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DES-7200 Configuration Guide Chapter 1 MPLS Configuration
1-31
DES-7200(config)# no mpls static ilm in-label 16
Configuring a Static ILM on the PHP LSR
Since the second but last hop should perform PHP, its ILM entries are different from those on
other intermediate LSRs. That is, the outgoing label in the ILM of the PHP LSR on the LSP
should be an implicit null label (3).
Caution
For information about the PHP, refer to related materials.
For example, you are required to configure a global ILM on the PHP LSR of the LSP. The LSR
pops out the incoming label 17 and sends the packets from GigabitEthernet 2/2. The next hop
address is 192.168.12.12 and the corresponding FEC is 192.168.1.0/24. Run the following
command:
DES-7200(config)# mpls static ilm in-label 17 forward-action swap-label 3 nexthop
GigabitEthernet 2/2 192.168.11.11 fec 192.168.1.0/24
To delete the ILM, run the following command:
DES-7200(config)# no mpls static ilm in-label 17
1.2.4 Example for Configuring Basic
MPLS Functions
Figure 4
As shown in the preceding figure, three MPLS devices are deployed to construct an MPLS
network. The following introduces the setup of an LSP through the LDP and the setup of a static
LSP to show the MPLS configuration procedures.
1.2.4.1 Setting Up an LSP Through LDP
The LDP works only with IPv4 routes. Here, OSPF is enabled to set up IPv4 routes. Before the
following configurations, make sure that you have created a loopback interface (Loopback 0) and