cat3750 with 10Ge span

Unanswered Question
Jan 25th, 2008
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I have a Cat3750G with 10Ge uplink ports. I am trying to span multiple ports to the 10Ge interface, which connects to a Mazu. The 10Ge interface does not show any error. However, the Mazu 10Ge interface show a ton of errors. TCPdump show many tcp checksum errors off the Mazu interface. I am not sure why the Mazu is showing ton of errors where the switch 10ge interface shows none?

Can the 10ge uplink port be configured for a destination span port?

Or what are the chances of compatibility issues?

BTW: traffic span to the 1Ge interface show no errors.

Cisco Command Reference shows

"If a 10-Gigabit Ethernet port is configured as a SPAN or RSPAN destination port, the line rate of the link decreases."

Does anyone know what it decrease to?


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