Disabling Echo Mode; Disabling Echo Mode On A Router - Cisco NCS 6000 Series Configuration Manual

Disabling Echo Mode

Disabling Echo Mode
BFD does not support asynchronous operation in echo mode in certain environments. Echo mode should be
disabled when using BFD for the following applications or conditions:
• BFD with uRPF (IPv4)
• To support rack reload and online insertion and removal (OIR) when a BFD bundle interface has member
You can disable echo mode for BFD on the entire router, or for a particular interface.

Disabling Echo Mode on a Router

To disable echo mode globally on the router complete the following steps:
DETAILED STEPS
SUMMARY STEPS
1. configure
2. bfd
3. echo disable
4. commit
DETAILED STEPS
Command or Action
Step 1 configure
Step 2 bfd
Example:
RP/0/RP0/CPU0:router(config)# bfd
Step 3 echo disable
Example:
RP/0/RP0/CPU0:router(config-bfd)# echo disable
Step 4
commit
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
156
links that span multiple racks.
Note
BFD echo mode is automatically disabled for BFD on physical interfaces when
the minimum interval is greater than two seconds. The minimum interval does
not affect echo mode on BFD bundle member links. BFD echo mode is also
automatically disabled for BFD on bundled VLANs and IPv6 (global and link-local
addressing).
Purpose
Enters BFD configuration mode.
Disables echo mode on the router.
Implementing BFD