> # Configuring Port Administrative Speeds

> ## Restrictions

> - Changing the port administrative speed is a disruptive operation.

> ## Detailed Steps

> To configure the administrative speed of the interface using DCNM-SAN, follow these steps:

> 1. Expand Switches > FC Interfaces > Physical.

> You see the interface configuration in the Information pane.

> 2. Click the General tab.
> 3. Click Speed Admin. Set the desired speed from the drop-down menu.

> The number indicates the speed in megabits per second (Mbps). You can set the speed to 1-Gbps, 2-Gbps, 4-Gbps, 8-Gbps, autoMax2G, autoMax4G, or auto (default).

> Note On a Cisco Nexus 5000 Series switch that runs Cisco NX-OS Release 4.2(2), you can configure the 8-Gbps administrative speed only on a M1060 switch module. You can configure the speed to 1-Gbps, 2-Gbps, or 4-Gbps on all switch modules on a Cisco Nexus 5000 Series switch that runs Cisco NX-OS Release 4.2(2) or earlier releases.

> 4. Click Apply Changes.

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