Cisco Catalyst 2960-XR Configuration Manual page 87

Configuring System MTU
SUMMARY STEPS
1. configure terminal
2. system mtu bytes
3. system mtu jumbo bytes
4. system mtu routing bytes
5. end
6. copy running-config startup-config
7. reload
8. show system mtu
DETAILED STEPS
Command or Action
Step 1 configure terminal
Example:
Switch# configure terminal
Step 2 system mtu bytes
Example:
Switch(config)# system mtu 2500
Step 3 system mtu jumbo bytes
Example:
Switch(config)# system mtu jumbo 7500
Step 4
system mtu routing bytes
Example:
Switch(config)# system mtu routing 2000
Step 5
end
Example:
Switch(config)#
Step 6 copy running-config startup-config
Example:
Switch# copy running-config
startup-config
OL-29420-01
end
Catalyst 2960-XR Switch Interface and Hardware Component Configuration Guide, Cisco IOS Release 15.0(2)EX1
Purpose
Enters global configuration mode.
(Optional) Changes the MTU size for all Fast Ethernet interfaces on
the switch.
The range is 1500 to 1998 bytes; the default is 1500 bytes.
(Optional) Changes the MTU size for all Gigabit Ethernet and
10-Gigabit Ethernet interfaces on the switch or the switch stack.
The range is 1500 to 9198 bytes; the default is 1500 bytes.
(Optional) Changes the system MTU for routed ports. 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.
This command is not supported on switches running the
Note
LAN base feature set.
Returns to privileged EXEC mode.
Saves your entries in the configuration file.
Configuring the System MTU
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