contains tagged members with Link MTU of 1522 and IP MTU of 1500 and
untagged members with Link MTU of 1518 and IP MTU of 1500. The VLAN’s Link
MTU cannot be higher than 1518 bytes and its IP MTU cannot be higher than
1500 bytes.
The following shows the difference between Link MTU and IP MTU.
Layer 2 Overhead
Link MTU and IP MTU Delta
Ethernet
(untagged)
18 bytes
VLAN Tag
22 bytes
Untagged Packet
with VLAN-Stack
Header
22 bytes
Tagged Packet
with VLAN-Stack
Header
26 bytes
negotiation auto
Enable auto-negotiation on an interface.
Syntax
negotiation auto
To disable auto-negotiation, use the
no negotiation auto
command.
Defaults
Enabled.
Command
Modes
INTERFACE
Command
History
Version 9.2(0.0)
Introduced on the M I/O Aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.
Version 8.3.16.1
Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
The
no negotiation auto
command is only available if you first manually set
the speed of a port to
10Mbits
or
100Mbits
.
The
negotiation auto
command provides a
mode
option for configuring an
individual port to forced-master/forced slave after you enable auto-negotiation.
If you do not use the
mode
option, the default setting is
slave
. If you do not
configure forced-master or forced-slave on a port, the port negotiates to either a
master or a slave state. Port status is one of the following:
• Forced-master
• Force-slave
• Master
1474
PMUX Mode of the MXL 10/40GbE Switch I/O Module