Example 1138 Snapshot of Link Bandwidth on 12008a

12 00 8a#show ip rsvp interface

interface allocated i/f max flow max sub max

POC/C

CG

18 66M

18 6 6M

CG

PO1/C

1CCK

4 6 65CCK

4 665CCK

CG

PO1/1

1CM

4 6 65CCK

4 665CCK

CG

PO2/C

CG

11625CK

11625CK

CG

PO2/1

CG

155M

155M

CG

Fa4/C

CG

CG

CG

CG

Tu1

CG

CG

CG

CG

Tu2

CG

CG

CG

CG

Tu3

CG

CG

CG

CG

Several show commands related to TE information distribution were presented in this section. The show commands essentially provide the current state information. However, if you want to catch the LSAs as they leave a router or as they arrive at a router, you can use debug commands. Table 11-4 gives you the show commands and the equivalent debug commands. As with any debug commands, be aware that it is not wise to turn them on in a production environment unless you know it produces a small amount of data. Turning off logging console and turning on logging buffered is also advised when you use debugs, especially in a production network.

Table 11-4. show and the Equivalent debug Commands for Checking Information

Distribution

Table 11-4. show and the Equivalent debug Commands for Checking Information

Distribution

show Command

debug Command

show mpls traffic-eng link-management advertisements

debug mpls traffic-eng link-management advertisements

show ip ospf database opaque-area

debug ip ospf mpls traffic-eng advertisements

show isis mpls traffic-eng advertisements

debug isis mpls traffic-eng advertisements

This concludes the PCALC section. The next section assumes that the path is valid, but that you are having an RSVP signalling problem.

RSVP Signalling Problems

When the headend shows that the path is valid, but the tunnel is down, it is because of a signalling problem. How do you identify a problem in signalling? What are the symptoms of a signalling problem?

The first sign, of course, is that the tunnel is down. As with troubleshooting PCALC problems, the output of show mpls traffic-eng tunnels [tunnel] plays a key role in determining the cause of a tunnel's being down. Example 1139 shows you a portion of the output from Example 11-22.

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