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ropeguru
Premium
join:2001-01-25
Mechanicsville, VA

Gotta love internet routing....

I am less than 10 minutes drive time from Virginia Commonwealth University. However, my internet connection to them has to go from Richmond, south to Georgia, north to Washington D.C., then back to Richmond.

What is strange is that it appears Comcast does not have peering with Level3 in D.C. or anywhere closer than Atlanta coming out of Richmond?

tracert mirror.vcu.edu
 
o ajax.vcu.edu [128.172.160.105]
of 30 hops:
 
 <1 ms    <1 ms  192.168.1.253
  1 ms     1 ms  23-25-112-190-static.hfc.comcastbusiness.net [23.25.112.190]
 20 ms    23 ms  96.178.10.1
  9 ms    10 ms  te-9-3-ur01.shadygrove.va.richmond.comcast.net [68.86.124.245]
  9 ms     9 ms  te-9-1-ur01.ashland.va.richmond.comcast.net [68.86.172.6]
  9 ms    10 ms  xe-6-1-2-0-ar02.staplesmllrd.va.richmond.comcast.net [68.86.172.85]
 19 ms    21 ms  pos-0-7-0-0-cr01.charlotte.nc.ibone.comcast.net [68.86.91.153]
 22 ms    74 ms  pos-3-13-0-0-cr01.56marietta.ga.ibone.comcast.net [68.86.86.225]
 24 ms    24 ms  4.28.24.85
 28 ms    27 ms  vlan52.ebr2.atlanta2.level3.net [4.69.150.126]
 28 ms    27 ms  ae-73-73.ebr3.atlanta2.level3.net [4.69.148.253]
 27 ms    26 ms  ae-2-2.ebr1.washington1.level3.net [4.69.132.86]
 27 ms    37 ms  ae-81-81.csw3.washington1.level3.net [4.69.134.138]
 27 ms    28 ms  ae-1-80.edge1.washington1.level3.net [4.69.149.141]
 30 ms    32 ms  virginia-co.edge1.washington1.level3.net [4.31.79.106]
 37 ms    36 ms  ajax.vcu.edu [128.172.160.105]
  *        *     Request timed out.
 40 ms    42 ms  ajax.vcu.edu [128.172.160.105]
  *        *     Request timed out.
 
 

ExoticFish

join:2008-08-31
Stuarts Draft, VA
Mine is a bit better.

  1    <1 ms    <1 ms    <1 ms  www.asusnetwork.net [192.168.1.1]
  2     8 ms    10 ms     7 ms  96.120.80.101
  3     8 ms     8 ms     9 ms  te-8-1-ur01.waynesboro.va.richmond.comcast.net [
68.86.126.165]
  4    22 ms     8 ms     9 ms  te-4-2-ar01.charlvilleco.va.richmond.comcast.net
 [69.139.165.153]
  5    11 ms     9 ms     9 ms  xe-0-0-3-0-ar02.charlvilleco.va.richmond.comcast
.net [69.139.165.250]
  6    15 ms    14 ms    14 ms  68.86.95.69
  7    12 ms    12 ms    11 ms  xe-10-2-0.edge2.Washington12.Level3.net [4.26.6.
9]
  8    13 ms    15 ms    13 ms  vlan52.ebr2.Washington12.Level3.net [4.69.146.22
2]
  9    12 ms    12 ms    13 ms  ae-5-5.ebr2.Washington1.Level3.net [4.69.143.221
]
 10    11 ms    13 ms    13 ms  ae-92-92.csw4.Washington1.Level3.net [4.69.134.1
58]
 11    14 ms    69 ms    11 ms  ae-4-90.edge1.Washington1.Level3.net [4.69.149.2
05]
 12    16 ms    17 ms    15 ms  VIRGINIA-CO.edge1.Washington1.Level3.net [4.31.7
9.106]
 13    30 ms    29 ms    33 ms  ajax.vcu.edu [128.172.160.105]
 14     *        *        *     Request timed out.
 15    30 ms    33 ms    31 ms  ajax.vcu.edu [128.172.160.105]
 16     *        *        *     Request timed out.
 17     *        *        *     Request timed out.
 18     *        *        *     Request timed out.
 19    30 ms    29 ms    32 ms  ajax.vcu.edu [128.172.160.105]
 20    33 ms    31 ms    31 ms  ajax.vcu.edu [128.172.160.105]
 
Trace complete.
 

