10G switch drops traffic for a split second

Tue Nov 29 16:29:52 UTC 2016

What model switch?
What's the config look like, all L2 or L3 as well?

Luke Guillory
Network Operations Manager

Tel:    985.536.1212
Fax:    985.536.0300
Email:  lguillory at reservetele.com

Reserve Telecommunications
100 RTC Dr
Reserve, LA 70084

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-----Original Message-----
From: NANOG [mailto:nanog-bounces at nanog.org] On Behalf Of TJ Trout
Sent: Tuesday, November 29, 2016 3:06 AM
To: nanog at nanog.org
Subject: 10G switch drops traffic for a split second

I recently upgraded my core network from 1G to 10G and after the upgrade I have noticed that my 10G switch during peak traffic (1500mbps, 100,000pps) seems to be dropping traffic for a split second across all ports and all vlans. I immediately replaced the switch with a different brand/model and the problem persists.

Sometimes traffic drops to zero, others it drops to 50%, problem is very random but seems to occur with much more frequency during high PPS (pushing high traffic / iperf does not induce problem)

Could this be MTU? I've tried flow control, hard code duplex, stp on/off etc

I'm at a loss any ideas?

TJ Trout
Volt Broadband