The MPLS-OPS Archive

[Subhash Solleti <subhash.solleti@procket.com>]

Labels in the interface label space are unique perinterface,the same labels can exist in another
interface label space while platform labels are uniqueover the entire router.Platform label space is also
referred to as 'global allocation pool'.

Most implementations use interface label space becauselabel assignment is a local thing and it dosen't
matter if the same labels exist in differnt interfacelabel spaces.Platform labels become important in fast
reroute link protection where the labels need to beunique on the entire platform(because the label pushed
over the back up link needs to be different from thelabel pushed on the primary link). 

Labels are always labels between 1 -1048575.

subhash





>
>----- Original Message -----
>From: Vasu Jolly <gmpls77@hotmail.com>
>To: <mpls-ops@mplsrc.com>
>Sent: Thursday, September 26, 2002 2:46 AM
>Subject: [MPLS-OPS]: Label Space
>
>
>
> Can someone please shed light on Label space namely
> 1)Per Interface Label space
> 2)Per Plateform Label space
>
> What if I want to use {per Plateform Label space}, Will the Label be 
> of the same length.And Why {per plateform label space} is not as 
> commonly used as {per-interface label space}
>
> Secondly If I am using {per Plateform Label Space}, will the Label 
> should have a unique value just like an IP Address.
>
> Regards
> Vasu Jolly
>
>


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