--
»www.VAJeeps.com | »www.ChinchillasForum.com


ropeguru
Premium
join:2001-01-25
Mechanicsville, VA
Coming form Stuarts Draft, yours makes a lot more sense.


whfsdude
Premium
join:2003-04-05
Washington, DC
Reviews:
·Comcast
reply to ropeguru
Comcast has peering with L3 in Ashburn. Wish they had peering at CoreSite 1275 K but that's a whole different matter.

traceroute to 128.172.160.105 (128.172.160.105), 64 hops max, 52 byte packets
 1  core.deannet.net (192.168.124.1)  0.598 ms  0.222 ms  0.120 ms
 2  ge-2-2-0-32767-sur01.michiganave.dc.bad.comcast.net (50.202.87.153)  0.497 ms  0.361 ms  0.347 ms
 3  ae-19-0-ar04.capitolhghts.md.bad.comcast.net (68.85.114.129)  0.752 ms  0.789 ms  0.733 ms
 4  pos-4-3-0-0-cr01.ashburn.va.ibone.comcast.net (68.86.90.173)  4.656 ms
    pos-5-3-0-0-cr01.ashburn.va.ibone.comcast.net (68.86.93.137)  3.344 ms
    pos-4-3-0-0-cr01.ashburn.va.ibone.comcast.net (68.86.90.173)  5.877 ms
 5  xe-10-2-0.edge2.washington12.level3.net (4.26.6.9)  2.403 ms  2.377 ms  2.449 ms
 6  vlan51.ebr1.washington12.level3.net (4.69.146.190)  3.104 ms
    vlan52.ebr2.washington12.level3.net (4.69.146.222)  3.266 ms
    vlan51.ebr1.washington12.level3.net (4.69.146.190)  3.013 ms
 7  ae-8-8.ebr1.washington1.level3.net (4.69.143.217)  3.330 ms  3.386 ms
    ae-5-5.ebr2.washington1.level3.net (4.69.143.221)  7.375 ms
 8  ae-72-72.csw2.washington1.level3.net (4.69.134.150)  3.197 ms
    ae-91-91.csw4.washington1.level3.net (4.69.134.142)  9.609 ms
    ae-62-62.csw1.washington1.level3.net (4.69.134.146)  2.940 ms
 9  ae-4-90.edge1.washington1.level3.net (4.69.149.205)  3.259 ms  3.107 ms
    ae-1-60.edge1.washington1.level3.net (4.69.149.13)  2.953 ms
10  virginia-co.edge1.washington1.level3.net (4.31.79.106)  7.192 ms  6.256 ms  6.188 ms
11  ajax.vcu.edu (128.172.160.105)  7.222 ms  9.167 ms  7.557 ms
 


YukonHawk

join:2001-01-07
Patterson, NY
Reviews:
·Comcast
reply to ropeguru
Mine is okay as Hartford is 60 to 70 miles from me.

