The MPLS WG Archive

[cowin fiori <cf_list@yahoo.com>]

I have an inquiry regarding the pros and cons of
per-interface versus per-platform label space. 
 
My understanding is that per-platform label space is
good for applications where a label may arrive on any
port. For example, networks where MPLS packets follow
the normal routing path, such as LDP-based networks.
In addition, networks that implement MPLS-TE with fast
re-route.
 
Whereas per-interface labels are more typically used
with explicitly routed LSPs, such as TE tunnels where
the paths are calculated off-line. Other examples
might include some layer 2 VPN applications and static
LSPs.
 
>From an operational perspective, is their an advantage
of having per-platform versus per-interface label
space? Is their a marketing driven reason either
way?Any other insights into the pros and cons of
per-interface vs per-platform label space would be
greatly appreciated.
 
regards.

cf

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