Hi all,

We have an ISIS auto-configuration draft under developing in ISIS WG 
(draft-liu-isis-auto-conf). Since Homenet/SME networks are one of the main 
scenarios our draft targets at, and we already have an OSPF-autoconf mechanism 
available (draft-ietf-ospf-ospfv3-autoconfig), during the isis meeting some 
people raised the question whether Homenet WG want to support multiple IGP 
auto-configuration mechanisms.

I checked the meeting minutes of the last Homenet meeting. And found the status 
of the issue is:
- WG had decided to have both a configuration protocol (HNCP) + a routing 
protocol
- WG hasn't decided to have only one routing protocol or two, or even N...
- it seems only one routing protocol has more support

May I ask a couple of questions:

1) Is it necessary to enforce only one routing protocol?
If HNCP is adopted, I guess multiple routing protocols could be easily 
supported ?
I think it might be more flexible if homenet router support multiple routing 
protocols. Is there any harm? 
(Note: supporting multiple routing protocols here doesn't mean they need run at 
the same time, just more choices.)

2) If we decide to have only one, then what is the criteria for protocol 
selection?

Look forward to your comments. Many thanks.

Best regards,
Bing

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