Dell PowerConnect 8100 CLI Reference Guide - Page 411
Default Configuration, Command Mode, User Guidelines, Example, show interfaces advertise, Syntax
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Default Configuration The default number of bytes is 1518 (1522 bytes of VLAN-tagged frames). Command Mode Interface Configuration (Ethernet, Port-channel) mode 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 | fortygigabitethernet unit/slot/port}] Ethernet Configuration Commands 411
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