Setting Auto-Negotiation and Advertised Ability
4-14 Port Configuration
Mode
Switchcommand,read‐write.
Example
ThisexampleshowshowtoresetjumboframesupportstatusforGigabitEthernetport14inslot 3:
D2(su)->clear port jumbo ge.3.14
Setting Auto-Negotiation and Advertised Ability
Purpose
Toreview,disableorenableauto‐negotiation,andtoconfigureportadvertisementforspeedand
duplex.
Duringauto‐negotiation,theport“tells”thedeviceattheotherendofthesegmentwhatits
capabilitiesandmodeofoperationare.Ifauto‐negotiationisdisabled,theportrevertstothe
valuesspecified
bydefaultspeed,defaultduplex,andtheportflowcontrolcommands.
Innormaloperation,withallcapabilitiesenabled,advertisedabilityenablesaportto“advertise”
thatithastheabilitytooperateinanymode.Theusermaychoosetoconfigureaportsothatonly
aportionofitscapabilities
areadvertisedandtheothersaredisabled.
Referto“ConfiguringSFPPortsfor100BASE‐FX”onpage 4‐2forinformationonconfiguring
settingsfor100MbSFPports.
Commands
show port negotiation
Usethiscommandtodisplaythestatusofauto‐negotiationforoneormoreports.
Syntax
show port negotiation [port-string]
Note: Advertised ability can be activated only on ports that have auto-negotiation enabled.
For information about... Refer to page...
show port negotiation 4-14
set port negotiation 4-15
show port advertise 4-15
set port advertise 4-16
clear port advertise 4-17
