27
Step Command
Remarks
device will send unsolicited
IPv4 Targeted Hellos to the
peer and can respond to IPv4
Targeted Hellos received from
the targeted peer.
send IPv4 Targeted Hellos to
any peers, or respond to IPv4
Targeted Hellos received from
any peers.
4.
Set the Keepalive hold time.
mpls ldp timer
keepalive-hold
timeout
By default, the Keepalive hold
time is 45 seconds.
5.
Set the Keepalive interval.
mpls ldp timer
keepalive-interval interval
By default, the Keepalive
interval is 15 seconds.
6.
Configure the LDP transport
address.
mpls ldp transport-address
ipv4-address
By default, the LDP transport
address is the LSR ID of the
local device.
342B
Configuring LDP IPv6 sessions parameters for Extended Discovery mechanism
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter LDP view.
mpls ldp
N/A
3.
Specify an IPv6 LDP peer and
enter LDP peer view. The
device will send unsolicited
IPv6 Targeted Hellos to the
peer and can respond to IPv6
Targeted Hellos received from
the targeted IPv6 peer.
targeted-peer
ipv6-address
By default, the device does not
send IPv6 Targeted Hellos to
any peers, or respond to IPv6
Targeted Hellos received from
any peers.
4.
Set the Keepalive hold time.
mpls ldp timer
keepalive-hold
timeout
By default, the Keepalive hold
time is 45 seconds.
5.
Set the Keepalive interval.
mpls ldp timer
keepalive-interval interval
By default, the Keepalive
interval is 15 seconds.
6.
Configure the LDP transport
address.
mpls ldp transport-address
ipv6-address
By default, the LDP IPv6
transport address is not
configured.
36B
Configuring LDP backoff
If LDP session parameters (for example, the label advertisement mode) are incompatible, two LDP
peers cannot establish a session, and they will keep negotiating with each other.
The LDP backoff mechanism can mitigate this problem by using an initial delay timer and a maximum
delay timer. After failing to establish a session to a peer LSR for the first time, LDP does not start an
attempt until the initial delay timer expires. If the session setup fails again, LDP waits for two times
the initial delay before the next attempt, and so forth until the maximum delay time is reached. After
that, the maximum delay time will always take effect.
To configure LDP backoff:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter LDP view or enter
LDP-VPN instance view.
•
Enter LDP view:
mpls ldp
•
Enter LDP-VPN instance
N/A