Table of Contents
Advertisement
Ethernet Port Commands
autonegotiate
Syntax
autonegotiate [limited]
[no] autonegotiate
Context
config>port>ethernet
Description
This command enables speed and duplex autonegotiation on Fast Ethernet ports and enables far-end fault
indicator support on gigabit ports.
There are three possible settings for autonegotiation:
• "on" or enabled with full port capabilities advertised
• "off" or disabled where there are no autonegotiation advertisements
• "limited" where a single speed/duplex is advertised.
When autonegotiation is enabled on a port, the link attempts to automatically negotiate the link speed and
duplex parameters. If autonegotiation is enabled, the configured duplex and speed parameters are ignored.
When autonegotiation is disabled on a port, the port does not attempt to autonegotiate and will only operate
at the speed and duplex settings configured for the port. Note that disabling autonegotiation on gigabit ports
is not allowed as the IEEE 802.3 specification for gigabit Ethernet requires autonegotiation be enabled for
far end fault indication.
If the autonegotiate limited keyword option is specified the port will autonegotate but will only advertise a
specific speed and duplex. The speed and duplex advertised are the speed and duplex settings configured
for the port. One use for limited mode is for multispeed gigabit ports to force gigabit operation while
keeping autonegotiation enabled for compliance with IEEE 801.3.
7710 SR OS requires that autonegotiation be disabled or limited for ports in a Link Aggregation Group to
guarantee a specific port speed.
The no form of this command disables autonegotiation on this port.
Default
autonegotiate
Parameters
limited — The Ethernet interface will automatically negotiate link parameters with the far end, but will only
advertise the speed and duplex mode specified by the Ethernet speed and duplex commands.
dot1q-etype
Syntax
dot1q-etype 0x0600..0xffff
no dot1q-etype
Context
config>port>ethernet
Description
This command specifies the Ethertype expected when the port's encapsualtion type is dot1q. Dot1q
encapsulation is supported only on Ethernet interfaces.
The no form of this command reverts the dot1q-etype value to the default.
Page 218
7710 SR OS Interface Configuration Guide
Advertisement
Table of Contents
