Dell C9000 Line Cards Networking Configuration Guide for the C9000 Series Vers - Page 605
Configuring FEFD, Local, Event, Local State, Remote, State, Admin, Status, Protocol
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4. If the FEFD enabled system is configured to use FEFD in Normal mode and neighboring echoes are not received after three intervals, the state changes to unknown. You can set each interval from 3 to 255 seconds. 5. If the FEFD system has been set to Aggressive mode and neighboring echoes are not received after three intervals, the state changes to Err-disabled. You must manually reset all interfaces in the Errdisabled state using the fefd reset [interface] command in EXEC privilege mode (it can be done globally or one interface at a time) before the FEFD enabled system can become operational again. Table 45. State Change When Configuring FEFD Local Event Mode Local State Remote State Local Admin Status Shutdown Normal Admin Unknown Down Shutdown Shutdown Aggressive Admin Unknown Up Shutdown FEFD enable Normal Bi- Bi- Up directional directional FEFD enable Aggressive Bi- Bi- Up directional directional FEFD + FEFD disable Normal Locally disabled Unknown Up FEFD + FEFD disable Aggressive Locally Err- Up disabled disabled Link Failure Normal Unknown Unknown Up Link Failure Aggressive Unknown Unknown Up Local Protocol Status Down Remote Admin Status Up Remote Protocol Status Down Down Up Down Up Up Up Up Up Up Down Up Down Up Up Down Down Up Down Up Down Down Important Points to Remember • FEFD is supported only on physical Ethernet interfaces, except the management interface. • FEFD is not supported on copper Ethernet and Fibre Channel ports. FEFD is supported only on fiber Ethernet ports. • FEFD is not supported on port extender (PE) ports. • You can enable FEFD globally or on a per-interface basis. Interface FEFD configurations override global FEFD configurations. Configuring FEFD You can configure FEFD on all interfaces from CONFIGURATION mode or on individual interfaces from INTERFACE mode. To enable FEFD globally on all interfaces, use the following command. • CONFIGURATION mode fefd-global Layer 2 605
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