Re: SRLG Shared Risk Link Group with MPLS TE

From: Routing Freak <routingfreak_at_gmail.com>
Date: Fri, 9 Dec 2011 10:45:44 +0530

HI Karim,

Thank you for the info

Shared Risk Link Groups (SRLGs) refer to situations where links in a
network share a common fiber (or a common physical attribute). If one link
fails, other links in the group may fail too. Links in the group have a
shared risk.
Can you give me a example which can explain me the above statement ..

Wat is exactly called as sharing common physical attributes. Is it they are
all part of same physical hardware.
I am not getting it exactly?

On Thu, Dec 8, 2011 at 8:07 PM, Karim Jamali <karim.jamali_at_gmail.com> wrote:

> Hi Routing Freak,
>
> Simply stated:
> You have a primary LSP carrying traffic from point A to point B for a
> certain service. You want to provision another LSP as a backup one however
> you have to take into consideration the SRLG or fate sharing i.e. if both
> these LSPs share common links for instance. Thus when the links go down,
> both the primary/backup LSP will break.
>
> Thus when provisioning backup LSP for node/link protection you have to
> take into consideration that the two LSPs don't share the same SRLG.
>
> HTH,
>
> Thanks
>
>
> On Thu, Dec 8, 2011 at 9:04 AM, Routing Freak <routingfreak_at_gmail.com>wrote:
>
>> Hi fellas,
>>
>> Can anyone share any doc which explains SRLG with MPLS TE. I am reading
>> MPLS TE and i found a term called as SRLG . I googled it but havent seen
>> any good docs for that. Can anyone share me a good doc for SRLG.
>>
>> Thank You
>>
>>
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> --
> KJ
>
>
>
> --
> KJ

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Received on Fri Dec 09 2011 - 10:45:44 ART

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