Disabling hello padding for an IS-IS interface

By default, a device adds extra data to the end of a hello packet to make the packet the same size as the maximum length of PDU the device supports. The following task disables hello padding for an IS-IS Ethernet interface.

About this task

Procedure

Enter the configure terminal command to access global configuration mode.
```
device# configure terminal
```
Enter the interface ethernet command and specify an interface.
```
device(config)# interface ethernet 1/2
```
Enter the isis hello padding command with the disable parameter to disable hello padding for the IS-IS Ethernet interface.
```
device(conf-if-eth-1/2)# isis hello padding disable
```

Example

The following example disables hello padding for a specified IS-IS Ethernet interface.

device# configure terminal
device(config)# interface ethernet 1/2
device(conf-if-eth-1/2)# isis hello padding disable