Joel,
An ITR should send an ICMP message whenever it discards a packet
because it has been instructed to do so by a Negative Map Reply
Message with indication to drop. As the document is currently
organized, I am not sure where that detail fits.
I will fix it.
Dino
Ron
-----Original Message-----
From: Joel M. Halpern [mailto:[email protected]]
Sent: Monday, June 27, 2011 1:18 PM
To: Ronald Bonica
Cc: Dino Farinacci; [email protected]
Subject: Re: [lisp] Last call for draft-ietf-lisp-12
Just to clarify what you are asking Ron,
would you like the text to say "SHOULD send an ICMP"?
And in which places would you like it to say that?
Thanks,
Joel
On 6/27/2011 12:23 PM, Ronald Bonica wrote:
Dino,
Maybe I am misreading you, but your response to me seems to
contradict your response to Alia. When Alia asked, you said,
"Experimentation will tell us more on what to do." When I asked,
you seemed to have made up your mind about following the
recommendation of RFC 4443.
Which is it?
Ron
-----Original Message-----
From: Dino Farinacci [mailto:[email protected]]
Sent: Monday, June 27, 2011 12:07 PM
To: Ronald Bonica
Cc: Alia Atlas; [email protected]
Subject: Re: [lisp] Last call for draft-ietf-lisp-12
Dino,
Why not take the advice of RFC 4443? It says that a router SHOULD
send an ICMP message.
Why duplicate what another document is specifying? The LISP router
should send an ARP also when it decaps and the EID is directly
connected. Should we specify that as well?
Dino
Ron
4) Generally, a section specifying ITR behavior in regard to
packets
is missing.
i) For instance, if an ITR receives a Negative Map Reply indicated
"drop", should the ITR send an ICMP Destination Unreachable with
Host Unreachable?
We did not want to specify this because in practice when this is
done
either the ICMP messages are either rate-limited or filtered so ICMP
is not a reliable mechanism.
Experimentation will tell us more on what to do.
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