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johnsmunoz
Beginner

Stack ring went to half. Replaced Stackwise cable but still only half.

Over the weekend we got an alert that one of our stacks when to half.  The break appeared to be between switch 5 & 7.  The cable didn't appear to be loose or damaged but I replaced it anyway.  Made sure it was tight and snug.  I'm still showing that the connection is down.  Is there anything special that needs to be done prior to the link coming back up?

 Screen Shot 2018-08-06 at 8.33.27 AM.png

 

Stack-1#show switch
Switch/Stack Mac Address : c464.13f8.2000
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
1 Member 70ca.9b02.0880 1 1 Ready
2 Member 0007.7db4.3b80 1 1 Ready
3 Member f0f7.550b.bd00 10 1 Ready
*4 Master c464.13f8.2000 10 1 Ready
5 Member f0f7.553c.db80 1 1 Ready
6 Member ccef.4823.3a80 1 1 Ready
7 Member 1cdf.0f4f.4b80 2 1 Ready

 

Stack-1#show switch detail
Switch/Stack Mac Address : c464.13f8.2000
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
1 Member 70ca.9b02.0880 1 1 Ready
2 Member 0007.7db4.3b80 1 1 Ready
3 Member f0f7.550b.bd00 10 1 Ready
*4 Master c464.13f8.2000 10 1 Ready
5 Member f0f7.553c.db80 1 1 Ready
6 Member ccef.4823.3a80 1 1 Ready
7 Member 1cdf.0f4f.4b80 2 1 Ready

 

Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Ok Ok 3 2
2 Ok Ok 1 4
3 Ok Ok 5 1
4 Ok Ok 2 6
5 Down Ok None 3
6 Ok Ok 4 7
7 Ok Down 6 None

 

Stack-1#show switch stack-ring speed

Stack Ring Speed : 16G
Stack Ring Configuration: Half
Stack Ring Protocol : StackWisePlus

 

 

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
1 54 WS-C3750X-48P 12.2(58)SE2 C3750E-UNIVERSALK9-M
2 54 WS-C3750X-48P 12.2(58)SE2 C3750E-UNIVERSALK9-M
3 54 WS-C3750X-48 12.2(58)SE2 C3750E-UNIVERSALK9-M
* 4 54 WS-C3750X-48 12.2(58)SE2 C3750E-UNIVERSALK9-M
5 54 WS-C3750X-48P 12.2(58)SE2 C3750E-UNIVERSALK9-M
6 54 WS-C3750X-48P 12.2(58)SE2 C3750E-UNIVERSALK9-M
7 54 WS-C3750X-48P 12.2(58)SE2 C3750E-UNIVERSALK9-M

2 REPLIES 2
Reza Sharifi
Hall of Fame Expert

I have seen this happening out of nowhere in the past. I recommend you open a ticket with Cisco TAC.  I think most of the time a reboot will fix it, if not TAC most likely recommend an upgrade.

 

HTH

Leo Laohoo
VIP Community Legend

Whao, 12.2(58)SE2!
That's one buggy IOS, right there! Should've been taken out to the back and shot.