4000 Router Series Interface Configuration Guide

Configuring the link mode of an Ethernet interface

CAUTION:

fter you chan

e the link mode of an Ethernet interface, all commands (except the shutdown command)

on the Ethernet interface are restored to their defaults in the new link mode.

Ethernet interfaces of the device can operate either as Layer 2 or Layer 3 Ethernet interfaces (you can set

the link mode to bridge or route).

To change the link mode of an Ethernet interface:

Step Command Remarks

1. Enter system view.

system-view N/A

2. Enter Ethernet interface view.

interface interface-type

interface-number

N/A

3. Change the link mode of the

Ethernet interface.

port link-mode { bridge | route }

By default, only Ethernet

interfaces on SIC-4FSW and

DSIC-9FSW cards operate in

bridge mode.

Configuring jumbo frame support

Jumbo frame support allows an interface to process jumbo frames within the specified range. Jumbo

frames refer to the frames larger than the standard Ethernet frames. An Ethernet interface might receive

jumbo frames during high-throughput data exchanges, such as file transfers. Without jumbo frame

support enabled, the interface discards jumbo frames.

To configure jumbo frame support on an Ethernet interface:

Step Command Remarks

1. Enter system view.

system-view N/A

2. Enter Ethernet interface

view.

interface interface-type

interface-number

N/A

3. Configure jumbo frame

support.

jumboframe enable [ value ]

By default, the device allows jumbo

frames within the specified length to

pass through Ethernet interfaces. The

length of jumbo frames that are

allowed to pass depends on the

interface type.