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53-3
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 53 Configuring IPv4 for Gigabit Ethernet Interfaces
Basic Gigabit Ethernet Configuration for IPv4
• Configuring Promiscuous Mode, page 53-4
Configuring Interface Descriptions
See the “About Interface Descriptions” section on page 20-18 for details on configuring the switch port
description for any interface.
Configuring Beacon Mode
See the “About Beacon Mode” section on page 20-20 for details on configuring the beacon mode for any
interface.
Configuring Autonegotiation
By default, autonegotiation is enabled all Gigabit Ethernet interface. You can enable or disable
autonegotiation for a specified Gigabit Ethernet interface. When autonegotiation is enabled, the port
automatically detects the speed or pause method, and duplex of incoming signals based on the link
partner. You can also detect link up conditions using the autonegotiation feature.
To configure autonegotiation using Fabric Manager, follow these steps:
Step 1 Expand Switches > Interfaces > Ethernet > IPS.
You see the Gigabit Ethernet Configuration in the Information pane.
Step 2 In the General tab, you can enable or disable the Auto Negotiate option for a specific switch.
Step 3 Click Apply Changes.
Configuring the MTU Frame Size
You can configure the interfaces on a switch to transfer large (or jumbo) frames on a port. The default
IP maximum transmission unit (MTU) frame size is 1500 bytes for all Ethernet ports. By configuring
jumbo frames on a port, the MTU size can be increased up to 9000 bytes.
Note The minimum MTU size is 576 bytes.
Tip MTU changes are disruptive, all FCIP links and iSCSI sessions flap when the software detects a change
in the MTU size.
To configure the MTU frame size using Fabric Manager, follow these steps:
Step 1 Expand Switches > Interfaces > Ethernet > IPS.
You see the Gigabit Ethernet Configuration in the Information pane.
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