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DES-7200 Configuration Guide Chapter 1 MPLS Configuration
1-15
Caution
1. After TTL replication is enabled, the TTL of the inner header is not
copied but retained if it is smaller than the TTL of the outer header.
2. For the switches, the TTL of the inner header is directly copied from the
outer header during the PHP Pop operation, if TTL replication is
enabled. The TTL of the packets forwarded, however, does not
decrease by one. If TTL non-replication is enabled, the TTL of the inner
header does not copy that from the outer header. Instead, the TTL of
the inner header is retained. The TTL of packets forwarded also does
not decrease by one.
1.2.1.9 Verifying the MPLS Information
You can use the show commands in the privilege mode to view MPLS information and verify the
configuration results.
1. Display MPLS information.
Display the utilization information about the label space and the interfaces enabled with MPLS.
You can verify whether the configurations are accurate based on the information.
Command Function
DES-7200# show mpls summary
Display basic MPLS information.
2. Display the MPLS forwarding table.
Display the contents of MPLS forwarding entries and the contents of MPLS forwarding entries
added to an MPLS application protocol (such as LDP and MP-BGP).
Command Function
DES-7200# show mpls
forwarding-table [ip-address/mask]
[label label] [interface interface-name]
[next-hop ip-address] [ftn [ip | vc] ] [ilm
[ ip | vc ] ] [vrf vrf-name [ ftn | ilm ] ]
[detail] [sumary]
Display the information about the MPLS
forwarding table.
3. Display the utilization of the label pool.
Command Function
DES-7200# show mpls label-pool
Display information about the utilization of the
MPLS label pool.