Re: [j-nsp] DSCP-marked traffic mysteriously being dropped by MX960

2012-07-23 Thread Wayne Tucker
On Mon, Jul 23, 2012 at 8:02 AM, John Neiberger wrote: > > Well, we have applied the scheduler map to the interface but we're > still seeing 100% drops in queue 1, which is where CS2 is hitting. It > is literally dropping every packet in queue 1, but I don't understand > enough about what I'm seei

Re: [j-nsp] DSCP-marked traffic mysteriously being dropped by MX960

2012-07-23 Thread John Neiberger
Well, we have applied the scheduler map to the interface but we're still seeing 100% drops in queue 1, which is where CS2 is hitting. It is literally dropping every packet in queue 1, but I don't understand enough about what I'm seeing to understand why. Queue counters: Queued packets Tran

Re: [j-nsp] DSCP-marked traffic mysteriously being dropped by MX960

2012-07-20 Thread John Neiberger
On Fri, Jul 20, 2012 at 3:49 PM, Wayne Tucker wrote: > Does show interfaces extensive on the interface between Router A and > Device A show any drops? IIRC, the default scheduler map does not define > schedulers for anything other than be and nc - so if you're classifying the > packets on input

Re: [j-nsp] DSCP-marked traffic mysteriously being dropped by MX960

2012-07-20 Thread OBrien, Will
Have you captured traffic before and after to validate the marking? Relavent config bits would help. On Jul 20, 2012, at 3:56 PM, John Neiberger wrote: > We've been troubleshooting a strange problem for a few days. JTAC is > on the case, too, but we have not found any resolution. I thought > mayb

Re: [j-nsp] DSCP-marked traffic mysteriously being dropped by MX960

2012-07-20 Thread John Neiberger
Someone else off-list just mentioned something similar. We're checking into that now. Thanks! John On Fri, Jul 20, 2012 at 3:49 PM, Wayne Tucker wrote: > Does show interfaces extensive on the interface between Router A and > Device A show any drops? IIRC, the default scheduler map does not def

Re: [j-nsp] DSCP-marked traffic mysteriously being dropped by MX960

2012-07-20 Thread Wayne Tucker
Does show interfaces extensive on the interface between Router A and Device A show any drops? IIRC, the default scheduler map does not define schedulers for anything other than be and nc - so if you're classifying the packets on input then it could be that they're going to a class that has no res

Re: [j-nsp] DSCP-marked traffic mysteriously being dropped by MX960

2012-07-20 Thread John Neiberger
We have packet captures going at the endpoints, but not in between, unfortunately. It would be nice if we had a sniffer at that location so we could mirror the ports and get some data there. The inbound filter on Router C looks like this: term netmgmt { then { count fec-cs2; l

[j-nsp] DSCP-marked traffic mysteriously being dropped by MX960

2012-07-20 Thread John Neiberger
We've been troubleshooting a strange problem for a few days. JTAC is on the case, too, but we have not found any resolution. I thought maybe picking some minds here would be helpful. Here is a simplified diagram: [Device A] --- [Router A] --- [Router B] --- [Router C] - [Device