Ipv4 Multicast Routing Protocol; Igmp Protocol; Pim-Sm - Zte ZXR10 5900 Product Description

 Support AS confederation, route flap dampening.
 Support MP-BGP.
 Support MD5 authentication, routing filtering.
 Support route redistribution.
3.14

IPv4 Multicast Routing Protocol

3.14.1

IGMP protocol

IGMP protocol is used by multicast router between host and the multicast router for
getting information of multicast group member.
Multicast router sends query message of group member to all the hosts on a regular
basis to make it be clear of the staffs in the network. The host will return a group
member report to tell which multicast group it belongs to. When one host wants to add in
a new group, it will immediately send group member report instead of waiting for an
enquiry.
When the host starts receiving information as a member of one group, the multicast
router makes sure if the member of the group participate in by checking the group
periodically. As long as there are some group members on this interface, the multicast
router will keep sending this group data to this interface. When the host leaves the
group, it will send a message to the multicast router to inform its leaving, and then the
multicast router will check if there is any active group member in this group. If there are
still some active group members, the multicast router will keep forwarding data. If not, no
data will be processed.
Now there are two existing versions: IGMP V1 and IGMP V2. With more enhanced
features, IGMP V2 compared with IGMP V1 uses 4 sorts of message to realize the
information interaction between the host and the router:
Group member query

V2 member report

 Leaving report
V1 member report

V1 member report is used to be compatible with IGMP V1.
3.14.2

PIM-SM

PIM-SM is always the optimal multicast routing protocol in multicast network. To
implement multicast message distribution, PIM-SM adopts multicast information sink
display add-in mechanism to build share tree. Under a certain circumstance, information
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ZXR10 5900 5200 Product Description
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