Dell PowerEdge M420 Dell PowerConnect M8024-k User's Configuration Guide - Page 69

Connectivity Fault Management (IEEE 802.1ag) NOTE: The Connectivity Fault Management feature is available only on the PowerConnect M6348. The Connectivity Fault Management (CFM) feature, also known as Dot1ag, supports Service Level Operations, Administration, and Management (OAM). CFM is the OAM Protocol provision for end-to-end service layer instance in carrier networks. The CFM feature provides mechanisms to help you perform connectivity checks, fault detection, fault verification and isolation, and fault notification per service in a network domain. For information about configuring IEEE 802.1ag settings, see "Configuring Connectivity Fault Management" on page 771. Cisco Protocol Filtering The Cisco Protocol Filtering feature (also known as Link Local Protocol Filtering) filters Cisco protocols that should not normally be relayed by a bridge. The group addresses of these Cisco protocols do not fall within the IEEE defined range of the 802.1D MAC Bridge Filtered MAC Group Addresses (01-80-C2-00-00-00 to 01-80-C2-00-00-0F). For information about configuring LLPF, settings see "Configuring PortBased Traffic Control" on page 691. DHCP Layer 2 Relay This feature permits Layer 3 Relay agent functionality in Layer 2 switched networks. The switch supports L2 DHCP relay configuration on individual ports, link aggregation groups (LAGs) and VLANs. For information about configuring L2 DHCP Relay settings see "Configuring L2 and L3 Relay Features" on page 919. Switch Features 69