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TX RX Packet Loss

I have an E20.  I'm getting transmit (TX) packet loss above 15 percent.  However, my receive (RX) packet loss is 0 percent.  The distant endpoint is the inverse - TX = 0 percent & RX = 15 percent plus.  Looking at the switch port, I've got no dropped packets or CRC errors.  So, one question I have is how is the packet loss being calculated?  More importantly, what can I look at?  I've checked my cables and they are good.  One E20 is in campus bldg. A and the other is across the city if that helps.

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Rising star

Re: TX RX Packet Loss


This community does not provide technical support and is not staffed with technical support experts. I recommend you post this and future technical support questions to the Cisco Support Community ( where our Cisco technical support experts provide debugging assistance.   Another option is to open a ticket with the Cisco Technical Assistance Center ( to get expert debugging assistance.

We do encourage you to participate in the Cisco Collaboration Community and to also join our Cisco Collaboration User Group program!  In the community, we encourage your discussion/sharing around collaboration topics and Cisco Collaboration Solutions, including business and IT requirements, industry trends, process, culture/organization issues, how collaboration can be used to transform businesses, vendor selection, adoption, training, architecture, licensing, and product features/functionality. If you are a customer or partner, you can also join the user group program to be eligible for member-only events and influence product direction.

We hope to hear from you again.

Kelli Glass

Moderator for the Cisco Collaboration Community

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