252 | Interfaces
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Setting Auto-Negotiation Options
The negotiation auto command provides a mode option for configuring an individual port to forced master/
forced slave after you enable auto-negotiation.
Table 13-5. Auto-Negotiation, Speed, and Duplex Settings on Different Optics
Figure 13-27 shows the auto-negotiation options.
Caution: Ensure that only one end of the node is configured as forced-master and the other is configured as
forced-slave. If both are configured the same (that is, both as forced-master or both as forced-slave), the show
interface
command flaps between an auto-neg-error and forced-master/slave states.
Command mode
10GbaseT
module
10G SFP+
optics 1G SFP optics
Copper SFP -
1000baseT Comments
speed 100 interface-config
mode
Supported Not supported
(Error
message is
thrown)
(% Error:
Speed 100 not
supported on
this interface,
config
ignored Te 0/
49)
Not supported
(Error message is
thrown)
(% Error: Speed 100
not supported on this
interface, config
ignored Te 0/49)
% Error: Speed
100 not
supported on
this interface,
speed auto interface-config
mode
Supported Not supportedNot supported Not supported Error messages
not thrown
wherever it says
not supported
speed 1000 interface-config
mode
Supported Supported Supported Supported
speed 10000 interface-config
mode
Supported Supported Not Supported Not supported Error messages
not thrown
wherever it says
not supported
negotiation auto interface-config
mode
Supported Not supported
(Should some
error message
be thrown?)
Not supported Not supported Error messages
not thrown
wherever it says
not supported
duplex half interface-config
mode
Supported CLI not
available
CLI not available Invalid Input
error- CLI not
available
duplex full interface-config
mode
Supported CLI not
available
CLI not available Invalid Input
error-CLI not
available
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