TraceRoute from Network-Tools.com to 67.189.208.196 [c-67-189-208-196.hsd1.ny.comcast.net]
Hop (ms) (ms) (ms) IP Address Host name
1 0 0 0 206.123.64.42 -
2 0 0 0 64.124.196.225 xe-4-2-0.er2.dfw2.us.above.net
3 0 0 0 64.125.27.77 xe-1-0-0.er1.dfw2.us.above.net
4 4 3 3 64.125.13.186 above-comcast.dfw2.us.above.net
5 1 3 3 68.86.85.33 pos-2-6-0-0-cr01.dallas.tx.ibone.comcast.net
6 15 16 15 68.86.89.109 -
7 35 35 35 68.86.85.245 he-5-13-0-0-cr01.350ecermak.il.ibone.comcast.net
8 67 59 59 68.86.95.26 he-3-5-0-0-ar01.woburn.ma.boston.comcast.net
9 62 63 63 68.87.144.165 pos-0-15-0-0-ar01.berlin.ct.hartford.comcast.net
10 62 62 62 68.85.162.186 po-53-ur01.danbury.ct.hartford.comcast.net
11 62 62 62 68.86.230.254 po-64-ur01.carmel.ny.hartford.comcast.net
12 61 61 61 68.87.181.2 te-1-0-0-ten01.carmel.ny.hartford.comcast.net
13 70 69 69 67.189.208.196 c-67-189-208-196.hsd1.ny.comcast.net

Trace complete


ropeguru
Premium
join:2001-01-25
Mechanicsville, VA
reply to whfsdude
You are up in D.C. and your pings are 30+ms better from a further distance. Seems to me that Comcast needs to do some routing table maintenance.

ExoticFish

join:2008-08-31
Stuarts Draft, VA
Yeah his pings are a lot faster then both of ours.


whfsdude
Premium
join:2003-04-05
Washington, DC
Reviews:
·Comcast
reply to ropeguru
said by ropeguru:

You are up in D.C. and your pings are 30+ms better from a further distance. Seems to me that Comcast needs to do some routing table maintenance.

It's proximity to IXs that often matters more, not proximity to servers.

VA should try becoming an I2 connector hub (eg. Northern Crossroads, IndianaGigapop), etc. That would help a lot with peering outside of NoVA.

»www.internet2.edu/pubs/networkma···ants.pdf


ropeguru
Premium
join:2001-01-25
Mechanicsville, VA
reply to ExoticFish
I would have expected Richmond to route to Ashburn to get to Level 3 and not to Georgia. Comcast speed tests to DC max out my connection so I really cannot see it being a rerroute do to congestion between Richmond and DC.

I guess it is the extra benefit of having a business class connection and static IP so that we have higher latency and avoid burning up our cable connection with the blazing fast speed. /sarcasm


ropeguru
Premium
join:2001-01-25
Mechanicsville, VA
reply to whfsdude
said by whfsdude:

said by ropeguru:

You are up in D.C. and your pings are 30+ms better from a further distance. Seems to me that Comcast needs to do some routing table maintenance.

It's proximity to IXs that often matters more, not proximity to servers.

VA should try becoming an I2 connector hub (eg. Northern Crossroads, IndianaGigapop), etc. That would help a lot with peering outside of NoVA.

»www.internet2.edu/pubs/networkma···ants.pdf

I understand that. Richmond is MUCH closer proximity to the DC IX's though than it is to Atlanta, GA. So I still do not get it.


ropeguru
Premium
join:2001-01-25
Mechanicsville, VA
reply to ropeguru
I am seeing a pattern. I did traceroutes to several other web sites and in order for me here in Richmond to hit a labled OCmcast ibone connection, I have to go down to Charlotte, NC.

I cannot believe that being this close to DC that they have no connection from Richmond to the Ashburn ibone network.


depster

join:2001-06-07
united state
reply to ropeguru
said by ropeguru:

I would have expected Richmond to route to Ashburn to get to Level 3

There is at least an inbound route from Ashburn to Richmond.

Tracing the route to 23-25-112-190-static.hfc.comcastbusiness.net (23.25.112.190)
 
  1 te-1-4-0-6-102-cr01.newyork.ny.ibone.comcast.net (66.208.229.6) 4 msec 4 msec 4 msec
  2 he-4-11-0-0-cr01.ashburn.va.ibone.comcast.net (68.86.85.13) 4 msec 4 msec 12 msec
  3 so-1-0-0-0-ar02.charlvilleco.va.richmond.comcast.net (68.86.91.54) 8 msec 8 msec 8 msec
  4 ae-0-0-ar02.staplesmllrd.va.richmond.comcast.net (69.139.165.205) [AS 21508] 16 msec 16 msec 20 msec
  5 te-1-1-ur01.ashland.va.richmond.comcast.net (68.86.172.86) [AS 21508] 16 msec 20 msec 16 msec
  6 te-1-1-ur01.shadygrove.va.richmond.comcast.net (68.86.172.5) [AS 21508] 16 msec 16 msec 20 msec
  7 te-17-10-cdn01.shadygrove.va.richmond.comcast.net (68.86.124.242) [AS 21508] 28 msec 32 msec 28 msec
 


