Re: [Time] I-D Action: draft-ww-opsawg-multi-layer-oam-00.txt

Melinda Shore <> Fri, 13 June 2014 05:23 UTC

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Date: Thu, 12 Jun 2014 21:23:33 -0800
From: Melinda Shore <>
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Subject: Re: [Time] I-D Action: draft-ww-opsawg-multi-layer-oam-00.txt
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On 6/12/14 8:46 PM, Qin Wu wrote:
> Hi, folks:
> We have submitted a new draft which discuss problem statement of technology independent OAM in the multi-layer network
> Your comments or feedback are welcome!

Hi, Qin:

I think this is potentially an extremely rich area for
new work, with the caveat that I think that if you say
that there aren't multi-layer OAM technologies now you're
likely to run into disagreement from the SNMP experts,
YANG experts, and so on.  I do think that you've isolated
one particularly interesting and not-very-well explored
area, which is path-coupled diagnostics and management.
I did some work in this area a long time ago
and while it moved ahead in a proprietary context not
much was standardized.  The IETF developed a similar
mechanism (NSIS) but it's complex, has messy layers,
and is quite heavy-weight.  Still, the notion of triggering
device management actions or diagnostics along a network
path remains extremely interesting and insufficiently
investigated.  It's likely there may be some work there
but I think there needs to be some strongly-stated use