09-24-2010 09:45 PM - edited 03-06-2019 01:10 PM
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.
09-24-2010 10:41 PM
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
09-24-2010 10:58 PM
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.
09-24-2010 11:00 PM
Please try with "speed nonegotiate" command
Regards
mahesh
09-24-2010 11:12 PM
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.
09-24-2010 11:21 PM
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
09-24-2010 11:29 PM
I am already using upgraded version of IOS 12.2(50)SG3,
01-27-2011 05:19 AM
Does speed negotiation is turned off in a interface by default.
Or should we manually stop negotiation
01-27-2011 01:45 PM
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
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