Dell PowerConnect M6220 Configuration Guide - Page 30
CLI Example, IGMP Snooping, Overview
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You can also configure groups of protected ports, but unprotected ports are independent and cannot be added to a group. Each group's configuration consists of a name and a mask of ports. A port can belong to only one set of protected ports, but an unprotected port can be added to a group as a protected port. The group name is configurable by the network administrator. Use the switchport protected command to designate a port as protected. Use the show switchport protected command to display a listing of the protected ports. CLI Example Example #1: Configuring a Protected Port The commands in this example name the protected port group 1 "PP_Test" and assign ports 1 and 2 to the group. console(config)#switchport protected 1 name PP_Test console(config)#interface ethernet 1/g1 console(config-if-1/g1)#switchport protected 1 console(config-if-1/g1)#exit console(config)#interface ethernet 1/g2 console(config-if-1/g2)#switchport protected 1 console(config-if-1/g2)#exit console(config)#exit Example #2: Viewing Protected Port Group 1 console#show switchport protected 1 Name PP_Test" 1/g1, 1/g2 IGMP Snooping This section describes the Internet Group Management Protocol (IGMP) Snooping feature. IGMP Snooping enables the switch to monitor IGMP transactions between hosts and routers. It can help conserve bandwidth by allowing the switch to forward IP multicast traffic only to connected hosts that request multicast traffic. Overview The IGMP feature: • Uses Version 3 of IGMP • Includes snooping, which can be enabled per VLAN 30 Switching Configuration
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