Adaptive LSP configuration

Global revertiveness is enabled by default in FRR mode for an adaptive LSP.

About this task

Complete the following steps to configure an adaptive LSP.

Procedure

Configure the device.
```
device# configure
```
Enable the MPLS router.
```
device(config)# router mpls
```
Set the signaled label switched path (LSP).
```
device(config-router-mpls)# lsp t1
```
Set the egress router of the LSP.
```
device(config-router-mpls-lsp-t1)# to 10.3.3.3
```
In this example, the IP address of the egress router is 10.3.3.3.
Set the ingress router of the LSP.
```
device(config-router-mpls-lsp-t1)# from 10.2.2.2
```
In this example, the IP address of the ingress router is 10.2.2.2.
Set tie traffic engineering parameters mean rate in kbits. per second.
```
device(config-router-mpls-lsp-t1)# traffic-eng mean-rate 1000
```
In this example, the mean rate is set to 1000 kbits. per second.
Enable the LSP to be modified without disabling the LSP.
```
device(config-router-mpls-lsp-t1)# adaptive
```
Set-up for fast reroute options.
```
device(config-router-mpls-lsp-t1)# frr
```

Exit the current mode.

device(config-router-mpls-lsp-t1-frr)# exit

Example

The following example shows how to configure an LSP to be adaptive.

device# configure 
device(config)# router mpls
device(config-router-mpls)# lsp t1
device(config-router-mpls-lsp-t1)# to 10.3.3.3
device(config-router-mpls-lsp-t1)# from 10.2.2.2
device(config-router-mpls-lsp-t1)# traffic-eng mean-rate 1000
device(config-router-mpls-lsp-t1)# adaptive
device(config-router-mpls-lsp-t1)# frr
device(config-router-mpls-lsp-t1-frr)# exit
device(config-router-mpls-lsp-t1)# enable