Neither reloading nor "switch convert mode virtual" has been done. Is that necessary for doing those configurations ? Because I didn't see that on the Cisco document.

http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Campus/VSS30dg/campusVSS_DG/VSS-dg_ch2.html

Thanks,

Bob

Yes. "switch convert mode virtual" is the important command to be used during the conversion process.

i will check the doc and initiate a correction. thanks.

Step :1 VSS domain(1) and switch number(2)
 
·         The virtual domain ID must be same in both the VSS peers. However, this number should be unique in the site. Else, it may create some issues.
·         The switch number should be different in both VSS peers (as expected. Only 1-2 are available).
 
Switch(config)#switch virtual domain ?
  <1-255>  Virtual switch domain number
 
Switch(config)#switch virtual domain 10
Domain ID 10 config will take effect only
after the exec command 'switch convert mode virtual' is issued
 
Switch(config-vs-domain)#switch 1
 
Note: similarly “switch virtual domain 10” and “switch 2” on switch 2
 

Step:2 create the VSL port-channel(3) and specify the switch #(4)
 
The order of operation should be strictly followed. Else, it will not form properly. Pay close attention to the commands we use here.
 
switch(config)#int po1
Switch(config-if)#switch virtual link ?
  <1-2>  switch number
 
Switch(config-if)#switch virtual link 1
Switch(config-if)#no shut
*Apr  8 06:24:01.200: %SPANTREE-6-PORTDEL_ALL_VLANS: Port-channel1 deleted from all Vlans
 
Note: similarly on switch 2. But, make sure you choose a different port-channel number. Because, once the switches are merged, you will see both port-channels on the same switch. So, it is mandatory to choose a different number for switch 2.
 
So, for switch 2, choose po2. (also make sure the numbers are not used in the switch for any other port-channels).
 

Step:3 VSL port configuration(5)
 
Switch(config)#int range te1/3 - 4
Switch(config-if-range)#channel-group 1 mode on
Switch(config-if-range)# no shut

tep:4 the last blow
 
 
Switch#switch convert mode virtual
 
This command will convert all interface names
to naming convention "interface-type switch-number/slot/port",
save the running config to startup-config and
reload the switch.
Do you want to proceed? [yes/no]: y
Converting interface names
Building configuration...
Compressed configuration from 11345 bytes to 5366 bytes[OK]
Saving converted configuration to bootflash: ...
Destination filename [startup-config.converted_vs-20140408-064352]?
11345 bytes copied in 0.148 secs (76655 bytes/sec)
Rebooting the switch
 

And reboot both the switches.. your VSS is UP..

Will try that tomorrow and keep you posted. Thanks for your advice, I appreciate it:)

BR

Bob

VSS is up through "switch convert mode virtual" and " reload". Thanks Furose:)

My apology for the late feedback. 

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