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After a link failure occurs, BFD may detect the failure before the system performs GR. As a result, GR will
fail. If GR capability is enabled for BGP, use BFD with caution. If GR and BFD are both enabled, do not
disable BFD during a GR process; otherwise, GR may fail. For BFD configuration, see
High Availability
Configuration Guide
.
IMPORTANT:
Before configuring BFD for BGP, you must enable BGP.
To enable BFD for a BGP peer:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view.
bgp
as-number
N/A
3.
Enable BFD for the specified
BGP peer.
peer
ip-address
bfd
Not enabled for any BGP peer by
default.
Displaying and maintaining BGP
Displaying BGP
Task Command
Remarks
Display peer group information.
display bgp group
[
group-name
] [
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
Display advertised BGP routing
information.
display bgp
network
[
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
Display AS path information.
display bgp paths
[
as-regular-expression
|
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
Display BGP peer or peer group
information.
display bgp peer
[
ip-address
{
log-info
|
verbose
} |
group-name
log-info
|
verbose
] [
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
Display the prefix information in
the ORF packet from the specified
BGP peer.
display bgp
peer
ip-address
received ip-prefix
[
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
Display BGP routing information.
display bgp routing-table
[
ip-address
[
{
mask
|
mask-length
}
[
longer-prefixes
] ] ] [
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
Display routing information
matching the AS path list.
display bgp routing-table as-path-acl
as-path-acl-number
[
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
Display BGP CIDR routing
information.
display bgp routing-table cidr
[
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
Display BGP routing information
matching the specified BGP
community.
display bgp routing-table community
[
aa:nn
&<1-13> ] [
no-advertise
|
no-export
|
no-export-subconfed
] * [
whole-match
] [
|
{
begin
|
exclude
|
include
}
regular-expression
]
Available in
any view
