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Community Member

Speed duplex command not availabe

Dear

I have 1 cisco 4507 switch with line cards WS-X4606-X2-E, WS-X4448-GB-SFP, WSX4548-GB-RJ45 and super visor WS-X45-Sup6E. I have IOS 12.2(50)SG3 .

Speed auto and duplex auto is only available for the ports WSX4548-GB-RJ45.

whats is the reason behind this, i need to configure both speed and duplex as auto for other ports except RJ45, like X2 and SFPs.

thanks.

8 REPLIES

Re: Speed duplex command not availabe

Hi,

Many optical ports do not support speed/duplex setting but other way is to use below commans

negotiation auto --> parameter fixed by negotiating with connected device

no negotiation auto--> parameter fixed as per port capability

if you want to configure speed/duplex auto use negotiation auto and also make sure other end is configured that way.

Regards

Mahesh

Community Member

Re: Speed duplex command not availabe

Dear mahesh

thanks you for the reply, but unfortunatly this command is also not available

CAT4507-DC-A(config-if)#negotiation auto
                                        ^
% Invalid input detected at '^' marker.

CAT4507-DC-A(config-if)#

my IOS is enterprise services.

Re: Speed duplex command not availabe

Please try with "speed nonegotiate" command

Regards

mahesh

Community Member

Re: Speed duplex command not availabe

dear

i already test this command, i have read from the ios guide that if this command is use with no, then speed and duplex is set to auto but it did'nt happened.

do i need to upgrade my IOS or there is some thing other problem, because these parameters are basics and is always available for every interface.

Re: Speed duplex command not availabe

yes,

I am using same switch with IOS 12.2(44)SG1 and  these commands are supported.(speed nonegotiate)

this is the reason i advise you to use this command

regards

mahesh

Community Member

Re: Speed duplex command not availabe

I am already using upgraded version of IOS 12.2(50)SG3,

Cisco Employee

Re: Speed duplex command not availabe

Does speed negotiation is turned off in a interface by default.

Or should we manually stop negotiation

Hall of Fame Super Gold

Re: Speed duplex command not availabe

I have 1 cisco 4507 switch with line cards WS-X4606-X2-E, WS-X4448-GB-SFP, WSX4548-GB-RJ45 and super visor WS-X45-Sup6E. I have IOS 12.2(50)SG3 .

Speed auto and duplex auto is only available for the ports WSX4548-GB-RJ45.

The reason why you can change the duplex and/or speed for the WSX4548-GB-RJ45 because it's rated for multi-speed:  10, 100 or 1000 BaseTx.

You cannot change the speed and duplex of the rest because they are rated for one and only speed:  Either 1Gb or 10Gb. 

WS-X4448-GB-SFP  - means it will negotiate only in 1Gb

WS-X4606-X2-E - means that it will only negotiate in 10Gb.

You can't even use 100-Megabit Ethernet SFP Modules or 100BASE-FX SFP because it's not supported on the  X4448.

Cisco 100-Megabit Ethernet SFP Modules Compatibility Matrix

http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/OL632702.html#wp62767

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