Ipv4 Multicast Route - Zte ZXR10 5900E Product Description

controlling the multicast groups through IGMP messages. However, they differ in that
IGMP runs on the network layer, while IGMP Snooping runs on the link layer. When the
switch receives IGMP packets, IGMP Snooping will parse the information contained in
them and establish and maintain a MAC multicast address table on L2.
When IGMP Snooping is enabled on the ZXR10 5900E, multicast packets are multicast
on L2. When no IGMP Snooping is enabled, multicast packets will be broadcast on L2.
3.1.8

Ipv4 Multicast Route

IP multicast route technology realizes single point-to multipoint fast data transmission in
IP network. IP multicast service can efficiently save network bandwidth, reduce network
load, so it is widely used in resource discovery, multimedia conference, data copy,
real-time data transmission, E-Game and emulation services. Multicast protocol consists
of inner and intra domain protocols, where intra-domain protocol contains MBGP and
MSDP, etc. and inner-domain protocol includes PIM-SM, PIM-DM and DVMRP, etc. the
inner-domain protocol is mainly classified into two categories, one is sparse-mode
multicast routing protocol including PIM-SM, and the other is dense-mode multicast
routing protocol with PIM-DM and DVMRP included. Currently, the most practical
multicast protocol is PIM-SM.
PIM-SM uses multicast sink display join-in mechanism to build sharing spanning tree in
order to distribute multicast data messages. In a certain circumstance, sink can also be
switched over to the shortest path tree. Besides, PIM-SM is independent from UNICAST
routing protocol, instead of relying on a special UNICAST routing protocol it uses
UNICAST routing table to inspect RPF. PIM-SM is more suitable for the network with
multicast members at the end of WAN (Wide Area Network) link; in addition, PIM-SM
allows SPT, so it shortens the latency caused by using sharing tree. In a word, PIM-SM is
usually the optimal multicast routing protocol used in the multicast network.
ZXR10 5900E series can completely support PIM-SM, and provide integrated multicast
solutions.
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ZXR10 5900E Product Description
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