We had the same issue a couple of years ago, but I think we were at
different software version levels. I would have to check with my staff
person who handles our Enterasys switches, Art Ripley, for the details
but as I recall the root cause was due to incompatible port settings
between the two switches. Enterasys GTAC helped us solve this problem.
Here is one of our settings for a fiber port for an inter-switch link:
C3(su)->show port status ge.1.48
Alias Oper Admin Speed
Port (truncated) Status Status (bps) Duplex Type
--------- ------------ ------- ------- --------- ------- ------------
ge.1.48 Uplink Up Up 1.0G full Combo
RJ45/1000-lx/lhmm/PoE
C3(su)->show port advertise ge.1.48
ge.1.48 capability advertised remote
-------------------------------------------------
10BASE-T no no no
10BASE-TFD no no no
100BASE-TX no no no
100BASE-TXFD no no no
1000BASE-T no no no
1000BASE-TFD yes yes yes
pause yes no no
C3(su)->show port negotiation ge.1.48
auto-negotiation is enabled on port ge.1.48
C3(su)->show port speed ge.1.48
default speed is 1000 on port ge.1.48
C3(su)->show port duplex ge.1.48
default duplex mode is full on port ge.1.48
If this is the problem you are having, you can set the far-end port
settings first. You will lose connectivity but then you set the
near-end port settings and the link will come up.
Barron
Barron Hulver
Director of Networking, Operations, and Systems
Center for Information Technology
Oberlin College
148 West College Street
Oberlin, OH 44074
440-775-8798
[email protected]
http://www2.oberlin.edu/staff/bhulver/
On 9/22/13 8:43 AM, Emre Eryilmaz wrote:
> Hi,
>
> I updated C3 firmware 6.03.01.0008 to 6.61.09.0012 . But fibers links
> down on ge.1.23 and ge.1.24 .
> when I downgraded firmware 6.03.01.0008.It works(fibers links up).
>
> What could be the reason?
>
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