draftietfpimigmpmldextension02 M Sivakumar S Venaas Z Zhang H
- Slides: 5
draft-ietf-pim-igmp-mldextension-02 M. Sivakumar S. Venaas Z. Zhang H. Asaeda Stig Venaas presenting
Overview – A generic way of extending IGMPv 3/MLDv 2 messages • Defines extension TLVs and a registry • BIER extension moved to IGMP/MLD overlay (draftietf-bier-mld) – Main changes since revision 01 • Added text on what must be specified in documents defining new types, such as backwards compatibility.
Using a currently reserved bit to indicate this extension is used A query looks like this: 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type = 0 x 11 | Max Resp Code | Checksum | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Group Address | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |E| Resv|S| QRV | QQIC | Number of Sources (N) | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Source Address [1] | +-+ | Source Address [2] | +. -+. . . +-+ | Source Address [N] | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |Extension Type | Extension Value | ~ ~ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
What next? – Any comments? – WGLC? • Might help get input
