S6700 auto negotiation

Latest reply: Jul 17, 2014 10:39:12 5952 4 0 0

I have just received my first 2 Huawei switches, the S6700.

Unfortunately I am having problems connecting clients to the switch as it appears the switch does not support auto-negotiation.

I am running version V100R006C00SPC800, with patch V100R006SPH017.

When trying to enable auto-negotiation on a port I get the following error:

Error: This port or this mode doesn't support this command.

Any idea how I can enabled auto-negotiation on this switch?

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Created Jul 17, 2014 10:39:12 Helpful(0) Helpful(0)

Hi Paul,


Auto negotiation is fully supported and is switched on by default.

You can disable it using the "undo negotiation auto" command on the interface.

You can then manually specify a speed and duplex setting using the "speed xxx" and the "duplex xxx" commands.

The ports support auto negotiation of speed, duplex and mdi/mdix by default and I have never seen any negotiation issues on these switches!

You also have the "virtual-cable-test" command to test for cable problems on the link, although this is service affecting.

Have you tried connecting the switches to each other or from port to port on a switch to prove the cables and the ports come up?


Regards Nigel


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Created Jul 15, 2014 15:00:33 Helpful(0) Helpful(0)

undo negotiation
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Created Jul 15, 2014 15:07:55 Helpful(0) Helpful(0)

Sorry, it did not work.

[sw4-c16-dc1-XGigabitEthernet0/0/3]undo negotiation
Error:Incomplete command found at '^' position.
[sw4-c16-dc1-XGigabitEthernet0/0/3]undo negotiation ?
  auto  Auto negotiation

[sw4-c16-dc1-XGigabitEthernet0/0/3]undo negotiation auto
Error: This port or this mode doesn't support this command.

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Created Jul 16, 2014 11:20:39 Helpful(0) Helpful(0)

Does this switch even support auto negotiation?
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