Dell PowerConnect 7048P User Manual - Page 708
What Are GARP and GMRP?, Default L2 Multicast Values
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What Are GARP and GMRP? Generic Attribute Registration Protocol (GARP) is a general-purpose protocol that registers any network connectivity or membership-style information. GARP defines a set of switches interested in a given network attribute, such as VLAN ID or multicast address. PowerConnect 7000 Series switches can use GARP functionality for two applications: • GARP VLAN Registration Protocol (GVRP) to help dynamically manage VLAN memberships on trunk ports • GARP Multicast Registration Protocol (GMRP) to help control the flooding of multicast traffic by keeping track of group membership information. GVRP and GMRP use the same set of GARP Timers to specify the amount of time to wait before transmitting various GARP messages. GMRP is similar to IGMP snooping in its purpose, but IGMP snooping is more widely used. GMRP must be running on both the host and the switch to function properly. Default L2 Multicast Values All L2 multicast features are disabled by default. Details about the L2 multicast are in Table 25-1. Table 25-1. L2 Multicast Defaults Parameter Bridge Multicast Filtering IGMP Snooping mode MLD Snooping mode Bridge multicast group Bridge multicast forwarding mode IGMP/MLD snooping IGMP/MLD snooping auto-learn IGMP/MLD snooping host timeout Default Value Disabled Disabled Disabled None configured Forward unregistered Disabled on all interfaces Disabled 260 seconds 708 Configuring L2 Multicast Features
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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