Cisco WS-C6509-E with VS-S720-10G question

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Apr 27th, 2009
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I have a cisco WS-C6509-E with VS-S720-10G (12.2(33)SXI1) and i'm seeing something weird when i do a "show etherchannel summary" command


I am seeing additional port-channels which I have not created.

For example i'm seeing:

699 Po699(SD) -

700 Po700(SD) -

731 Po731(SD) -

732 Po732(SD) -


Is this something to be concerned about how can i remove them?

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Jerry Ye Mon, 04/27/2009 - 14:02
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Hi,


Can you post the output of show ehterchannel summary.


If you don't need it, just remove it by going into all the interfaces associated with these etherchannel:

interface xxxx

no channel-group xxx


After you are done, go to the global config mode and do

no interface port-channel xxx


Verify it by using the show ehterchannel summary command.


HTH,

jerry

latintrpt Tue, 04/28/2009 - 05:36
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I can't remove it because there are no interfaces associated with these etherchannels:


Here is my output:

Number of channel-groups in use: 9

Number of aggregators: 9


Group Port-channel Protocol Ports

------+-------------+-----------+-----------------------------------------------

1 Po1(RU) - Te1/5/4(P) Te1/5/5(P)

2 Po2(RU) - Te2/5/4(P) Te2/5/5(P)

3 Po3(SD) - Te1/7/1(D) Te2/7/1(D)

4 Po4(SD) - Te1/7/2(D) Te2/7/2(D)

5 Po5(SD) - Te1/7/3(D) Te2/7/3(D)

699 Po699(SD) -

700 Po700(SD) -

731 Po731(SD) -

732 Po732(SD) -


Jerry Ye Tue, 04/28/2009 - 07:35
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Can you do the following for me:


sh run int po 699

sh run int po 700

sh run int po 731

sh run int po 732


The reason I am asking is I tested this in my lab, if you create the etherchannel before you assign the ports into the interface, you will get this result. Here is the output from my lab:


SW2(config)#do sh ether sum

Number of channel-groups in use: 1

Number of aggregators: 1


Group Port-channel Protocol Ports

------+-------------+-----------+-----------------------------------------------

23 Po23(SU) LACP Fa0/16(P) Fa0/17(P)


SW2(config)#int po 3

SW2(config-if)#do sh ether sum

Number of channel-groups in use: 2

Number of aggregators: 2


Group Port-channel Protocol Ports

------+-------------+-----------+-----------------------------------------------

3 Po3(SD) -

23 Po23(SU) LACP Fa0/16(P) Fa0/17(P)


SW2(config-if)#exit

SW2(config)#no int po 3

Rack1SW2(config)#do sh ether sum

Number of channel-groups in use: 1

Number of aggregators: 1


Group Port-channel Protocol Ports

------+-------------+-----------+-----------------------------------------------

23 Po23(SU) LACP Fa0/16(P) Fa0/17(P)


As a result, if you go into the global config mode and do


no int po 699

no int po 700

no int po 731

no int po 732


this should clear those unused/unassign etherchannel.


HTH,

jerry


latintrpt Tue, 04/28/2009 - 07:59
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when i do a:

sh run int po 699


I get the following:

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

show run int po 699

Building configuration...


Current configuration : 5 bytes

end

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

Each one of the other po's output the same thing.


When i do a no int po 699 in global config mode i get:

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

no int po 699

^

% Invalid input detected at '^' marker.

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


Not sure what's going on






Jerry Ye Tue, 04/28/2009 - 08:04
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This is very strange. Give this a try in global config mode:


int po 699

exit

no int po 699


Regards,

jerry

latintrpt Tue, 04/28/2009 - 08:08
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when i do int po 699 in global config mode i get:

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

int po 699

^

% Invalid input detected at '^' marker.

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



Jerry Ye Tue, 04/28/2009 - 08:37
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  • Cisco Employee,

Hi,


Just realized something, the etherchannel/port-channel number 699, 700, 731, and 732 are not valid. The valid numbers are 1 - 256. I am not able to find anything which show these port-channels are default command.


One more suggestion, if the switch is not in production, you can try to reload it or upgrade to SXI1. I am hoping the reboot process realized that it is not way to create these etherchannels (out of range channel number) in the config.


HTH,

jerry

gnijs Tue, 04/28/2009 - 12:33
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Are you using WISM modules in the chassis ?

They generate some portchannels by default.

latintrpt Wed, 04/29/2009 - 13:24
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Yes i do have 2 WISM's in my vss environment, and thing that's it. Thanks for you help guys.

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