Re: STP question// LACP

From: marc abel <marcabel_at_gmail.com>
Date: Mon, 4 Feb 2013 21:14:42 -0600

Have you bounced all ends of all the links or is this a production link?
On Feb 4, 2013 9:11 PM, "ramesh Kumar" <rameshkumar123321_at_yahoo.com> wrote:

> Hi Steve,
>
> The configs are identical both sides.
>
> I am suspecting
> unidirectional link issue. when i do show lacp counters port-channel <ID>
> it
> shows LACP PDU being sent but not received at both ends
> I am planning to
> enable UDLD and see. But I am wondering can we enable UDLD on a single
> port-channel member or it has be enabled on the entire port-channel
> interface?
> can you please assist?
>
> Ramesh
>
>
> ________________________________
> From: Steve
> Di Bias <sdibias_at_gmail.com>
> To: ramesh Kumar <rameshkumar123321_at_yahoo.com>
> Cc: "ccielab_at_groupstudy.com" <ccielab_at_groupstudy.com>
> Sent: Saturday,
> February 2, 2013 11:15 PM
> Subject: Re: STP question// LACP
>
> No TCN since STP
> is running at the PortChannel level. It will however send
> a trap and will how
> up in your local log buffer:
>
> If a segment within an EtherChannel fails,
> traffic previously carried over
> the failed link switches to the remaining
> segments within the EtherChannel.
> When a failure occurs, the EtherChannel
> feature sends a trap that
> identifies the switch, the EtherChannel, and the
> failed link.
>
> Regarding LACP an suspended link. Could you please provide
> interface
> configs from all ports on both sides? Are they all identical?
>
>
>
>
> On
> Sat, Feb 2, 2013 at 5:08 AM, ramesh Kumar <rameshkumar123321_at_yahoo.com
> >wrote:
> > Hello,
> >
> > I have a port-channel of 8 links. one of them went to suspended
> state.
> > i took that link out of PO and the came back up as normal but adding
> it
> > back
> > to the PO it goes to the suspend state. the config at both end are
> the
> > same.
> > they are doing LACP and mode is set to be active at both ends.
> What else we
> > can try here? any clue?
> >
> > Also i would like to know if any
> STP tcn is generated
> > when a port-channel link moves to suspend state or not.
> >
> > please advice.
> > Ramesh
> >
> >
> > Blogs and organic groups at
> http://www.ccie.net
> >
> >
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>
>
> --
> Thank you,
> Steve Di Bias
> CCIE #32840
>
>
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> _______________________________________________________________________
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>
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>
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Received on Mon Feb 04 2013 - 21:14:42 ART

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