Diagnosing packet loss

[Kees Jan Koster]

Dear Mike,

>> I am stuck with a machine that shows serious packet loss (about 1% of all traffic is dropped). I tried the obvious (new network cable, different switch port, different ethernet interface on the machine), but the problems remain.
> 
> What is the output of
> sysctl -a dev.bge

See below.

> Can you show the stats and config of the switch port its plugged into as
> well ?

It is not configurable. No serial port, so I guess this is really a glorified hub.


[kjkoster at saffron ~]$ uptime
 8:27AM  up 1 day,  1:18, 1 user, load averages: 0.50, 0.45, 0.43
[kjkoster at saffron ~]$ sysctl -a dev.bge.0
dev.bge.0.%desc: Broadcom Gigabit Ethernet Controller, ASIC rev. 0x002003
dev.bge.0.%driver: bge
dev.bge.0.%location: slot=9 function=0 handle=\_SB_.PCI0.GOLA.GLAN
dev.bge.0.%pnpinfo: vendor=0x14e4 device=0x1648 subvendor=0x14e4 subdevice=0x1644 class=0x020000
dev.bge.0.%parent: pci2
dev.bge.0.forced_collapse: 0
dev.bge.0.forced_udpcsum: 0
dev.bge.0.stats.FramesDroppedDueToFilters: 0
dev.bge.0.stats.DmaWriteQueueFull: 0
dev.bge.0.stats.DmaWriteHighPriQueueFull: 0
dev.bge.0.stats.NoMoreRxBDs: 0
dev.bge.0.stats.InputDiscards: 0
dev.bge.0.stats.InputErrors: 0
dev.bge.0.stats.RecvThresholdHit: 3680296
dev.bge.0.stats.DmaReadQueueFull: 3810
dev.bge.0.stats.DmaReadHighPriQueueFull: 0
dev.bge.0.stats.SendDataCompQueueFull: 0
dev.bge.0.stats.RingSetSendProdIndex: 707120
dev.bge.0.stats.RingStatusUpdate: 4275217
dev.bge.0.stats.Interrupts: 4275218
dev.bge.0.stats.AvoidedInterrupts: 0
dev.bge.0.stats.SendThresholdHit: 0
dev.bge.0.stats.rx.ifHCInOctets: 772506284
dev.bge.0.stats.rx.Fragments: 0
dev.bge.0.stats.rx.UnicastPkts: 776204
dev.bge.0.stats.rx.MulticastPkts: 728
dev.bge.0.stats.rx.FCSErrors: 0
dev.bge.0.stats.rx.AlignmentErrors: 0
dev.bge.0.stats.rx.xonPauseFramesReceived: 1
dev.bge.0.stats.rx.xoffPauseFramesReceived: 1
dev.bge.0.stats.rx.ControlFramesReceived: 0
dev.bge.0.stats.rx.xoffStateEntered: 1
dev.bge.0.stats.rx.FramesTooLong: 0
dev.bge.0.stats.rx.Jabbers: 0
dev.bge.0.stats.rx.UndersizePkts: 0
dev.bge.0.stats.rx.inRangeLengthError: 0
dev.bge.0.stats.rx.outRangeLengthError: 0
dev.bge.0.stats.tx.ifHCOutOctets: 212962495
dev.bge.0.stats.tx.Collisions: 0
dev.bge.0.stats.tx.XonSent: 0
dev.bge.0.stats.tx.XoffSent: 0
dev.bge.0.stats.tx.flowControlDone: 0
dev.bge.0.stats.tx.InternalMacTransmitErrors: 0
dev.bge.0.stats.tx.SingleCollisionFrames: 0
dev.bge.0.stats.tx.MultipleCollisionFrames: 0
dev.bge.0.stats.tx.DeferredTransmissions: 0
dev.bge.0.stats.tx.ExcessiveCollisions: 0
dev.bge.0.stats.tx.LateCollisions: 0
dev.bge.0.stats.tx.UnicastPkts: 701087
dev.bge.0.stats.tx.MulticastPkts: 0
dev.bge.0.stats.tx.BroadcastPkts: 5422
dev.bge.0.stats.tx.CarrierSenseErrors: 0
dev.bge.0.stats.tx.Discards: 0
dev.bge.0.stats.tx.Errors: 0
dev.bge.0.wake: 0

--
Kees Jan

http://java-monitor.com/
kjkoster at kjkoster.org
+31651838192

The secret of success lies in the stability of the goal. -- Benjamin Disraeli