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Frame size, Jumbo frame, Table 47: frame size commands – LevelOne GTL-2691 User Manual

Page 776

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C

HAPTER

24

| System Management Commands

Frame Size

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E

XAMPLE

Console#show version

Unit 1

Serial Number : S123456

Hardware Version : R0A

EPLD Version : 1.06

Number of Ports : 26

Main Power Status : Up

Redundant Power Status : Not present

Role : Master

Loader Version : 1.3.2.3

Linux Kernel Version : 2.6.19.2-0.1

Boot ROM Version : 0.0.0.1

Operation Code Version : 1.4.2.0

Console#

F

RAME

S

IZE

This section describes commands used to configure the Ethernet frame size

on the switch.

jumbo frame

This command enables support for layer 2 jumbo frames for Gigabit and

10 Gigabit Ethernet ports. Use the no form to disable it.

S

YNTAX

[no] jumbo frame

D

EFAULT

S

ETTING

Disabled

C

OMMAND

M

ODE

Global Configuration

C

OMMAND

U

SAGE

This switch provides more efficient throughput for large sequential data

transfers by supporting jumbo frames on Gigabit and 10 Gigabit

Ethernet ports or trunks of up to 9216 bytes. Compared to standard

Ethernet frames that run only up to 1.5 KB, using jumbo frames

significantly reduces the per-packet overhead required to process

protocol encapsulation fields.

To use jumbo frames, both the source and destination end nodes (such

as a computer or server) must support this feature. Also, when the

connection is operating at full duplex, all switches in the network

Table 47: Frame Size Commands

Command

Function

Mode

jumbo frame

Enables support for jumbo frames

GC