Hi Shraddha,
Since RFC 2328 and RFC 5340 don’t explicitly call out the case of 0xffff, I 
don’t see why this should be handled. Perhaps, we should state both metric 
SHOULD be set to 0xffff in the stub router case.
Thanks,
Acee

From: Shraddha Hegde <[email protected]<mailto:[email protected]>>
Date: Tuesday, October 6, 2015 at 5:58 AM
To: 
"[email protected]<mailto:[email protected]>"
 
<[email protected]<mailto:[email protected]>>
Cc: OSPF WG List <[email protected]<mailto:[email protected]>>
Subject: draft-ietf-ospf-two-part-metric : Max metric handling

Authors,

As per my understanding of the draft, SPF calculation uses sum of metric from 
the interface cost and the network to router cost advertised by the neighbor.
Handling of MAX metric is not described in the draft.  Since the metric will be 
sum of 2 16 bit numbers it can exceed the normal 0xffff metric value and the 
draft should talk about how to handle these cases.

Rgds
Shraddha


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