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issue after a faulty config of a port-channel

I have seen a 

type switch C5548UP
cisco nexus 5K version software System version: 7.1(4)N1(1)

@port-channels
------------------------------------------------------------

this must be the command:
int eth 1/21-22
channel-group 22 mode active
int eth 1/23-24
channel-group 23 mode active

this command is executed
int eth 1/21-22
channel-group 22 mode active
int eth 1/23-4
channel-group 23 mode active

Error given To many interfaces for port channel
in mean time all port-channels from interfaces 1/4-23 are removed
1/4 1 uplink pear link
1/5-8 Po105 ( fex 105 where all impacted servers where on)
1/21-22 Po 22 Removed again but nothing is here impacted
1/23-24 Po 23 Not configured

---------------------------------------------
unexpected behaviors due to config issues
1) active port-channels are removed
2) ethernet countdown eth 1/23-4 (I expect to give error because last port is lower)

does the nexus 5K react the same in newer software versions?

3 Replies 3

balaji.bandi
Hall of Fame
Hall of Fame

when you adding more interface config, you need to check is the command effected  ( check individual interface is the configuration there) before bring up port-channel, if not you have Loop in the network since ports are standalone mode.

 

maximum only 8 ports per port-channel you can not have 4-23 in PO

 

BB

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Hi,
On Nexus switches you don't have int range:
swcarnexlab2(config)# int
breakout ethernet loopback mgmt port-channel vlan

Regards,

Erik

Appolgies, i have correct, i was in impression Cat 9K, but later i realised it Nexus, and changed the content.

 

do you see the config applied to interface ?

 

can you post the configuration interface, what is the out come if you apply per interface ?

 

BB

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