Alcatel-Lucent 6850-48 网络指南

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Configuring BFD
Quick Steps for Configuring BFD
OmniSwitch AOS Release 6 Network Configuration Guide
September 2009
page 30-7
Enable BFD for specific BGP neighbors using th
command or for all BGP 
neighbors using the 
command. For example:
-> ip bgp bfd-std all-neighbors
-> ip bgp neighbor neigh1 bfd-std enable
Configuring BFD Support for VRRP Track Policies
Register VRRP with the BFD protocol using the 
 command. For example:
-> vrrp bfd-std enable
Enable BFD for a specific track policy using the 
command. For example:
-> vrrp track 2 address 10.1.1.1 bfd-std enable
Make sure that the track policy is associated with at least one of the virtual routers. In addition, note that 
the value of the address parameter should be a remote interface address. BFD cannot be configured for a 
local interface address.
Note. To display the VRRP tracking policies on which BFD is enabled, use the 
command. 
-> show vrrp track
Track                                            Admin    Oper 
BFD
 ID                   Policy                     State    State  Pri   Status
-----+--------------------------------------+----------+------+-----+-----------
   1  25.25.25.1                               Enabled    Down    50   Enabled
   2  192.10.150.42 
Enabled    Down    25   Enabled
See the “VRRP Commands” chapter in the OmniSwitch CLI Reference Guide for information about the 
fields in this display.
Configuring BFD Support for Static Routes
Enable BFD support for a specific static route using the
all static routes using th
command. For example: 
-> ip static-route 10.1.1.1 255.0.0.0 gateway 10.1.1.25 bfd status enable
-> ip static-route all bfd-std enable
To create a BFD session for a static route, make sure the gateway address does not match any of the local 
interface addresses on the switch and that BFD is enabled on the interface on which the gateway address 
exists. If multiple routes are configured with the same gateway address, only one BFD session will run.
Note. To display the static routes on which BFD is enabled use th
 command. An asterisk 
appears before the gateway address of a BFD enabled static route. For example:
-> show ip route
+ = Equal cost multipath routes
* = BFD Enabled
Total 12 routes