288
Command Reference for IE200 Series Industrial Managed PoE+ Switches
C613-50066-01 REV A
AlliedWare Plus™ Operating System - Version 5.4.5I-0.x
I
NTERFACE
C
OMMANDS
MRU
JUMBO
mru jumbo
Overview
Use this command to enable the device to forward jumbo frames. For more
information, see the
Switching Feature Overview and Configuration Guide
.
When jumbo frame support is enabled, the maximum size of packets that the
device can forward is 9710 bytes of payload.
Use the no variant of this command to remove jumbo frame support, and restore
the default MRU size (1500 bytes) for switch ports.
NOTE
:
The figure of 1500 or 9710 bytes specifies the payload only. For an IEEE 802.1q frame,
provision is made (internally) for the following additional components:
•
Source and Destination addresses
•
EtherType field
•
Priority and VLAN tag fields
•
FCS
These additional components increase the frame size internally (to 1522 bytes in
the default case).
Syntax
mru jumbo
no mru
Default
By default, jumbo frame support is not enabled.
Mode
Interface Configuration for switch ports.
Usage
Note that
show interface
output will only show MRU size for switch ports.
We recommend limiting the number of ports with jumbo frames support enabled
to two.
Examples
To enable the device to forward jumbo frames on
port1.0.2
, use the
commands:
awplus#
configure terminal
awplus(config)#
interface port1.0.2
awplus(config-if)#
mru jumbo
To remove the jumbo frame support, and therefore restore the MRU size of 1500
bytes on
port1.0.2
, use the commands:
awplus#
configure terminal
awplus(config)#
interface port1.0.2
awplus(config-if)#
no mru
Related
Commands
show interface