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New Member

Sup 720 port 2 / SFP vs. TX

Is there anything to configure on the Sup 720 to use

port 2 as TX (RJ45) instead the SFP port ?

Thanks, Wolfgang

6 REPLIES
Cisco Employee

Re: Sup 720 port 2 / SFP vs. TX

Yes..You will need to configure the media type. By default it is the SFP port.

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/122sx/swcg/sup720.htm#wp1051988

In CAT OS, you would do

set port media-type mod/port {rj45 | sfp}

New Member

Re: Sup 720 port 2 / SFP vs. TX

Is this port supposed to support full duplex? I'm running 8.3(3) and I get an error saying that full duplex isn't supported on this port. When I do a show port capabilites, it says that only half duplex is supported. Is there something I'm missing?

Cisco Employee

Re: Sup 720 port 2 / SFP vs. TX

There is an internal bug for this issue

CSCef54418

Sup720 uplink 5/2 failed to set duplex with 10/100 speed.

Fix will be in 8.4(x) expected during end of October

New Member

Re: Sup 720 port 2 / SFP vs. TX

Thanks! That's exactly what I was looking for. I appreciate the detailed, fast response.

New Member

Re: Sup 720 port 2 / SFP vs. TX

I've got two 6509's running 8.3(3) connected via the Sup720 5/2 ports, both set as media type RJ45. One is forced to full/1000, and the other is set to auto/auto. The full/1000 side is running full/1000, and the auto/auto side is running a-full/a-1gb. Showing port capabilities does report each port as only capable of half duplex. Is the 'show port' command incorrectly reporting the ports running at full duplex?

Cisco Employee

Re: Sup 720 port 2 / SFP vs. TX

Thats part of the problem. It can do full duplex but reports it can do half duplex in sh port capabilities.

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