depster

join:2001-06-07
united state
reply to ropeguru
Try a trace to the Ashburn Core Router: 68.86.80.0


ropeguru
Premium
join:2001-01-25
Mechanicsville, VA
said by depster:

Try a trace to the Ashburn Core Router: 68.86.80.0

1 1 ms 1 ms 1 ms 192.168.1.253
2 1 ms 1 ms 1 ms 23-25-112-190-static.hfc.comcastbusiness.net [23.25.112.190]
3 35 ms 21 ms 28 ms 96.178.10.1
4 11 ms 9 ms 10 ms te-9-3-ur01.shadygrove.va.richmond.comcast.net [68.86.124.245]
5 9 ms 9 ms 10 ms te-9-1-ur01.ashland.va.richmond.comcast.net [68.86.172.6]
6 11 ms 17 ms 10 ms xe-6-1-2-0-ar02.staplesmllrd.va.richmond.comcast.net [68.86.172.85]
7 129 ms 12 ms 13 ms ae-0-0-ar02.charlvilleco.va.richmond.comcast.net [69.139.165.206]
8 17 ms 17 ms 19 ms cr01.ashburn.va.ibone.comcast.net [68.86.80.0]

Interesting that it detours west through Charlottesville instead connection straight north up the I-95 corridor.

jhaygood86

join:2005-03-01
Marietta, GA
reply to ropeguru
What's funny is the routing from where I work to my house (on Comcast). It goes from downtown Atlanta (a few blocks from 56 Marietta), up to Roswell, GA (via 56 Marietta), then to Ashburn, VA, then back to 56 Marietta, then up to Marietta, GA.

C:\Users\JHaygood.DGS>tracert home.justinhaygood.com
 
Tracing route to home.justinhaygood.com [24.126.188.230]
over a maximum of 30 hops:
 
  1     5 ms    <1 ms    <1 ms  172.17.44.1
  2    <1 ms    <1 ms    <1 ms  172.17.40.21
  3    <1 ms    <1 ms    <1 ms  172.17.40.4
  4     2 ms     2 ms     2 ms  172.18.18.66
  5     2 ms     2 ms     4 ms  10.18.35.1
  6     2 ms     3 ms     2 ms  gi0-1dot110.rt-rsw-twt.dgit.net [208.20.166.2]
  7     4 ms     4 ms     4 ms  66-194-35-17.static.twtelecom.net [66.194.35.17]
  8    85 ms    33 ms    21 ms  ash1-pr1-xe-0-3-0-0.us.twtelecom.net [66.192.240.218]
  9    23 ms    22 ms    23 ms  66.192.252.210
 10    23 ms    23 ms    23 ms  pos-3-14-0-0-cr01.ashburn.va.ibone.comcast.net [68.86.86.29]
 11    28 ms    23 ms    23 ms  he-4-4-0-0-cr01.56marietta.ga.ibone.comcast.net [68.86.89.154]
 12    55 ms    99 ms    21 ms  so-20-0-0-0-ar01.b0atlanta.ga.atlanta.comcast.net [68.86.91.254]
 13    22 ms    22 ms    22 ms  xe-10-3-0-0-sur01.b2marietta.ga.atlanta.comcast.net [68.86.106.189]
 14    42 ms    41 ms    38 ms  te-17-10-cdn02.b2marietta.ga.atlanta.comcast.net [68.86.109.114]
 15     *
 


ropeguru
Premium
join:2001-01-25
Mechanicsville, VA
reply to depster
Even routing to the Comcast speedtest site takes me to Charlotte first.

