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An update - just before noon CST I updated to the newest ldm (6.12.14) and also switched my CONDUIT request sites so I'm requesting from idd.unidata.ucar.edu and ncepldm4.woc.noaa.gov (both in Boulder, I believe) and commented out the request to conduit.ncep.noaa.gov (in Washington DC?)
Latencies are almost immediately better (see attached gif) and the 18 UTC NAM seems to be coming in fine. Guess I'm good for now, though me feeding CONDUIT from idd.unidata.ucar.edu doesn't seem ideal.. Would be better to figure out why I'm getting such latencies from the two noaa sites.
Some mtr data:
idd.aos.wisc.edu to idd.unidata.ucar.edu:
My traceroute [v0.75]
idd.aos.wisc.edu (0.0.0.0) Fri Feb 19 13:48:54 2016
Keys: Help Display mode Restart statistics Order of fields quit
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. r-cssc-b280c-1-core-vlan-510-primary.net.wisc.edu 0.0% 6291 6.9 0.9 0.5 49.6 3.7
2. internet2-ord-600w-100G.net.wisc.edu 0.0% 6291 18.2 18.1 18.0 70.9 3.8
3. ae0.3454.core-l3.frgp.net 0.0% 6291 40.2 40.2 39.9 91.3 4.0
4. tcom-gs-1-vl873.ucar.edu 0.0% 6291 41.4 41.1 40.8 160.8 6.6
5. flra.ucar.edu 0.0% 6291 41.5 45.7 40.9 406.8 22.9
6. idd.unidata.ucar.edu 0.2% 6290 41.8 41.1 40.9 106.1 4.8
idd.aos.wisc.edu to ncepldm4.woc.noaa.gov
My traceroute [v0.75]
idd.aos.wisc.edu (0.0.0.0) Fri Feb 19 13:49:42 2016
Keys: Help Display mode Restart statistics Order of fields quit
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. r-cssc-b280c-1-core-vlan-510-primary.net.wisc.edu 0.0% 7014 1.3 0.9 0.6 50.0 3.8
2. internet2-ord-600w-100G.net.wisc.edu 0.0% 7014 18.7 18.2 18.1 67.9 3.7
3. ae0.3454.core-l3.frgp.net 0.0% 7014 54.7 40.3 40.0 90.9 4.0
4. noaa-i2.frgp.net 0.0% 7014 50.0 41.4 40.8 106.0 5.7
5. 2001-mlx8-eth-1-2.boulder.noaa.gov 0.0% 7014 58.3 42.2 40.8 107.8 5.6
6. mdf-rtr-6.boulder.noaa.gov 0.0% 7014 56.9 42.3 40.9 107.0 5.7
7. ???
idd.aos.wisc.edu to conduit.ncep.noaa.gov
My traceroute [v0.75]
idd.aos.wisc.edu (0.0.0.0) Fri Feb 19 13:49:18 2016
Keys: Help Display mode Restart statistics Order of fields quit
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. r-cssc-b280c-1-core-vlan-510-primary.net.wisc.edu 0.0% 7031 1.6 0.8 0.6 50.6 3.6
2. internet2-ord-600w-100G.net.wisc.edu 0.0% 7031 18.2 18.1 18.0 68.7 3.6
3. et-10-0-0.107.rtr.clev.net.internet2.edu 0.0% 7031 27.9 27.8 27.6 76.4 3.8
4. et-11-3-0-1276.clpk-core.maxgigapop.net 0.0% 7031 37.3 37.3 37.1 86.1 4.3
5. noaa-i2.demarc.maxgigapop.net 0.0% 7031 39.0 40.6 37.3 373.8 20.6
6. 140.90.111.36 0.0% 7031 37.6 53.5 37.4 468.2 34.2
7. 140.90.76.69 0.0% 7031 37.8 38.6 37.5 130.1 6.6
8. ???
