> # About the DHCHAP Timeout Value

> During the DHCHAP protocol exchange, if the MDS switch does not receive the expected DHCHAP message within a specified time interval, authentication failure is assumed. The time ranges from 20 (no authentication is performed) to 1000 seconds. The default is 30 seconds.

> When changing the timeout value, consider the following factors:

> - The existing RADIUS and TACACS+ timeout values.

> The same value must also be configured on all switches in the fabric.

> Copyright 2010-2013, Cisco Systems, Inc. All rights reserved.