Riverstone Networks RS 8000 Betriebsanweisung Seite 333

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Riverstone Networks RS Switch Router User Guide Release 8.0 17-25
MPLS Configuration LDP Configuration
The following shows LDP filter commands configured on the router rs1. The first command specifies that bindings for
6.6.6.6/32 from the neighbor router 6.6.6.6 are not to be used for LSP establishment. The second command allows all
other bindings from the same neighbor router to be accepted and used for LSP establishment. Note that the more
restrictive filter command has the lower sequence number and will be executed first.
Note that if you run the
ldp show database verbose
command on rs1 (see the following example), the label
binding for 6.6.6.6/32 appears in router rs1’s LDP database, but it is marked as “Filtered” (shown in boldface in the
example) and is therefore not considered on rs1 for LSP establishment.
rs1(config)# ldp add import-filter mapping network 6.6.6.6/32 restrict neighbor 6.6.6.6
sequence 1
rs1(config)# ldp add import-filter mapping network all neighbor 6.6.6.6 sequence 2
rs1# ldp show database verbose
Input label database, 1.1.1.1:0-6.6.6.6:0
Label Prefix
2051 1.1.1.1/32
State:Active
2052 3.3.3.3/32
State:Active
16 6.6.6.6/32
State:Active, Filtered
Output label database, 1.1.1.1:0-6.6.6.6:0
Label Prefix
2049 3.3.3.3/32
State:Active
16 1.1.1.1/32
State:Active
Input label database, 1.1.1.1:0-3.3.3.3:0
Label Prefix
2050 1.1.1.1/32
State:Active
16 3.3.3.3/32
State:Active
Output label database, 1.1.1.1:0-3.3.3.3:0
Label Prefix
2049 3.3.3.3/32
State:Active
16 1.1.1.1/32
State:Active
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