System Mtu - Cisco Catalyst 3560-X Command Reference Manual
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system mtu
system mtu
Syntax Description
Defaults
Command Modes
Command History
Catalyst 3750-X and 3560-X Switch Command Reference
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Use the system mtu global configuration command on the switch stack or on a standalone switch to set
the maximum packet size or maximum transmission unit (MTU) size for Gigabit Ethernet (10/100/1000)
ports, or for 10-Gigabit ports, or for routed ports. Use the no form of this command to restore the global
MTU value to its default value. In a mixed hardware stack, you can also configure Fast Ethernet (10/100)
ports on Catalyst 3750 members.
system mtu {bytes | jumbo bytes | routing bytes}
no system mtu [jumbo | routing]
bytes
In a mixed hardware stack, change the MTU size for all Fast Ethernet
interfaces on the Catalyst 3750 members.
The range is 1500 to 1998 bytes; the default is 1500 bytes.
Note
jumbo bytes
Set the system MTU for Gigabit Ethernet ports and 10-Gigabit Ethernet
ports. The system jumbo MTU is the maximum MTU received at the Gigabit
Ethernet and 10-Gigabit Ethernet ports.
For information about the range for bytes, see
Guidelines" section.
routing bytes
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 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.
For information about the range for bytes, see
Guidelines" section.
Note
The default MTU size for all ports is 1500 bytes.
The default value for the system routing MTU is the system MTU value.
Global configuration
Release
Modification
12.2(53)SE2
This command was introduced.
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Chapter 2 Catalyst 3750-X and 3560-X Cisco IOS Commands
This keyword does not apply to Catalyst 3560-X switches. Switch
stacks running the LAN base feature set do not support mixed
hardware stacks.
This keyword is not supported on switches running the LAN base
feature set.
Table 2-56
in the "Usage
Table 2-56
in the "Usage
OL-21522-02
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