User's Manual

Table Of Contents

Configuration Guide of XGS-5240-Series

135

Chapter 15 MTU Configuration

15.1 Introduction to MTU

So far the Jumbo (Jumbo Frame) has not reach a determined standard in the industry

(including the format and length of the frame). Normally frames sized within 1519-9000 should

be considered jumbo frame. Networks with jumbo frames will increase the speed of the whole

network by 2% to 5%. Technically the Jumbo is just a lengthened frame sent and received by

the switch. However considering the length of Jumbo frames, they will not be sent to CPU. We

discard the Jumbo frames sent to CPU in the packet receiving process.

15.2 MTU Configuration Task Sequence

1. Configure enable MTU function

Command

Explanation

Global Mode

mtu [<mtu-value>]

no mtu enable

Enable the receiving/sending function of MTU

frame. The no command disables sending

and receiving function of MTU frames.