From: Rado Vasilev (decklandv@gmail.com)
Date: Thu Sep 04 2008 - 06:39:50 ART
Hi,
What exactly are you trying to achieve?
By default IOS will advertise labels for all IGP prefixes, connected
routes included.
Rado
> 2nd Try
>
> On Mon, Sep 1, 2008 at 2:36 PM, Deepak Ahuja <deeps.ccie@gmail.com> wrote:
>
>
>> Hi Experts
>>
>> I am sure someone will be able to answer my question.
>>
>> The question
>> How can I make one of the interface advertise all the labels in MPLS ?
>> Given the situation its a loopback interface.
>>
>>
>>
>> Mpls ldp advertise-label interface loopback is not supported, though I can
>> type the command but it rejects it with the following error
>> "% Loopback interface is not supported"
>>
>> Per the IETF documentation (
>> http://tools.ietf.org/html/draft-swallow-mpls-lsr-self-test-00#section-2)
>> The Loopback FEC type is defined to enable an upstream neighbor to
>> assist in the LSR self-testing at very low cost. This FEC allows the
>> loopback to occur in the dataplane without control plane involvement beyond
>> the initial LDP exchange and dataplane setup.
>>
>> An LSR uses the Loopback FEC to selectively advertise loopback labels to
>> its neighbor LSRs. Each loopback label is bound to a particular interface.
>> For multiaccess links, one label per neighbor is required since the
>> link-level address is derived from the label lookup. When an MPLS packet
>> with its top label set to a loopback label is received from an interface
>> over which that label was advertised, the loopback label is popped and the
>> packet is sent on the interface to which the loopback label was bound.
>>
>> Thanks in Advance
>>
>> Warm Regards
>>
>> Deepak Ahuja
>>
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
This archive was generated by hypermail 2.1.4 : Sat Oct 04 2008 - 09:26:17 ART