36
Task Command
Display LDP-IGP synchronization
information.
display mpls ldp igp sync
[
interface
interface-type
interface-number
]
Display LDP LSP information.
display mpls ldp lsp
[
vpn-instance
vpn-instance-name
]
[
destination-address
mask-length
]
Display LDP running parameters.
display mpls ldp parameter
[
vpn-instance
vpn-instance-name
]
Display LDP peer and session
information.
display mpls ldp peer
[
vpn-instance
vpn-instance-name
]
[
peer-lsr-id
] [
verbose
] [
standby slot
slot-number
]
Display LDP summary information.
display mpls ldp summary
[
all
|
vpn-instance
vpn-instance-name
]
[
standby slot
slot-number
]
LDP configuration examples
LDP LSP configuration example
Network requirements
Switch A, Switch B, and Switch C all support MPLS.
Configure LDP to establish LSPs between Switch A and Switch C, so subnets 11.1.1.0/24 and 21.1.1.0/24
can reach each other over MPLS.
Configure LDP to establish LSPs only for destinations 1.1.1.9/32, 2.2.2.9/32, 3.3.3.9/32, 11.1.1.0/24,
and 21.1.1.0/24 on Switch A, Switch B, and Switch C.
Figure 17
Network diagram
Requirements analysis
•
To ensure that the LSRs establish LSPs automatically, enable LDP on each LSR.
•
To establish LDP LSPs, configure a routing protocol to ensure IP connectivity between the LSRs. This
example uses OSPF.
•
To control the number of LSPs, configure an LSP generation policy on each LSR.
Configuration procedure
1.
Configure IP addresses and masks for interfaces, including the loopback interfaces, as shown
in
. (Details not shown.)
2.
Configure OSPF on each switch to ensure IP connectivity between them:
Loop0
2.2.2.9/32
Vlan-int3
20.1.1.1/24
Loop0
3.3.3.9/32
Loop0
1.1.1.9/32
Vlan-int2
10.1.1.1/24
Vlan-int2
10.1.1.2/24
Vlan-int3
20.1.1.2/24
Switch A
Switch B
Switch C
11.1.1.0/24
21.1.1.0/24
Vlan-int4
11.1.1.1/24
Vlan-int5
21.1.1.1/24