Date: Tue, 08 Jul 2014 09:30:06 -0400 From: Bob Healey <healer@rpi.edu> To: freebsd-stable@freebsd.org Subject: Re: Interactions with mxge, pf, nfsd, and the kernel Message-ID: <53BBF25E.40808@rpi.edu> In-Reply-To: <20140708132531.GI2586@home.opsec.eu> References: <53B42139.302@rpi.edu> <53BBEECD.6000709@rpi.edu> <20140708132531.GI2586@home.opsec.eu>
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For an unscientific test, tcpdump -i bce1 for ~5 seconds gave these stats:
321 packets captured
53776 packets received by filter
52703 packets dropped by kernel
tcpdump -i mxge0 gave these stats:
17 packets captured
19 packets received by filter
0 packets dropped by kernel
For the switch end of mxge0:
HP-E2910al-48G# show uptime
0030:15:06:05.60
HP-E2910al-48G# show interfaces a1
Status and Counters - Port Counters for port A1
Name : Redwing 10G
MAC Address : 68b599-954a8f
Link Status : Up
Totals (Since boot or last clear) :
Bytes Rx : 2,312,764,644 Bytes Tx : 3,924,158,811
Unicast Rx : 202,711,900 Unicast Tx : 250,819,176
Bcast/Mcast Rx : 42,603 Bcast/Mcast Tx : 439,196
Errors (Since boot or last clear) :
FCS Rx : 0 Drops Tx : 0
Alignment Rx : 0 Collisions Tx : 0
Runts Rx : 0 Late Colln Tx : 0
Giants Rx : 0 Excessive Colln : 0
Total Rx Errors : 0 Deferred Tx : 0
Others (Since boot or last clear) :
Discard Rx : 0 Out Queue Len : 0
Unknown Protos : 0
Rates (5 minute weighted average) :
Total Rx (Kbps) : 49,816 Total Tx (Kbps) : 61,824
Unicast Rx (Pkts/sec) : 305 Unicast Tx (Pkts/sec) : 404
B/Mcast Rx (Pkts/sec) : 0 B/Mcast Tx (Pkts/sec) : 0
Utilization Rx : 00.49 % Utilization Tx : 00.61 %
HP-E2910al-48G#
Switch has been up 30 days, no counters have been cleared
Bob Healey
Systems Administrator
Biocomputation and Bioinformatics Constellation
and Molecularium
healer@rpi.edu
(518) 276-4407
On 7/8/2014 9:25 AM, Kurt Jaeger wrote:
> Hi!
>
>> I've been running one of these machines without pf, and it has ceased
>> responding on all interfaces (mxge and bce).
>> The console still works fine
> Is a tcpdump on one of the interfaces seeing any traffic ? arp ? multicast ?
>
> Is a tcpdump seeing any outgoing packets if you send them ?
>
> If you plug in a cross cable to some other host, does it see
> bytes on the interface if you try to send traffic ?
>
> Does
>
> ifconfig <if> down
> ifconfig <if> up
>
> help ? Is the switch still seeing a link ? Does it change if you
> ifconfig down ?
>
> Does it change if you unplug and re-plug the cable ?
>
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