When every TCP transmission has a retransmission what is going on?

asked 2023-10-16 21:20:53 +0000

Yardvark
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updated 2023-10-16 22:36:56 +0000

Pulled a 30-second trace from our main switch and found almost every single TCP transmission has a retransmission. I'm not sure what that means, but I doubt it's good. Our IT team is growing and I'm in the deep-end here, soaking up as much as I can from videos, but need some mentoring.

The topology looks like WAPS - Cisco 3560 Switch- Cisco 1841 Router - Internet

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answered 2023-10-17 06:13:35 +0000

Jaap

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You probably capture every packet twice, once on ingress, once on egress from the switch. Finetune your span configuration on the switch to either a specific port or direction.

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Asked: 2023-10-16 21:20:53 +0000

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Last updated: Oct 17 '23

When every TCP transmission has a retransmission what is going on? edit

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