11 Posts

July 22nd, 2014 07:00

Hello Josh,

                    It turned that the stacking module in the Core switch was bad.  We ordered another one swapped and I got  up/ up

TX1-CORE-SW-STK01#show stack-port

                     Configured  Running

                       Stack      Stack      Link       Link

Unit    Interface       Mode       Mode       Status     Speed (Gb/s)

---- ---------------- ---------- ---------- ------------ ------------

1    xg1              Stack      Stack      Link Up      12

1    xg2              Stack      Stack      Link Up      12

1    xg3              Ethernet   Ethernet   Link Down    Unknown

1    xg4              Ethernet   Ethernet   Link Down    Unknown

2    xg1              Stack      Stack      Link Up      12

2    xg2              Stack      Stack      Link Up      12

2    xg3              Ethernet   Ethernet   Link Down    Unknown

2    xg4              Ethernet   Ethernet   Link Down    Unknown

TX1-CORE-SW-STK01#

Thanks for all your help.

Moderator

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9.5K Posts

July 14th, 2014 17:00

Hi Mike,

Was the port working previously? Was the module installed with the switch off? What is the output of show stack-port diag? If you select the port and do no shutdown does it come up?

11 Posts

July 15th, 2014 07:00

Hello  Josh,

                       Yes we had both switches off when we installed the modules and cables. we never noticed that one side wasn't working till the other day when I found the command  #[tag:show] stack-port

TX1-CORE-SW-STK01[tag:show] stack-port diag

Legend:

RBYT : Received Bytes                         RPKT : Received Packets

TBYT : Transmitted Bytes                      TPKT : Transmitted Packets

RFCS : Received Frame Check Sequence Errors   RFRG : Received Fragment Errors

RJBR : Received Jabber Errors

RUND : Received Underrun Errors               ROVR : Received Overrun Errors

TFCS : Transmit Frame Check Sequence Errors   TERR : Transmit Errors

1 - xg1:

RBYT:0 RPKT:0 TBYT:0 TPKT:0

RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0

TFCS:0 TERR:0

1 - xg2:

RBYT:b068fd20 RPKT:4848101 TBYT:719dfc32 TPKT:bd44c2b

RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0

TFCS:0 TERR:0

2 - xg1:

RBYT:715dd8a2 RPKT:bd43e98 TBYT:b06750de TPKT:4847b93

RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0

--More-- or (q)uit

TFCS:0 TERR:0

2 - xg2:

RBYT:0 RPKT:0 TBYT:0 TPKT:0

RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0

TFCS:0 TERR:0

TX1-CORE-SW-STK01#

Moderator

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9.5K Posts

July 15th, 2014 10:00

Are you able to schedule downtime? We will want to isolate the issue. Try XG2 to XG2 and XG1 to XG1 and see which one stops working. Then we can see which switch and port is causing the problem and try to power off and reseat that module. If that doesn’t work we would want to swap the modules between the switches and see if the error stays with the module or the switch.  

Moderator

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9.5K Posts

July 16th, 2014 10:00

Those commands were providing enough detail, so you don’t need to use any other ones, it was showing which ports were transmitting data.

11 Posts

July 16th, 2014 10:00

OK Josh,

         I will not be able to try these steps till production get caught up  ( hopefully tomorrow ) .  Is there any other commands I should try beside the ones I have used so far ?

#show stack-port

# show stack-port diag

Thanks Mike

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