R3721-F3210-F3171-HP High-End Firewalls Network Management Configuration Guide-6PW101

321
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:
Ste
p
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.
Basic static route configuration example at the CLI
Network requirements
The firewalls' interfaces and the hosts’ IP addresses and masks are shown in Figure 233. Static routes are
required for interconnections between any two hosts.