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One interesting thing that might be playing into it is that ae5 is split across both the 4500, and the 4550. I wonder if the issue is only when traffic goes from the 4200 to the 4500, and not the 4200 to the 4550. From: MICE Discuss [mailto:[log in to unmask]] On Behalf Of Matthew Beckwell Sent: Monday, September 19, 2016 3:30 PM To: [log in to unmask] Subject: Re: [MICE-DISCUSS] EX4200 (1G Switch) Packet Loss -> 10G Participants 10M UDP testing to Steve's network at Paul Bunyan (egress ae5), doesn't appear to have any loss. The same 10M UDP test to US Internet, egress xe-0/0/14 shows about 3-5% loss. Again, same 10M UDP test to the same US Internet destination IP forced out another transit provider shows 0 loss. This is certainly interesting....I'm not sure what's special about xe-0/0/14 vs ae5. Some kind of buffer or queue difference? ~Matthew On Mon, Sep 19, 2016 at 2:03 PM, Steve Howard <[log in to unmask]> wrote: On 09/19/2016 01:49 PM, Matthew Beckwell wrote: As to whether there's loss to one of the "remote" switches, I'm not sure.... If one of the Neutral Path/Mankato Networks/ CNS connected participants would be up for running iperf for a little while, we could find out fairly quickly. We've opened up our iperf3 server on 209.191.196.90 for a few hours. To unsubscribe from the MICE-DISCUSS list, click the following link: http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1