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New Member

link up/down

Hi people

I have a very strange problem and I really hope I can tap into the foutain of knowledge available out there.

I am running a very simple switched network using a combination of 2900 and 3500 xl switches. They are remote to each other, connected across wireless bridges (not cisco).

ex.

3500 xl - site 1

ptp

2900 xl - site 2

ptp

3500 xl - site 3

Both 3500 are using the same versions of software.

The link between site 1 and site 2 is running fine but between site 2 and site 3 I keep on getting momentary line up/downs that last seconds. Initially I thought this was due to a simple duplex mismatch as the port was configured for auto but if I configure the port for full I get frame and crc errors. The ptp is set to auto.

I have swapped the cable, port and ptp unit. Equipment on both ptps is the same.

Any ideas gratefully received.

Thanks

1 REPLY
New Member

Re: link up/down

Can you set the speed and duplex on the ptp? If so make sure you have them both the same

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