System Mtu - Cisco ME 3400 Command Reference Manual
Ethernet access switch
Hide thumbs
Also See for ME 3400:
- Software configuration manual (1138 pages) ,
- Command reference manual (872 pages) ,
- Hardware installation manual (88 pages)
Table of Contents
Advertisement
Chapter 2 Cisco ME 3400 Ethernet Access Switch Cisco IOS Commands
system mtu
Use the system mtu global configuration command to set the maximum packet size or maximum
transmission unit (MTU) size for Gigabit Ethernet ports or for Fast Ethernet (10/100) ports or to set an
alternate MTU for specific ports. Use the no form of this command to restore the global MTU value to
its default value.
Note
Though visible in the command line help, the routing keyword is supported only when the switch is
running the metro IP access image.
Syntax Description
bytes
alternate bytes
alternate interface
{interface-id | range
interface-range}
jumbo bytes
routing bytes
Defaults
The default MTU size for all ports is 1500 bytes. However, if you configure a different value for the
system MTU, that configured value becomes the default MTU size for routed ports when it is applied
following a switch reset.
Command Modes
Global configuration
Command History
Release
12.2(25)EX
OL-9640-10
system mtu {bytes | alternate {bytes | interface interface-id} | jumbo bytes | routing bytes}
no system mtu
Set the system MTU for ports that are set to 10 or 100 Mb/s. The range is
1500 to 1998 bytes. The default is 1500 bytes. This is the maximum MTU
received at 10/100-Mb/s Ethernet switch ports.
Define an alternate frame size (MTU) to be applied to specific interfaces.
The range is between the configured system MTU and the configured jumbo
MTU size (1500 to 9000 bytes). The default is 1500 bytes.
Apply the alternate MTU to the specified interface or range of interfaces.
Set the system jumbo frame size (MTU) for Gigabit Ethernet ports. The
range is 1500 to 9000 bytes. The default is 1500 bytes. This is the maximum
MTU received at the physical port for Gigabit Ethernet ports.
Set the maximum MTU for routed packets. You can also set the maximum
MTU to be advertised by the routing protocols that support the configured
MTU size. The range is 1500 bytes to the system MTU value. The system
routing MTU is the maximum MTU for routed packets and is also the
maximum MTU that the switch advertises in routing updates for protocols
such as OSPF.
Modification
This command was introduced.
Cisco ME 3400 Ethernet Access Switch Command Reference
system mtu
2-695
Advertisement
Table of Contents
