Cisco Systems 78-11741-02 Wireless Office Headset User Manual


 
Configuring Router-Port Group Management Protocol
RGMP Overview
IPC-528
Cisco IOS IP Configuration Guide
Figure 88 shows where these protocols operate within the IP multicast environment.
Figure 88 IP Multicast Routing Protocols
Note CGMP and RGMP cannot interoperate on the same switched network. If RGMP is enabled on a
switch or router interface, CGMP is automatically disabled on that switch or router interface; if
CGMP is enabled on a switch or router interface, RGMP is automatically disabled on that switch or
router interface.
RGMP Overview
RGMP enables a router to communicate to a switch the IP multicast group for which the router would
like to receive or forward traffic. RGMP is designed for switched Ethernet backbone networks running
PIM sparse mode (PIM-SM) or sparse-dense mode.
Note RGMP-enabled switches and router interfaces in a switched network support directly connected,
multicast-enabled hosts that receive multicast traffic. RGMP-enabled switches and router interfaces
in a switched network do not support directly connected, multicast-enabled hosts that source
multicast traffic. A multicast-enabled host can be a PC, a workstation, or a multicast application
running in a router.
Figure 89 shows a switched Ethernet backbone network running PIM in sparse mode, RGMP, and IGMP
snooping.
Host
Host
PIM
IGMP
CGMP
DVMRP
Internet
MBONE
Catalyst 5000
switch
43274