88
Step Command Remarks
PCEP sessions to the specified
PCEs. If you do not specify a
PCE, the local device
establishes PCEP sessions to
all discovered PCEs.
188B
Establishing a backup CRLSP by using the path calculated
by PCEs
Perform this task to enable the specified PCEs to calculate a backup CRLSP for the PCC. When the
primary CRLSP fails, traffic is switched to the backup CRLSP to ensure continuous traffic forwarding.
To establish a backup CRLSP by using the path calculated by PCEs:
Step Command Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MPLS TE tunnel
interface view.
interface tunnel
tunnel-number
[
mode mpls-te
]
N/A
3.
Enable tunnel backup
and specify the backup
mode.
mpls te
backup
{
hot-standby
|
ordinary
}
By default, tunnel backup is
disabled.
4.
Establish a backup
CRLSP by using the path
calculated by PCEs.
mpls te backup-path preference
value dynamic
pce
[
ip-address
]&<0-8>
By default, the automatically
calculated path is used to
establish a backup CRLSP.
After this command is executed,
the local device acts as a PCC
and establishes PCEP sessions
to the specified PCEs. If you do
not specify a PCE, the local
device establishes PCEP
sessions to all discovered PCEs.
189B
Configuring PCEP session parameters
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MPLS TE view.
mpls
te
N/A
3.
Set the path calculation
request timeout time.
pce
request-timeout
value
By default, the request timeout
time is 10 seconds.
4.
Set the PCEP session
deadtimer.
pce
deadtimer
value
By default, the PCEP session
deadtimer is 120 seconds.
5.
Set the keepalive interval for
PCEP sessions.
pce keepalive interval
By default, the keepalive
interval is 30 seconds.
6.
Set the minimum acceptable
keepalive interval and the
maximum number of allowed
unknown messages received
from the peer.
pce tolerance
{
min-keepalive
value
|
max-unknown-messages
value
}
By default, the minimum
acceptable keepalive interval is
10 seconds, and the maximum
number of allowed unknown
messages in a minute is 5.