Configure the port mode | Cisco Systems DSC9148D8G48PK9 manual

Chapter 3 Configuring Fibre Channel Interfaces

Configuring Fibre Channel Interfaces

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:

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

See the “Taking Interfaces Out of Service” section on page 3-41.

Step 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” section on page 3-29.

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

See the “Configuring Rate Mode” section on page 3-30.

Step 4 Configure the port mode.

See the “Configuring Interface Modes” section on page 2-22.

Note ISL ports cannot operate in shared rate mode.

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

See the “Configuring Buffer-to-Buffer Credits” section on page 4-21and the “Configuring Extended BB_credits” section on page 4-23.

Task Flow for Migrating Interfaces from Dedicated Mode to Shared Mode

To configure the 4-Gbps and 8-Gbps Fibre Channel switching modules migrating from dedicated rate mode to shared rate mode, follow these steps:

Step 1 Take unused interfaces out of service to release resources for other interfaces, if necessary. See the “Taking Interfaces Out of Service” section on page 3-41.

Step 2 Configure the BB_credits and extended BB_credits, as necessary.

See the “Configuring Buffer-to-Buffer Credits” section on page 4-21, and the “Extended BB_Credits” section on page 4-17.

Step 3 Configure the port mode.