Changing the default redistribution metric

You can change the default metric for the IS-IS routing protocol. The following task changes the default metric value for the IPv6 unicast address family.

Procedure

Enter the configure terminal command to access global configuration mode.
```
device# configure terminal
```
Enter the router isis command to enter IS-IS router configuration mode and enable IS-IS on the device.
```
device(config)# router isis
```
Enter the address-family ipv6 unicast command to enable ISIS address-family IPv6 unicast configuration mode.
```
device(config-isis-router)# address-family ipv6 unicast
```
Enter the default-metric command and specify a value to change the default metric value for the IPv6 unicast address family.
```
device(config-router-isis-ipv6u)# default-metric 45
```

Example

The following example sets the default value to 45 for the IPv6 unicast address family.

device# configure terminal
device(config)# router isis
device(config-isis-router)# address-family ipv6 unicast
device(config-router-isis-ipv6u)# default-metric 45