Re: draft-ietf-mpls-generalized-signaling-05 Interface Identification

[Yakov Rekhter <yakov@juniper.net>]

Steve,

> draft-ietf-mpls-generalized-signaling-05 section 9.1 defines a new
> Interface_ID TLV which
> allows for specifying Types of:
> 
>     IPv4
>     IPv6
>     IF_INDEX
>     COMPONENT_IF_DOWNSTREAM
>     COMPONENT_IF_UPSTREAM
> 
> Why the inclusion of Components?
> Shouldn't components be signaled as per draft-kompella-mpls-bundle-05?
> In the presence of bundling is it valid to have an Interface_ID TLV which
> specifies the components? Wouldn't it be redundant?
> 
> Having two ways of signaling the same information may simply create problems
> with interoperability.

Agreed wrt "two ways". And that is why we just submitted a revised version 
of the bundling Internet Draft that uses just IF_ID. 

Yakov.