Re: Mpls Session protection - SP

You are correct on your answer. However in addition the duration you can
also specify with an access-list on what labels are protected and on a per
vrf context as well. You normally do not achieve those extras without
session protection. Correct?

On Mon, May 11, 2009 at 11:33 PM, joshua atterbury <
joshuaatterbury_at_gmail.com> wrote:

> Hi GS,
>
> I've been creating my own mpls labs while studying and obviously came
> across
> session protection. Standard Session Protection with the use of mpls ldp
> session protect for/duration etc I fully understand and can comprehend.
>
> So here's my question, If I do NOT enable session protection, But configure
> targeted hellos between two directly connected neighbors with mpls ldp
> neigh
> X.X.X.X targeted and mpls ldp disc targeted accept, I get basically the
> same
> results.
> Ie when the directly link goes down the session is still there, Label
> database is still populated etc.
>
> From my testing the reconvengence times etc are the same using both
> methods.
> The only difference I can see is the ability to put a duration timer on
> session protection and that show mpls ldp neigh X det specifically mentions
> Session protection.
>
> Have I missed something? or Can you infact use targeted hellos as a form of
> session protection as my tests have shown?
>
> Cheers.
> Josh
>
>
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-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining.com
www.Net-Workbooks.com
Sr. Technical Instructor
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