enable isis hello-padding

enable isis [vlan all | {vlan} vlan_name] hello-padding

Description

This command enables the padding of hello PDUs on one or all VLANs.

Syntax Description


vlan all	Enables hello padding on all IS-IS VLANs.
`vlan_name`	Specifies a single VLAN on which hello padding is enabled.

Default

Enabled.

Usage Guidelines

When hello padding is enabled, IS-IS pads hello packets to the interface MTU. This is used among neighbors to verify that adjacencies have the same MTU configured on either end. The disadvantage of hello padding is the price of bandwidth consumed by larger packets.

Example

The following command enables hello padding on the SJvlan VLAN:

enable isis SJvlan hello-padding

History

This command was first available in ExtremeXOS 12.1.

Platform Availability

This command is available on platforms with a Premier license as described in the Switch Engine 32.2 Feature License Requirements document.