Dell Force10 S4820T FTOS Command Reference Guide - Page 1136

www.dell.com | support.dell.com Usage Information Related Commands Version 7.5.1.0 pre-Version 6.1.1.1 Introduced on C-Series Introduced on E-Series The command area range summarizes routes for the different areas. With "not-advertise" parameter configured, this command can be used to filter out some external routes. For example, you want to redistribute static routes to OSPF, but you don't want OSPF to advertise routes with prefix 1.1.0.0. Then you can configure summary-address 1.1.0.0 255.255.0.0 not-advertise to filter out all the routes fall in range 1.1.0.0/16. area range Summarizes routes within an area. timers spf c e s Syntax Parameters Defaults Command Modes Command History Usage Information Set the time interval between when the switch receives a topology change and starts a shortest path first (SPF) calculation. timers spf delay holdtime To return to the default, enter no timers spf. delay holdtime Enter a number as the delay. Range: 0 to 4294967295. Default: 5 seconds Enter a number as the hold time. Range: 0 to 4294967295. Default: 10 seconds. delay = 5 seconds; holdtime = 10 seconds ROUTER OSPF Version 8.3.19.0 Version 8.3.7.0 Version 7.8.1.0 Version 7.6.1.0 Version 7.5.1.0 pre-Version 6.1.1.1 Introduced on S4820T Introduced on S4810 Introduced support of Multi-Process OSPF. Introduced on S-Series Introduced on C-Series Introduced on E-Series Setting the delay and holdtime parameters to a low number enables the switch to switch to an alternate path quickly but requires more CPU usage. 1136 | Open Shortest Path First (OSPFv2)