> # Task Flow for Migrating Interfaces from Shared Mode to Dedicated Mode

> The 48-Port, 24-Port, and 4/44-Port 8-Gbps Fibre Channel switching modules support the following features:

> - 1-Gbps, 2-Gbps, 4-Gbps, and 8-Gbps speed traffic
> - Shared and dedicated rate mode
> - ISL and Fx port modes
> - Extended BB_credits

> The 48-port and 24-port 4-Gbps Fibre Channel switching modules support the following features:

> - 1-Gbps, 2-Gbps, and 4-Gbps speed traffic
> - Shared and dedicated rate mode
> - ISL (E or TE) and Fx (F or FL) port modes
> - Extended BB_credits

> Note If you change the port bandwidth reservation parameters on a 48-port or 24-port 4-Gbps module, the change affects only the changed port. No other ports in the port group are affected.

> To configure the 4-Gbps and 8-Gbps Fibre Channel switching modules when starting with the default configuration or when migrating from shared rate mode to dedicated rate mode, follow these steps:

> 1. Take unused interfaces out of service to release resources for other interfaces, if necessary.

> See the "Taking Interfaces Out of Service" topic.

> 2. Configure the traffic speed to use (1 Gbps, 2 Gbps, 4 Gbps, 8 Gbps, or autosensing with a maximum of 2 Gbps or 4 Gbps).

> See the "Configuring Port Speed" topic.

> 3. Configure the rate mode (dedicated or shared).

> See the "Configuring Rate Mode" topic.

> 4. Configure the port mode.

> See the "Configuring Interface Modes" topic.

> Note ISL ports cannot operate in shared rate mode.

> 5. Configure the BB_credits and extended BB_credits, as necessary.

> See the "Configuring Buffer-to-Buffer Credits" topic and the "Configuring Extended BB_credits" topic.

> Copyright 2010-2015, Cisco Systems, Inc. All rights reserved.