Huawei Quidway S3900 Series Operation Manual page 366

Operation Manual – Multicast Protocol
Quidway S3900 Series Ethernet Switches-Release 1510
A multicast group whose addresses are assigned by IANA is a permanent
multicast group. It is also called reserved multicast group.
Note that:
The IP addresses of a permanent multicast group keep unchanged, while the
members of the group can be changed.
There can be any number of, or even zero, members in a permanent multicast
group.
Those IP multicast addresses not assigned to permanent multicast groups can be
used by temporary multicast groups.
Class D IP addresses range from 224.0.0.0 to 239.255.255.255. For details, see Table
1-1.
Table 1-1 Range and description of Class D IP addresses
Class D address range
224.0.0.0 to 224.0.0.255
224.0.1.0 to 231.255.255.255
233.0.0.0 to 238.255.255.255
232.0.0.0 to 232.255.255.255
239.0.0.0 to 239.255.255.255
As specified by IANA, the IP addresses ranging from 224.0.0.0 to 224.0.0.255 are
reserved for network protocols on local networks. The following table lists commonly
used reserved IP multicast addresses:
Table 1-2 Reserved IP multicast addresses
Class D address range
224.0.0.1
224.0.0.2
224.0.0.3
224.0.0.4
224.0.0.5
224.0.0.6
Reserved multicast addresses (IP addresses for
permanent multicast groups). The IP address
224.0.0.0 is reserved. Other IP addresses can be
used by routing protocols.
Available any-source multicast (ASM) multicast
addresses (IP addresses of temporary groups).
They are valid for the entire network.
Available
multicast group addresses.
Local management multicast addresses, which
are used in the local use only.
Address of all hosts
Address of all multicast routers
Unassigned
Distance
(DVMRP) routers
Open shortest path first (OSPF) routers
Open shortest path first designated routers
(OSPF DR)
Huawei Technologies Proprietary
1-7
Chapter 1 Multicast Overview
Description
source-specific multicast
Description
vector multicast routing
(SSM)
protocol