Dell Force10 S4820T FTOS Command Reference Guide - Page 621

Parameters seconds (OPTIONAL) For SONET interfaces with PPP encapsulation enabled, enter the number of seconds between keepalive packets. Range: 0 to 23767 Default: 10 seconds Defaults Enabled Command Modes INTERFACE Command History Version 8.3.19.0 Version 8.3.7.0 Version 8.1.1.2 Version 7.6.1.0 Version 7.5.1.0 pre-Version 6.2.1.0 Introduced on S4820T Introduced on S4810 Introduced on E-Series ExaScale Introduced on S-Series Introduced on C-Series Introduced for E-Series Usage Information When you configure keepalive, the system sends a self-addressed packet out of the configured interface to verify that the far end of a WAN link is up. When you configure no keepalive, the system does not send keepalive packets and so the local end of a WAN link remains up even if the remote end is down. lfs enable (EtherScale) e Enable Link Fault Signaling (LFS) on EtherScale 10 Gigabit Ethernet interfaces only. Syntax lfs enable To disable LFS, enter no lfs enable. Defaults Enabled. Command Modes INTERFACE (10 Gigabit Ethernet interfaces only) Command History Usage Information pre-Version 6.1.1.0 Introduced for E-Series If there is a failure on the link, FTOS brings down the interface. The interface will stay down until the link failure signal stops. Note: On TeraScale line cards, LFS is always enabled by default. link debounce-timer e Assign the debounce time for link change notification on this interface. Syntax link debounce [milliseconds] Interfaces | 621