[Isis-wg] draft-ietf-isis-traffic-01.txt

[David Tallerico]

In section 3.0 of the subject draft, regarding the router ID TLV, the
following statement appears:

   Implementations MUST NOT inject a /32 prefix for the router ID into
   their forwarding table, because this can lead to forwarding loops
   when interacting with systems that do not support this TLV.

Could someone provide further explanation or, better yet, an illustration
of the scenario involved?

David Tallerico
Internet Engineering
Cable & Wireless USA