 |
 |
Mathew, Is the dropped traffic crossing the Exchange from the 4200 to one of the other switches or is it random? Thank you, *Levi Pederson* Mankato Networks LLC cell | 612.481.0769 work | 612.787.7392 [log in to unmask] On Mon, Sep 19, 2016 at 1:37 PM, Matthew Beckwell <[log in to unmask]> wrote: > Greetings, > I wanted to see if anyone here has any thoughts on a small amount (<1%) of > packet loss I've been trying to chase down, specific to the MICE EX4200 > switch. > > Aitech/AS13746 has a 1G copper port on the EX4200 switch. It seems that > we're seeing a small amount of outbound packet loss (1G to 10G) going > participants outside of the EX4200 switch. > > I might expect this going from 10G to 1G (inbound for us), but it's the > opposite where we see the problem: 1G to 10G participants. > > Doug at ipHouse (ge-1/0/3 on the EX4200) fired up iperf and we did some > testing. They're in the same situation: Loss leaving the EX4200. > Specifically, I was testing over to US Internet (xe-0/0/14) but seeing it > via Onvoy as well. > > The iperf test I was running was UDP, bandwidth of 69000, and packet size > of 172, running in both directions. Essentially--emulating a G.711 SIP > call (which is how I noticed the loss). I tested with no loss in both > directions within the EX4200. > > Doug mentioned: > > >I pulled the VC chassis stats, but it has nothing for drops or > re-transmits for it. > > Maybe some of our Juniper-centric members have suggestions? It's quite > possible it's always been like this-- the loss is small enough that's > managed to evade monitoring. I suspect everyone on the EX4200 is affected. > > ~Matthew > > > ------------------------------ > > To unsubscribe from the MICE-DISCUSS list, click the following link: > http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1 >