10
Follow these steps to configure a static route with BFD control packet mode enabled (indirect session):
To do…
Use the command…
Remarks
Enter system view
system-view
—
ip
route-static
dest-address
{
mask
|
mask-length
}
next-hop-address
bfd
control-packet
bfd-source
ip-address
[
preference
preference-value
] [
tag
tag-value
] [
description
description-text
]
Configure a static route
and enable BFD control
packet mode for it
ip route-static vpn-instance
s-vpn-instance-name
&<1-6>
dest-address
{
mask
|
mask-length
}
next-hop-address
bfd
control-packet
bfd-source
ip-address
[
preference
preference-value
] [
tag
tag-value
] [
description
description-text
]
Required
Use either
command
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.
Follow these steps to configure BFD echo packet mode for static routes:
To do…
Use the command…
Remarks
Enter system view
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
NOTE:
•
If route flaps occur, enabling BFD could worsen them.
•
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.
Configuring static route FRR
NOTE:
Only the S5500-E1 Switch Series supports static route FRR.
When a link or a router fails, the packets on the path may be discarded, or a routing loop occurs. To
avoid such problems, you can enable static route fast reroute (FRR).
