RE: port channels Question

Manoj,

Here is a pretty fail-safe way to get the port channels up and you'll want to create a different group between each of the switches:

Rack1SW4(config)#default interface f0/13
Interface FastEthernet0/13 set to default configuration
Rack1SW4(config)#default interface f0/14
Interface FastEthernet0/14 set to default configuration
Rack1SW4(config)#default interface f0/15
Interface FastEthernet0/15 set to default configuration
Rack1SW4(config)#in range f0/13-15
Rack1SW4(config-if-range)#shut
*May 8 04:09:06.538: %LINK-5-CHANGED: Interface FastEthernet0/13, changed state to administratively down
*May 8 04:09:06.650: %LINK-5-CHANGED: Interface FastEthernet0/14, changed state to administratively down
*May 8 04:09:06.774: %LINK-5-CHANGED: Interface FastEthernet0/15, changed state to administratively down
*May 8 04:09:07.538: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/13, changed state to down
Rack1SW4(config-if-range)#channel-group 19 mo ac
Creating a port-channel interface Port-channel 19

Rack1SW4(config-if-range)#in
*May 8 04:09:07.650: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/14, changed state to down
*May 8 04:09:07.774: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/15, changed state to down
Rack1SW4(config-if-range)#in po19
% Command exited out of interface range and its sub-modes.
  Not executing the command for second and later interfaces
Rack1SW4(config-if)#swi t e d
Rack1SW4(config-if)#swi mo tru
Rack1SW4(config-if)#in range f0/13-15
Rack1SW4(config-if-range)#no shut
Rack1SW4(config-if-range)#do show eth su
*May 8 04:09:21.542: %LINK-3-UPDOWN: Interface FastEthernet0/13, changed state to up
*May 8 04:09:21.546: %LINK-3-UPDOWN: Interface FastEthernet0/14, changed state to up
*May 8 04:09:21.546: %LINK-3-UPDOWN: Interface FastEthernet0/15, changed state to up
Rack1SW4(config-if-range)#do show eth sum
*May 8 04:09:27.262: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/13, changed state to up
*May 8 04:09:27.330: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/15, changed state to up
Rack1SW4(config-if-range)#do show eth sum
*May 8 04:09:28.246: %LINK-3-UPDOWN: Interface Port-channel19, changed state to up
Rack1SW4(config-if-range)#do show eth sum
Rack1SW4(config-if-range)#do show eth sum
Flags: D - down P - bundled in port-channel
        I - stand-alone s - suspended
        H - Hot-standby (LACP only)
        R - Layer3 S - Layer2
        U - in use f - failed to allocate aggregator

        M - not in use, minimum links not met
        u - unsuitable for bundling
        w - waiting to be aggregated
        d - default port

Number of channel-groups in use: 1
Number of aggregators: 1

Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
19 Po19(SU) LACP Fa0/13(P) Fa0/14(P) Fa0/15(P)

Summary:

Default the interface
Shut them down
Create the channel-group
Edit the port-channel interface
Bring the members up.

-ryan

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of S Malik
Sent: Thursday, August 27, 2009 2:23 PM
To: Nanda, Manoj (DS-1)
Cc: ccielab_at_groupstudy.com
Subject: Re: port channels Question

I would create one channel per neighbor. Of course Interface range works as
you mentioned (channel-protocol lacp +
channel-group 1 mode active/passive) then you can provide cmds under
port-channel accordingly.

On Thu, Aug 27, 2009 at 1:49 PM, Nanda, Manoj (DS-1) <MNanda_at_drs-tsi.com>wrote:

> Guys: Need to create lacp port channels among four switches. What is the
> best way to do this without creating confusion. If I do this using
> interface range command and configure channel group/protocols it puts
> all the interfaces on the same port channel (1!). Of course I can go and
> change the port channel.
> I think I should have two different port channels per switch!
> Any suggestion!
> Thanks
> r/manoj
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Jobby Jose
> Sent: Thursday, August 27, 2009 12:26 PM
> To: ccielab_at_groupstudy.com
> Subject: CCIE # 25260
>
> Hi All,
>
> I am glad to share that i got my number in R&S track yesterday.I would
> like
> to thank Internetwork Expert team for their excellent material and labs.
> And
> also thanks to all guys here for their posts, which is one of the best
> KB i
> have.
>
>
> Best Regards
> Jobby Jose
>
>
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Received on Thu Aug 27 2009 - 15:08:28 ART