Cisco Systems WSC2960X48TDL Configuring System MTU, Information about the MTU, C H A P T E R

C H A P T E R 6

Configuring System MTU

This module contains the following sections:

•Finding Feature Information, page 71

•Information about the MTU, page 71

•How to Configure MTU Sizes, page 72

•Configuration Examples for System MTU, page 73

•Additional References for System MTU, page 74

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Information about the MTU

The default maximum transmission unit (MTU) size for frames received and transmitted on all interfaces is 1500 bytes. You can increase the MTU size for all interfaces operating at 10 or 100 Mb/s by using the system mtu global configuration command. You can increase the MTU size to support jumbo frames on all Gigabit Ethernet interfaces by using the system mtu jumbo global configuration command.

System MTU Guidelines

When configuring the system MTU values, follow these guidelines:

•The default maximum transmission unit (MTU) size for frames received and transmitted on all interfaces is 1500 bytes. You can increase the MTU size for all interfaces operating at 10 or 100 Mb/s by using

Catalyst 2960-X Switch Interface and Hardware Component Configuration Guide, Cisco IOS Release 15.0(2)EX

OL-29034-01 71