S/N/K-Series 10G Ports may not support Auto-negotiation Changes

  • 0
  • 1
  • Article
  • Updated 5 years ago
  • (Edited)
Article ID: 15084 

Products
S-Series
Matrix N-Series DFE
K-Series 

Changes
Issued the 'set port negotiation...' command in order to modify the local auto-negotiation state, or issued one of the 'set port advertise...' or 'clear port advertise...' (13285) commands in order to adjust feature advertisement to the attached peer port. 

Symptoms
10-gigabit ports tend to respond to such commands with an error message; for example:
S1 Chassis(su)->set port negotiation tg.1.1 disable
tg.1.1 does not support specified feature.
S1 Chassis(su)->clear port advertise tg.1.1 bpause
failed to get ifMauAutoNegCapAdvertisedBits on port tg.1.1.
tg.1.1 failed to be set.
S1 Chassis(su)->
Cause
Of 10-gigabit port media types (9852), only a RJ45 "10GBase-T" connection supports auto-negotiation disablement/re-enablement or adjustment of auto-negotiation advertisement. 

Any other 10G port type - whether copper or fiber - supports neither of these and will generate error messaging, the meaning of which may or may not be clear. 

Solution/Workaround
Functions as Designed (FAD). 

Workaround: In the case of a desired advertisement change, if the attached peer device supports the operation then make the change there. The auto-negotiated result will be the highest functionality that the two attached ports are advertised to support.
Photo of FAQ User

FAQ User, Official Rep

  • 13,620 Points 10k badge 2x thumb

Posted 5 years ago

  • 0
  • 1

There are no replies.

This conversation is no longer open for comments or replies.