Specifications

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Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
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Chapter 10 Cisco IGX 8400 Series IP Service
IP Service Provisioning
Step 11 If the LSCs and IGX switches show the interfaces are up but the LSC does not show this, enter the
following command on the LSC:
Router LSC1# reload
If the show mpls interfaces command shows that the interfaces are up but the ping does not work, enter
the following command on the LSC (see Example 10-7):
Router LSC1# show tag tdp disc
Example 10-7 Sample show tag tdp disc Command Output
Local TDP Identifier:
30.30.30.30:0
TDP Discovery Sources:
Interfaces:
ExtTagATM1.3: xmit/recv
ExtTagATM2.2: xmit/recv
-----------------
Step 12 If the interfaces on the display show “xmit” and not “xmit/recv,” then the LSC is sending LDP messages,
but not getting responses. Enter this command on the neighboring LSRs.
Router LSC1# sh tag tdp disc
If resulting displays also show “xmit” and not “xmit/recv,” then one of two things is probable:
a. The LSC is not able to set up VSI connections.
b. The LSC is able to set up VSI connections, but cells are not transferred because they cannot get into
a queue.
Step 13 Check the VSI configuration on the switch again, for interfaces 3.1, 3.3, and 4.2, paying attention to:
a. Maximum bandwidths at least a few thousand cells per second
b. Qbins enabled
c. All Qbin thresholds nonzero
Note VSI partitioning and resources must be correctly set up on the interface connected to the LSC, interface
3.1 (in this example), and interfaces connected to other label switching devices.
MPLS VPN Sample Configuration
Before configuring VPN operation, your network must run the following Cisco IOS services:
• Label switching connectivity with generic routing encapsulation (GRE), tunnels configured among
all provider (PE) routers with VPN service, or label switching in all provider (P) routers backbone
• Label switching with VPN code in all provider routers with VPN edge service (PE) routers
• BGP in all routers providing a VPN service
• CEF switching in every label-enable router
• GRE
• Cisco series routers