Re: [MEXT] Global Binding Revocation initiated by MAG
"Ahmad Muhanna" <amuhanna@nortel.com> Fri, 12 December 2008 14:57 UTC
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From: "Ahmad Muhanna" <amuhanna@nortel.com>
To: "Magesh Shanmugam" <mshanmugam@intellinet-india.com>
Cc: mext@ietf.org
Subject: Re: [MEXT] Global Binding Revocation initiated by MAG
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Magesh, please see inline. Regards, Ahmad ________________________________ When the 'G' bit is used for a Global revocation and in line with the above logic, we need to communicate the MAG-ID. I understand that currently we do not have a mobility option specific to carry MAG-ID, however, we defined a very specific scenario where the 'G' bit is set and the R. Trigger is set to "per-peer policy". Only in this case, the draft currently allow the MAG to include its ID in the MN-ID option. Sending the BRI and BRA is assumed to follow the exact procedure for PBU and PBA with respect to the source and dest. IP addresses. [Magesh] I'm not in favour of having a new mobility option for carrying the MAG-ID, my concern is if MAG-ID is carried in the BRI message, how does LMA knows all the binding session(s) related to that particular MAG (your point here is implementation dependent). Since from RFC5213 , it is clear that Binding Cache & Policy Profile does not maintain the MAG-ID, i feel it is better to add a statement in Binding Revocation draft regarding the way MAG-ID is handled by LMA for identifying all the binding session(s). In the vice versa case (i.e. LMA sending Global Revocation to MAG with Revocation Trigger set to "Per-Peer Policy" ), the BRI triggered by LMA will not have any mobility option(s). When MAG receives the BRI, based on the LMAA (i.e. source address in the received BRI message), it will retrieve all the binding session(s) and revoke them. I just need the same kind of procedure when MAG sends BRI with status set to "Per-Peer Policy". [Ahmad] As I said earlier in my reply. If the case of the LMA is sufficient to you, then the case of the MAG is sufficient too. Because, in every BRI sent from the MAG to the LMA, the MAG follow the same procedure as in sending a PBU. i.e. src address = pCoA. However, as I said earlier, that could be NOT enough in case the MAG has multiple pCoAs. In this case, my suggestion is: Whenever MAG sends a BRI with the (G) bit is set and the R. Trigger is set to "per-Peer Policy", the MAG must identify the pCoA(s) by including them in Alternate CoA options in the BRI. Is that logic acceptable to you or you have a problem with that? Regards, Ahmad
_______________________________________________ MEXT mailing list MEXT@ietf.org https://www.ietf.org/mailman/listinfo/mext
- [MEXT] Global Binding Revocation initiated by MAG Magesh Shanmugam
- Re: [MEXT] Global Binding Revocation initiated by… Ahmad Muhanna
- Re: [MEXT] Global Binding Revocation initiated by… Magesh Shanmugam
- Re: [MEXT] Global Binding Revocation initiated by… Ahmad Muhanna