87
Step Command
Remarks
In current MPLS TE applications,
tunnels are established usually by
using the make-before-break
mechanism. As a best practice, use
the SE style.
60B
Configuring an MPLS TE tunnel to use a CRLSP
calculated by PCEs
185B
Configuring a PCE
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MPLS TE view.
mpls
te
N/A
3.
Configure a PCE IP address.
pce
address
ip-address
By default, no PCE address is
configured.
186B
Discovering PCEs
After the PCE is manually specified or dynamically discovered, a PCC sends a PCEP connection
request to the PCE, but it does not accept a request from the PCE.
392B
Manually specifying a PCE
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MPLS TE view.
mpls
te
N/A
3.
Specify the IP address of the PCE.
pce
static
ip-address
By default, no PCE peers exist.
393B
Dynamically discovering PCEs
OSPF TE advertises PCE IP addresses for PCCs and other PCEs to dynamically discover the PCEs
and establish PCEP sessions to them. For OSPF TE configuration, see "
739H
Configuring OSPF TE
."
187B
Establishing a 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.
Establish a CRLSP by
using the path calculated
by PCEs.
mpls
te
path
preference
value
dynamic
pce
[
ip-address
]&<0-8>
By default, the automatically
calculated path is used to
establish a CRLSP.
After this command is
executed, the local device acts
as a PCC and establishes