3com S7906E Manuel De Montage

 

1-4 

A dynamic routing protocol notifies BFD of its neighbor information. BFD uses such information to 

establish sessions with neighbors by sending BFD control packets. Static routing, which has no 

neighbor discovery mechanism, implements BFD as follows:  

To use BFD control packets for bidirectional detection between two devices, you need to enable BFD 

control packet mode for each device’s static route destined to the peer.  

Follow these steps to configure BFD control packet mode for static routes:  

Enter system view 

— 

ip route-static dest-address { mask | mask-length } 
interface-type interface-number next-hop-address bfd 
control-packet [ preference preference-value ] [ tag 
tag-value ] [ description description-text ] 

Enable BFD control 
packet mode for static 
routes 

ip route-static vpn-instance 
s-vpn-instance-name&<1-6> dest-address { mask | 
mask-length } interface-type interface-number 
next-hop-address bfd control-packet [ preference 
preference-value ] [ tag tag-value ] [ description 
description-text ] 

Use either 
command 

 

With BFD echo packet mode enabled for a static route, the local device sends BFD echo packets to the 

peer, which loops it back to test the link in between. 

Follow these steps to configure BFD echo packet mode for static routes: 

Enter system view 

— 

Configure the source 
address of echo 
packets 

bfd echo-source-ip ip-address 

Required 

Not 
configured by 
default 

ip route-static dest-address { mask | mask-length } 
interface-type interface-number next-hop-address bfd 
echo-packet [ preference preference-value ] [ tag 
tag-value ] [ description description-text ] 

Enable BFD echo 
packet mode for static 
routes 

ip route-static vpn-instance 
s-vpn-instance-name&<1-6> dest-address { mask | 
mask-length } interface-type interface-number 
next-hop-address bfd echo-packet [ preference 
preference-value ] [ tag tag-value ] [ description 
description-text ] 

Use either 
command