Cannot find option "BFD ECHO"
HI I use TMOS 12.1.5.3 and I found bfd echo option.... But I upgrade version TMOS 14.1.4.1, I cannot found option "bfd echo".... What happen this device...?(BIG-IP 2000 and 4000 it happened..) [root@ localhost:Active:Disconnected (Sync Only)] config # imish localhost.com[0]>en localhost.com[0]#show version ZebOS version 7.10.6 IPIRouter 02/09/21 13:08:55 Build # is ZebOS-7-10-6-IPI on host i686-pc-linux-gnu Copyright (C) 2001-2011 IP Infusion Inc.All rights reserved. localhost.com[0]# [root@ localhost:Active:Disconnected (Sync Only)] config # imish localhost.com[0]>en localhost.com[0]#conf t Enter configuration commands, one per line.End with CNTL/Z. localhost.com[0](config)#bfd ? gtsmbfd gtsm protection multihop-peerMultihop BFD session notificationbfd notifications slow-timerSet BFD slow-timer Interval I cannot find "echo" !!!! Plz help me.