[pim] About "draft-ietf-pim-sm-v2-new-12.txt" PIM register-stop message
"Ying Lei\(BAN\)" <yinglei@utstar.com> Fri, 12 May 2006 15:09 UTC
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Thread-Topic: About "draft-ietf-pim-sm-v2-new-12.txt" PIM register-stop message
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From: "Ying Lei(BAN)" <yinglei@utstar.com>
To: pim@ietf.org, fenner@research.att.com, M.Handley@cs.ucl.ac.uk, holbrook@arastra.com, kouvelas@cisco.com
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Subject: [pim] About "draft-ietf-pim-sm-v2-new-12.txt" PIM register-stop message
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Hi,
In Section 4.9.4 Register-Stop Message Format, the Source Address is
Encoded-Unicast format, but why here describe the "wild card value", I
can't understand.
Source Address
The host address of the source from the multicast data packet in
the register. The format for this address is given in the Encoded-
Unicast address in Section 4.9.1. A special wild card value
consisting of an address field of all zeroes can be used to
indicate any source.
Encoded-Unicast address
An Encoded-Unicast address takes the following format:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Addr Family | Encoding Type | Unicast Address
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+...
In Encoded-Unicast address, there is no wild card field. Wild card filed
belongs to Encoded-Source address,
Encoded-Source address
Encoded-Source address takes the following format:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Addr Family | Encoding Type | Rsrvd |S|W|R| Mask Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Source Address
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-...
So, my question is:
Which encoded address is for PIM Register-Stop message format Source
Address? Encoded-Unicast address or Encoded-Source Address?
Best Regards
-----------------------------------
Ying Lei
UTStarcom Telecom CO.,Ltd
Email: yinglei@utstar.com
-----------------------------------
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- [pim] About "draft-ietf-pim-sm-v2-new-12.txt" PIM… Ying Lei(BAN)