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Beginner

Nexus 3048 interface speed-duplex setting not working

I have two Nexus 3048 switches with different NX-OS versions - 7.0(3)I7(6) and 9.2(1 ) - but the same symptoms: when I set the speed/duplex to 100Full it operates at 100Half even it the remote end at 100Full to. It seems auto-negotiation is always on.


# show system internal ethpm info interf ethernet 1/1

[...]

Admin Config Information:
state(up), mode(access), speed(100 Mbps), duplex(Full), medium_db(0), fec(auto), port-type(not-fabric)
layer(L2), dce-mode(edge), description(), transmit-reset-skip(0)
auto neg(on), auto mdix(on), beacon(off), num_of_si(0)
config auto neg(on) openflow(0) switchport_isolated(0)

[...]

Operational (Runtime) Information:
state(up-1), mode(access), speed(100 Mbps), duplex(Half), fec(auto)
state reason(None), error(no error-2)

[...]

1 ACCEPTED SOLUTION

Accepted Solutions
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Beginner

It seems I have to insert the command "no negotiate auto" in interface config. This command is not available in 7.0(3)I7(6) and 9.2(1 ) but it works in 9.2(4).

 

Problem solved !

View solution in original post

3 REPLIES 3
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VIP Advocate

 

                  >...even it the remote end at 100Full to it.

 - Can you elaborate on this phrase, I find it confusing.

 M.

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VIP Mentor

Adding to another post, what is the distance between the end device and nexus 3K? what kind of cable is this?

 

Cat5 ? or Cat5E ?

 

BB
*** Rate All Helpful Responses ***
Highlighted
Beginner

It seems I have to insert the command "no negotiate auto" in interface config. This command is not available in 7.0(3)I7(6) and 9.2(1 ) but it works in 9.2(4).

 

Problem solved !

View solution in original post

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