Dell PowerConnect J-EX4200-24T Software Manual page 1047

mtu
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mtu bytes;
[edit interfaces interface-name]
Statement introduced before Junos OS Release 10.2 for J-EX Series switches.
Specify the maximum transmission unit (MTU) size for the media. Changing the media
MTU size causes an interface to be deleted and added again. Keep the following points
in mind if you are configuring MTU size for jumbo frames on these special types of
interfaces:
For LAG interfaces—Configuring the jumbo MTU size on a link aggregation group (LAG)
interface ( ) automatically configures the jumbo MTU size on the member links.
aex
For RVIs—Jumbo frames of up to 9216 bytes are supported on the routed VLAN interface
(RVI), which is named
vlan
packets on the RVI, you must configure the jumbo MTU size on the member physical
interfaces of the RVI and not on the RVI itself (the
control packets—for example, to ping the RVI with a packet size of 6000 bytes or
more—you must explicitly configure the jumbo MTU size on the interface named
(the RVI).
CAUTION: Setting or deleting the jumbo MTU size on the RVI (the
interface) while the switch is transmitting packets might result in dropped
packets.
1514 bytes
—MTU size.
bytes
Range: 256 through 9216 bytes
Default: 1514 bytes
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Configuring Gigabit Ethernet Interfaces (CLI Procedure) on page 919
Configuring Gigabit Ethernet Interfaces (J-Web Procedure) on page 909
Configuring Routed VLAN Interfaces (CLI Procedure) on page 1137
Junos OS Network Interfaces Configuration Guide at
http://www.juniper.net/techpubs/software/junos/
Chapter 55: Configuration Statements for Interfaces
. The RVI functions as a logical router. To route jumbo data
vlan
interface). However, for jumbo
vlan
vlan
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