CHAPTER 7. MultiCast Protocols
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In this example, all routers are running DVMRP.
1.
Host_1 sends an IGMP membership report to Subnet 1.
2.
After Router_C receives this report, it associates its receiving interface,
Ethernet 1/1, with the group reported in the IGMP message, for example,
Group 1.
3.
Source_1 then sends a data packet for Group 1.
4.
Every router creates an(S,G) entry in the multicast routing table.
5.
When the data packet reaches Router_C, it forwards via the interface,
Ethernet 1/1, because there is a local member on this interface for this
group. Router_C has a downstream receiver, hence, it does not send a
prune message to its upstream neighbor router, Router_B.
Enabling DVMRP
Use the following command to enable DVMRP on an interface. Use this
command for each interface: ip dvmrp enable
For example:
Router# configure terminal Router/configure# interface
ethernet 1/1
Router/configure/interface/ethernet (1/1)# ip dvmrp enable
Router/configure/interface/ethernet (1/1)# exit
Router/configure# interface ethernet 2/1
Router/configure/interface/ethernet (2/1)# ip dvmrp enable
Router/configure/interface/ethernet (2/1)# exit
Verifying Configuration
Use the following commands to verify interface, neighbor, route, prune, and
DVMRP global state information. Note: For details on the commands used in
the following example, refer to the Ubigate iBG2016 Command Reference.
Содержание Ubigate iBG2016
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