1 1 ms 1 ms 1 ms 192.168.1.253
2 1 ms 1 ms 1 ms 23-25-112-190-static.hfc.comcastbusiness.net [23.25.112.190]
3 36 ms 29 ms 25 ms 96.178.10.1
4 11 ms 9 ms 9 ms te-9-3-ur01.shadygrove.va.richmond.comcast.net [68.86.124.245]
5 11 ms 9 ms 9 ms te-9-1-ur01.ashland.va.richmond.comcast.net [68.86.172.6]
6 9 ms 9 ms 11 ms xe-6-1-2-0-ar02.staplesmllrd.va.richmond.comcast.net [68.86.172.85]
7 22 ms 21 ms 21 ms pos-0-7-0-0-cr01.charlotte.nc.ibone.comcast.net [68.86.91.153]
8 21 ms 23 ms 24 ms pos-2-7-0-0-cr01.ashburn.va.ibone.comcast.net [68.86.89.97]
9 22 ms 23 ms 23 ms so-9-1-0-0-ar04.capitolhghts.md.bad.comcast.net [68.86.93.138]
10 25 ms 25 ms 25 ms te-2-1-ur03-d.manassascc.va.bad.comcast.net [68.85.130.29]
11 30 ms 29 ms 29 ms speed-upload-01.manassascc.va.bad.comcast.net [68.87.73.52]


EG
The wings of love
Premium
join:2006-11-18
Union, NJ
kudos:10
FWIW, there are no guarantees that any rDNS / geolocation data associated with routing hops is accurate / current..


ropeguru
Premium
join:2001-01-25
Mechanicsville, VA
said by EG:

FWIW, there are no guarantees that any rDNS / geolocation data associated with routing hops is accurate / current..

Pretty damming though when all my trace routes to web sites go through Charlotte but the one to the COmcast Ashburn core router goes through Charlottesville to Ashburn.

And the latency difference shows a correlation also.


Darknessfall
Premium
join:2012-08-17
kudos:6
Reviews:
·Frontier Communi..
·Comcast
·AT&T U-Verse

1 edit
Tracering to that VA server from CT .
Tracing route to ajax.vcu.edu [128.172.160.105]
over a maximum of 30 hops:

1 * * * Request timed out.
2 7 ms 7 ms 7 ms ----------
3 14 ms 11 ms 11 ms be-52-ar01.chartford.ct.hartford.comcast.net [68.85.162.194]
4 15 ms 15 ms 15 ms pos-1-4-0-0-ar01.needham.ma.boston.comcast.net [68.85.162.69]
5 29 ms 23 ms 23 ms he-2-6-0-0-cr01.newyork.ny.ibone.comcast.net [68.86.93.33]
6 19 ms 26 ms 29 ms xe-11-2-0.edge1.NewYork2.Level3.net [4.71.186.9]
7 26 ms 24 ms 32 ms vlan51.ebr1.NewYork2.Level3.net [4.69.138.222]
8 25 ms * * ae-3-3.ebr2.Washington1.Level3.net [4.69.132.89]
9 25 ms 25 ms 25 ms ae-72-72.csw2.Washington1.Level3.net [4.69.134.150]
10 25 ms 25 ms 25 ms ae-2-70.edge1.Washington1.Level3.net [4.69.149.77]
11 29 ms 39 ms 29 ms VIRGINIA-CO.edge1.Washington1.Level3.net [4.31.79.106]
12 31 ms 31 ms * ajax.vcu.edu [128.172.160.105]
13 * * * Request timed out.
14 31 ms * 32 ms ajax.vcu.edu [128.172.160.105]
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 32 ms 30 ms 31 ms ajax.vcu.edu [128.172.160.105]
19 * 45 ms * ajax.vcu.edu [128.172.160.105]
20 45 ms 41 ms 31 ms ajax.vcu.edu [128.172.160.105]

Trace complete.


EG
The wings of love
Premium
join:2006-11-18
Union, NJ
kudos:10
Looks like you got some looping going on there.