Pete
From: address@hidden <address@hidden> on behalf of Pete Pokrandt <address@hidden>
Sent: Friday, February 19, 2016 11:20 AM To: Carissa Klemmer - NOAA Federal; Arthur A Person; _NCEP.List.pmb-dataflow Cc: Bentley, Alicia M; Daes Support; address@hidden; Michael Schmidt Subject: [conduit] Large CONDUIT latencies to UW-Madison idd.aos.wisc.edu starting the last day or two. All,
Not sure if this is on my end or somewhere upstream, but the last several runs my CONDUIT latencies have been getting huge to the point where we are losing data.
I did stop my ldm the other day to add in an alternate feed for Gilbert at allisonhous.com, not sure if that pushed me over a bandwidth limit, or by reconnecting we got hooked up to a different remote ldm, or taking a different path, that shot the latencies up.
Seems to be really only CONDUIT, none of our other feeds show this kind of latency.
Still looking into things locally, but wanted make people aware. I just rebooted idd.aos.wisc.edu, will see if that helps at all.
Here's an ldmping and traceroute from idd.aos.wisc.edu to conduit.ncep.noaa.gov.
[ldm@idd ~]$ ldmping conduit.ncep.noaa.gov
Feb 19 17:16:08 INFO: State Elapsed Port Remote_Host rpc_stat
Feb 19 17:16:08 INFO: Resolving conduit.ncep.noaa.gov to 140.90.101.42 took 0.00486 seconds
Feb 19 17:16:08 INFO: RESPONDING 0.115499 388 conduit.ncep.noaa.gov
traceroute to conduit.ncep.noaa.gov (140.90.101.42), 30 hops max, 60 byte packets
1 r-cssc-b280c-1-core-vlan-510-primary.net.wisc.edu (144.92.130.3) 0.760 ms 0.954 ms 0.991 ms
2 internet2-ord-600w-100G.net.wisc.edu (144.92.254.229) 18.119 ms 18.123 ms 18.107 ms
3 et-10-0-0.107.rtr.clev.net.internet2.edu (198.71.45.9) 27.836 ms 27.852 ms 27.838 ms
4 et-11-3-0-1276.clpk-core.maxgigapop.net (206.196.177.4) 37.363 ms 37.363 ms 37.345 ms
5 noaa-i2.demarc.maxgigapop.net (206.196.177.118) 38.051 ms 38.254 ms 38.401 ms
6 140.90.111.36 (140.90.111.36) 118.042 ms 118.412 ms 118.529 ms
7 140.90.76.69 (140.90.76.69) 41.764 ms 40.343 ms 40.500 ms
8 * * *
9 * * *
10 * * *
[ldm@idd ~]$ ldmping ncepldm4.woc.noaa.gov
Feb 19 17:18:40 INFO: State Elapsed Port Remote_Host rpc_stat
Feb 19 17:18:40 INFO: Resolving ncepldm4.woc.noaa.gov to 140.172.17.205 took 0.001599 seconds
Feb 19 17:18:40 INFO: RESPONDING 0.088901 388 ncepldm4.woc.noaa.gov
^C
[ldm@idd ~]$ traceroute ncepldm4.woc.noaa.gov
traceroute to ncepldm4.woc.noaa.gov (140.172.17.205), 30 hops max, 60 byte packets
1 r-cssc-b280c-1-core-vlan-510-primary.net.wisc.edu (144.92.130.3) 0.730 ms 0.831 ms 0.876 ms
2 internet2-ord-600w-100G.net.wisc.edu (144.92.254.229) 18.092 ms 18.092 ms 18.080 ms
3 ae0.3454.core-l3.frgp.net (192.43.217.223) 40.196 ms 40.226 ms 40.256 ms
4 noaa-i2.frgp.net (128.117.243.11) 40.970 ms 41.012 ms 40.996 ms
5 2001-mlx8-eth-1-2.boulder.noaa.gov (140.172.2.18) 42.780 ms 42.778 ms 42.764 ms
6 mdf-rtr-6.boulder.noaa.gov (140.172.6.251) 40.869 ms 40.922 ms 40.946 ms
7 * * *
8 * * *
Pete
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