Dell Networking 7048, Reference Manual

Page: 419 / 1788

Ethernet Configuration Commands
419
User Guidelines
Because the switch does not fragment frames, received frames that are larger
than the MTU setting are dropped. Packets originated by the CPU are
fragmented on transmission if the link MTU is smaller than the IP MTU.
Setting the MTU less than the IPv4 MTU causes CPU-generated IPv4
packets to be fragmented. Setting the MTU less than the IPv6 MTU causes
CPU-generated IPv6 packets to be dropped. Setting the MTU also
automatically adjusts the IPv4 MTU. Port-channel and interface MTU
settings are configured and maintained independently. Setting the MTU on a
port-channel adjusts the operational MTU of an interface when the interface
is a member of a LAG. The operational MTU is reset back to the interface
MTU setting when the interface leaves the LAG.
Use the
show interfaces mtu
command to show the interface MTU.
Example
The following example of the mtu command increases maximum packet size
to 9216 bytes.
console(config-if-1/0/5)#mtu 9216
show interfaces advertise
Use the show interfaces advertise command in Privileged EXEC mode to
display information about auto-negotiation advertisement. The display
includes the local configuration and link partner advertisement, in addition
to the local advertisement.
Syntax
show interfaces advertise [{ gigabitethernet unit/slot/port |
tengigabitethernet unit/slot/port }]
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode, Config mode and all Config sub-modes
2CSPC4.X7000-SWUM204.book Page 419 Friday, March 15, 2013 8:22 AM