Dell PowerConnect 7048P User Manual - Page 1139
What Multicast Protocols Does the Switch Support?, What Are the Multicast Protocol Roles?, Table 42-1.
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What Multicast Protocols Does the Switch Support? Multicast protocols are used to deliver Multicast packets from one source to multiple receivers. Table 42-1 summarizes the multicast protocols that the switch supports. Table 42-1. Multicast Protocol Support Summary Protocol IGMP MLD PIM-SM PIM-DM DVMRP IPv4 or IPv6 IPv4 IPv6 IPv4 or IPv6 IPv4 or IPv6 IPv4 For Communication Between Host-to-L3 switch/router Host-to-L3 switch (router) L3-switch/router-to-L3 switch/router L3-switch/router-to-L3 switch/router L3-switch/router-to-L3 switch/router What Are the Multicast Protocol Roles? Hosts must have a way to identify their interest in joining any particular multicast group, and routers must have a way to collect and maintain group memberships. These functions are handled by the IGMP protocol in IPv4. In IPv6, multicast routers use the Multicast Listener Discover (MLD) protocol to maintain group membership information. Multicast routers must also be able to construct a multicast distribution tree that enables forwarding multicast datagrams only on the links that are required to reach a destination group member. Protocols such as DVMRP, and PIM handle this function. IGMP and MLD are multicast group discovery protocols that are used between the clients and the local multicast router. PIM-SM, PIM-DM, and DVMRP are multicast routing protocols that are used across different subnets, usually between the local multicast router and remote multicast router. Managing IPv4 and IPv6 Multicast 1139
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1,202
-
1,203
-
1,204
-
1,205
-
1,206
-
1,207
-
1,208
-
1,209
-
1,210
-
1,211
-
1,212
-
1,213
-
1,214
-
1,215
-
1,216
-
1,217
-
1,218
-
1,219
-
1,220
-
1,221
-
1,222
-
1,223
-
1,224
-
1,225
-
1,226
-
1,227
-
1,228
-
1,229
-
1,230
-
1,231
-
1,232
-
1,233
-
1,234