ECS4660-28F_Management Guide-R03

C HAPTER 31 | Interface Commands
Interface Configuration
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◆ For other traffic types, calculation of overall frame size is basically the
same, including the additional header fields SA(6) + DA(6) + Type(2) +
VLAN-Tag(4) (for tagged packets, for untaqged packets, the 4-byte
field will not be added by switch), and the payload. This should all be
less than the configured port MTU, including the CRC at the end of the
frame.
◆ For QinQ, the overall frame size is still calculated as described above,
and does not add the length of the second tag to the frame.
◆ The port MTU size can be displayed with the show show interfaces
status command.
EXAMPLE
The following first enables jumbo frames for layer 2 packets, and then sets
the MTU for port 1:
Console(config)#jumbo frame
Console(config)#interface ethernet 1/1
Console(config-if)#switchport mtu 9216
Console(config-if)#
RELATED COMMANDS
jumbo frame (911)
show interfaces status (1202)
clear counters This command clears statistics on an interface.
SYNTAX
clear counters interface
interface
ethernet unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 1-28)
port-channel channel-id (Range: 1-8)
vlan vlan-id (Range: 1-4094)
DEFAULT SETTING
None
COMMAND MODE
Privileged Exec
COMMAND USAGE
Statistics are only initialized for a power reset. This command sets the base
value for displayed statistics to zero for the current management session.
However, if you log out and back into the management interface, the