Re: Force 100 Full Duplex (V210)


Ceri Davies wrote:
I suspect that rahan knows that, but in every institution I have
worked at, Cisco <-> Sun autonegotiation has failed to work. Perhaps he
is finding the same.

I'll comment as the administrator of a large number of Cisco switches
.....

Auto-negotiation works well with current Sun and Cisco hardware. It was
problematic with some older hardware.

For example, the original Catalyst 5000 switch cards did not support
auto-negotiation. Later models did support auto-negotiation. When you
migrate to newer switch hardware, it is easiest to keep the port
settings the same.

I have also seen issues with certain older Sun hardware not
re-negotiating if the cable is unplugged or if the switch is rebooted.
The computer will happily keep running in full-duplex mode while the
switch defaults to half-duplex because it didn't see the negotiation
process. (We still get bit by this one about every six months or so.)

The combination of these two issues forced us to set ports to 100/Full
until recently.

With current Cisco switches and current Sun hardware, auto-negotiation
should be used.

casevh

.

Relevant Pages

  • Re: Force 100 Full Duplex (V210)
    ... Auto-negotiation works well with current Sun and Cisco hardware. ... the original Catalyst 5000 switch cards did not support ...
    (comp.unix.solaris)
  • Re: Force 100 Full Duplex (V210)
    ... Cisco Sun autonegotiation has failed to work. ... I'll comment as the administrator of a large number of Cisco switches ... Auto-negotiation works well with current Sun and Cisco hardware. ... the original Catalyst 5000 switch cards did not support ...
    (comp.unix.solaris)
  • Re: Excessive Collisions After FC1 Installation
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  • Re: Force 100 Full Duplex (V210)
    ... I'll comment as the administrator of a large number of Cisco switches ... Auto-negotiation works well with current Sun and Cisco hardware. ... re-negotiating if the cable is unplugged or if the switch is rebooted. ...
    (comp.unix.solaris)
  • Re: Sun and Cisco hard-set NIC
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