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

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

Yardvark
1 ●1 ●3

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

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

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

Jaap

13742 ●711 ●115

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.

edit flag offensive delete link

add a comment

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools

1 follower

Stats

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

Seen: 520 times

Last updated: Oct 17 '23

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

1 Answer