The IESG has approved following document: - 'Considerations for IGMP and MLD Snooping Switches ' <draft-ietf-magma-snoop-10.txt> as an Informational RFC This document is the product of the Multicast & Anycast Group Membership Working Group. The IESG contact persons are Margaret Wasserman and Thomas Narten. Technical Summary This memo describes the recommendations for IGMP- and MLD-snooping switches. These are based on best current practices for IGMPv2, with further considerations for IGMPv3- and MLDv2-snooping. Additional areas of relevance, such as link layer topology changes and Ethernet-specific encapsulation issues, are also considered. Working Group Summary This document is a product of the MAGMA WG. It was modified after WG last call to address issues raised during AD and IESG Review by Margaret Wasserman and Steve Bellovin. Pekka Savola also offered helpful review comments. Protocol Quality This document was reviewed for the IESG by Margaret Wasserman. RFC Editor Note Please make the following change before publication: OLD: - Multicast router discovery is accomplished using Neighbor Discovery Protocol [NDP] for IPv6. NDP uses ICMPv6 message types. NEW: - Multicast router discovery is accomplished using the Multicast Router Discovery (MRDISC) protocol defined in [MRDISC]. Thanks!