H3C Technologies H3C SecPath F1000-E - Manual (Page 364)

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BFD echo packet mode
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.
IMPORTANT:
•
Enabling BFD for a flapping route could worsen the situation.
• For the echo mode, only one end needs to establish the BFD session, and the source address of echo
packets must be configured.
• BFD cannot be used for a static route with the outbound interface having the spoofing attribute.
To configure BFD echo packet mode for static routes:
Step Command Remarks
1. Enter system view. system-view N/A
2. Configure the
source address of
echo packets. bfd echo-source-ip ip-address
Not configured by
default.
3. Enable BFD echo
packet mode for
static routes.
• Approach 1:
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 ]
• Approach 2:
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 approach.
Displaying and maintaining static routes
Task Command Remarks
Display information of static
routes.
display ip routing-table protocol static [ inactive |
verbose ] [ | { begin | exclude | include }
regular-expression ]
Available in any
view
Delete all the static routes.
delete [ vpn-instance vpn-instance-name ]
static-routes all Available in
system view
For more information about the display ip routing-table protocol static [ inactive | verbose ] [ | { begin
| exclude | include } regular-expression ] command, see Network Management Command Reference.