Quick Reference Guide

System Configuration Commands | 97
mtu (port)
This command sets the maximum transmission unit (MTU) size (in bytes) for the selected port.
Syntax
[no] mtu 1518-9216
For the standard implementation, the range is a valid integer between 1518–9216.
Enter no mtu to set the MTU for the interface to the default.
Default
1518
Note: The hardware on the 1-Gigabit ports automatically compensates for the tags on tagged packets.
For a 1-Gigabit port, the default setting of 1518 allows 1518-byte untagged and 1522-byte tagged
packets. Likewise, set to the maximum, a setting of 9216 will allow for tagged packets up to 9220
bytes.
The 10-Gigabit ports do not automatically allow for the length of a tag. For 10-Gigabit ports, the
default setting of 1518 means 1518 untagged or tagged. The maximum is 9216 bytes.
Mode
Interface Config
no monitor
This command removes all the source ports and a destination port and restores the default value for
mirroring session mode for all the configured sessions.
This is a stand-alone “no” command. This command does not have a “normal” form.
Default
enabled
Syntax
no monitor
Mode
Global Config
Related
Commands
monitor session Adds a mirrored port (source port) or mirroring port (destination port) to a session
identified with the session ID of 1.
mtu (port) Removes the destination port and all source ports from the mirroring
configuration.
show monitor session Shows the mirroring configuration.
Related
Commands
mtu (LAG) Sets the MTU for a selected port channel
ip mtu Sets the MTU on a routing interface (Interface Config or VLAN mode)
mtu (VLAN) Sets the MTU for a selected VLAN (VLAN mode)