ndt-users list created

[Richard Carlson <>]

Hi Claudio;

OK, looking at the web100-pcap.c source code I see that at debug level 1, 
or above, a ""Opening network interface '%s' for packet-pair timing", 
device" message should be printed on the console.  The 'device' should be 
the name of the network interface (eth0, lo, ...).  The code is suppose to 
automatically detect the 1st network interface, and also automatically 
detect the loopback interface, but you can force it to a specific interface 
if that fails.

So

1) look for this message and see what interface is being selected.
2) run the netstat command to see what interface should be used
3) add the "-i device" option to the web100srv command line to select a 
different interface (web100srv -a -ieth1) would monitor the eth1 network 
interface.

Let me know it that helps
Rich
At 05:32 AM 3/12/2007, 

 wrote:
> Hi Rich,
>
> This is the output of ps:
> root     20883  0.0  0.3  2000  768 pts/2    S    10:13   0:00 
> /usr/local/sbin/web100srv -a -ddddddd
> root     20891  0.0  0.2  1484  528 pts/2    S    10:13   0:00 
> /usr/local/sbin/fakewww -l /var/log/fakewww.log
>
> As you see, even web100srv an fakewww are running as root and the debug 
> level is setting to max level detail. The log file of web100srv is 
> successfully created in default directory (/usr/local/ndt). This is the log:
>
> Web100srv (ver 3.3.19) process (20883) started Mar 12 10:13:37
> Mar 12 10:14:04 xxxxxxxxxxxx  port 38010
> Signal 17 received by process 20896
> Signal 10 received by process 20900
> :::0 --> :::0
>         No packets collected
> link=System Fault; packets=0
> Running Average = 0.00 Mbps  Average speed = nan Mbps
>         T1=-1 (-inf%); Ethernet=-1 (-inf%); T3=-1 (-inf%); 
> FastEthernet=-1 (-inf%);
> OC-12=-1 (-inf%);       Gigabit Ethernet=-1 (-inf%); OC-48=-1 (-inf%); 10 
> Gigabit Enet=-1 (-inf%);
>         Retransmissions=-1 (-inf%); Unknown=-1 (-inf%);
> :::0 --> :::0
>         No packets collected
> link=System Fault; packets=0
> Running Average = 0.00 Mbps  Average speed = nan Mbps
>         T1=-1 (-inf%); Ethernet=-1 (-inf%); T3=-1 (-inf%); 
> FastEthernet=-1 (-inf%);
> OC-12=-1 (-inf%);       Gigabit Ethernet=-1 (-inf%); OC-48=-1 (-inf%); 10 
> Gigabit Enet=-1 (-inf%);
>         Retransmissions=-1 (-inf%); Unknown=-1 (-inf%);
> Signal 17 received by process 20896
> Signal 17 received by process 20896
> Signal 12 received by process 20901
> :::0 --> :::0
>         No packets collected
> link=System Fault; packets=0
> Running Average = 0.00 Mbps  Average speed = nan Mbps
>         T1=-1 (-inf%); Ethernet=-1 (-inf%); T3=-1 (-inf%); 
> FastEthernet=-1 (-inf%);
> OC-12=-1 (-inf%);       Gigabit Ethernet=-1 (-inf%); OC-48=-1 (-inf%); 10 
> Gigabit Enet=-1 (-inf%);
>         Retransmissions=-1 (-inf%); Unknown=-1 (-inf%);
> :::0 --> :::0
>         No packets collected
> link=System Fault; packets=0
> Running Average = 0.00 Mbps  Average speed = nan Mbps
>         T1=-1 (-inf%); Ethernet=-1 (-inf%); T3=-1 (-inf%); 
> FastEthernet=-1 (-inf%);
> OC-12=-1 (-inf%);       Gigabit Ethernet=-1 (-inf%); OC-48=-1 (-inf%); 10 
> Gigabit Enet=-1 (-inf%);
>         Retransmissions=-1 (-inf%); Unknown=-1 (-inf%);
> Signal 17 received by process 20896
> spds[0] = '  -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0.00 0 0 0 0 0' max=0 
> [-0.00%]
> spds[1] = '  -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0.00 0 0 0 0 0' max=0 
> [-0.00%]
> spds[2] = '  -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0.00 0 0 0 0 0' max=0 
> [-0.00%]
> spds[3] = '  -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0.00 0 0 0 0 0' max=0 
> [-0.00%]
> Mar 12 
> 10:14:04,xxxxxxxxxx,76810,842727,435143,0,5928,64306,0,0,96452,1,16384,0,64305,131072,221184,49152,0,0,10028529,1053474920,0,0,1,0,201,131072,100,0,0,0,0,-1,-1,-1,-1,0,96453,0,2,22,0,0,40,45,0,0,0,47,0,0
> Signal 17 received by process 20896
> Signal 17 received by process 20883
>
> About checking middleboxes i think it's probably an internal problem on my 
> network, but for link type i don't really know what to do,
>
> Thanks in advance,
> Regards
>
> Claudio

------------------------------------



Richard A. Carlson                              e-mail: 

Network Engineer                                phone:  (734) 352-7043
Internet2                                       fax:    (734) 913-4255
1000 Oakbrook Dr; Suite 300
Ann Arbor,  MI  48104