Dell PowerConnect 8100 User's Configuration Guide - Page 704
Topologies Where the Multicast Source Is Not Directly Connected to the Querier
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Topologies Where the Multicast Source Is Not Directly Connected to the Querier If the multicast source is not directly connected to a multicast querier, the multicast stream is forwarded to any router ports on the switch (within the VLAN). Because multicast router queries are flooded to all ports in the VLAN, intermediate IGMP snooping switches will receive the multicast stream from the multicast source and forward it to the multicast router. Using Static Multicast MAC Configuration If configuring static multicast MAC group addresses on a port in a VLAN, it is necessary to configure all ports in the VLAN over which it is desired that the group traffic flow (both host and router) on all switches. IGMP snooping does not dynamically add ports to a VLAN for a multicast group when a static entry is configured for that group in the VLAN. This restriction applies to both multicast router-connected ports and host-connected ports. IGMP Snooping and GMRP IGMP snooping and GMRP are not compatible. Only one of IGMP snooping or GMRP should be configured to filter multicast groups for any VLAN. Simultaneous operation of GMRP and IMGP snooping is not supported and will lead to undesirable results, such as flooding in the VLAN due to the inability to identify multicast router ports. 704 Configuring L2 Multicast Features
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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
-
1,235
-
1,236
-
1,237
-
1,238
-
1,239
-
1,240
-
1,241
-
1,242
-
1,243
-
1,244
-
1,245
-
1,246
-
1,247
-
1,248
-
1,249
-
1,250
-
1,251
-
1,252
-
1,253
-
1,254
-
1,255
-
1,256
-
1,257
-
1,258
-
1,259
-
1,260
-
1,261
-
1,262
-
1,263
-
1,264
-
1,265
-
1,266
-
1,267
-
1,268
-
1,269
-
1,270
-
1,271
-
1,272
-
1,273
-
1,274
-
1,275
-
1,276
-
1,277
-
1,278
-
1,279
-
1,280
-
1,281
-
1,282
-
1,283
-
1,284
-
1,285
-
1,286
-
1,287
-
1,288
-
1,289
-
1,290
-
1,291
-
1,292
-
1,293
-
1,294