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Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Chapter 11 Configuring Interface Characteristics
Configuring the Cisco Redundant Power System 2300
If you enter a value that is outside the allowed range for the specific type of interface, the value is not
accepted.
This example shows how to set the maximum packet size for a Gigabit Ethernet port to 7500 bytes:
Switch(config)# system jumbo mtu 7500
Switch(config)# exit
Switch# reload
This example shows the response when you try to set Gigabit Ethernet interfaces to an out-of-range
number:
Switch(config)# system mtu jumbo 25000
^
% Invalid input detected at '^' marker.
Configuring the Cisco Redundant Power System 2300
You can configure and manage the Cisco Redundant Power System 2300, also known as the RPS 2300.
Note The Catalyst 3750 and 3560 switches do not support the power rps user EXEC command. You cannot
configure the redundant power system (RPS) name, RPS port name, or RPS port priority on these
switches.
Follow these guidelines:
• The RPS name is a 16-character-maximum string.
• On a Catalyst 3560-E or a standalone Catalyst 3750-E switch, the RPS name applies to the
connected RPS 2300.
• In a switch stack, the RPS name applies to the RPS ports connected to the specified switch.
• If you do not want the RPS 2300 to provide power to a switch, but do not want to disconnect the
RPS cable between the switch and the RPS 2300, use the power rps switch-number port rps-port-id
mode standby user EXEC command.
Step 4
system mtu bytes (Optional) 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 This command does not apply to
Catalyst 3560-E switches.
Step 5
end Return to privileged EXEC mode.
Step 6
copy running-config startup-config Save your entries in the configuration file.
Step 7
reload Reload the operating system.
Step 8
show system mtu Verify your settings.
Command Purpose