DELL S50V User Manual

Bidirectional Forwarding Detection | 181

To establish a BFD session:

Verify that sessions have been created for static routes using the command 

, as shown 

, as shown 

.

Changing static route session parameters

BFD sessions are configured with default intervals and a default role. The parameters that can be 
configured are: Desired TX Interval, Required Min RX Interval, Detection Multiplier, and system role. 
These parameters are configured for all static routes; if you change a parameter, the change affects all 
sessions for static routes.

To change parameters for static route sessions:

View session parameters using the command 

, as shown in 

.

Disabling BFD for static routes

If BFD is disabled, all static route BFD sessions are torn down. A final Admin Down packet is sent to all 
neighbors on the remote systems, and those neighbors change to the Down state (

).

1

Establish BFD sessions for all neighbors that are the next hop 
of a static route.

CONFIGURATION

1

Change parameters for all static route 
sessions.

ip route bfd interval milliseconds

 

 multiplier value role 

[

|

]

CONFIGURATION

R1(conf)#ip route 2.2.3.0/24 2.2.2.2

R1(conf)#ip route bfd

R1(conf)#do show bfd neighbors

*       - Active session role

Ad Dn   - Admin Down

C       - CLI

I       - ISIS

O       - OSPF

R       - Static Route (RTM)

  LocalAddr       RemoteAddr      Interface State Rx-int Tx-int Mult Clients

  2.2.2.1         2.2.2.2         Gi 4/24   Up    100    100    4       R