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IP over ETH CS Design Call on Oct. 20 Participants: Jari Arkko, Mark Townsley, Dave Thaler, Max Riegel, Ralph Droms Results: For IPv4: Proxy ARP is needed because ARP uses broadcast. For IPv6: Multicast is used; RFC 4541 (MLD snooping bridges) can be deployed to prune unnecessary multicast transmissions. RFC4541 may be sufficient for everything else than the all-nodes addresses. Some intelligent filtering may be needed for these. In the PPPoE case LCP echo should be turned off. Turning it off may cause problems, but in the PPPoE case the subscriber station is usually a gateway with an external power supply. Combination of a periodic RA process with solicited RAs from waking-up node may be the best. No optimization at the access router; it may be unaware of the 802.16 link. No need to revise ND for 802.16 ETH-CS purposes. |