Re: Does Teleglobe implements QoS ?

["Victor L. Belov" <scream () zenon net>]

Hi,

Another strange thing is that Teleglobe passes packets coming via
AS8342 the same way as you showed with Teleglobe's IP addresses.
It is a trace from my office.

[lost]:[2:01:17pm][pts/1]%[~]> traceroute 204.71.127.3
traceroute to 204.71.127.3 (204.71.127.3), 30 hops max, 38 byte packets
 1  jam-4-e0-0.zenon.Net (195.2.69.65)  1.887 ms  1.115 ms  1.931 ms
 2  m9-2-atm3-0-9-2-103.zenon.Net (195.2.73.221)  2.016 ms  2.043 ms 
2.017 ms
 3  m9-3-fa1-1-0-90.zenon.Net (195.2.70.3)  10.886 ms  5.206 ms  6.356
ms
 4  m3-bvi-1.msk-m9.RosTelecom.net (195.161.2.133)  3.760 ms  7.434 ms 
3.860 ms
 5  c1-s0-1-0.NewYork.RosTelecom.Net (195.161.161.162)  124.627 ms 
135.079 ms  212.080 ms
 6  if-2-0-0.bb6.NewYork.Teleglobe.net (207.45.205.29)  124.108 ms 
138.293 ms  134.732 ms
 7  if-6-0-0.bb1.NewYork.Teleglobe.net (207.45.221.67)  124.241 ms 
124.444 ms  128.004 ms
 8  Serial0-1-0.GW2.NYC2.ALTER.NET (157.130.4.165)  159.963 ms  128.290
ms 157.130.5.217 (157.130.5.217)  131.942 ms
 9  144.ATM2-0.XR2.EWR1.ALTER.NET (146.188.178.158)  146.279 ms  139.127
ms  156.021 ms
10  192.ATM3-0.TR2.EWR1.ALTER.NET (146.188.176.86)  138.311 ms  128.993
ms  147.531 ms
11  105.ATM6-0.TR2.DCA8.ALTER.NET (146.188.138.173)  273.422 ms  244.176
ms  240.139 ms
12  152.63.32.209 (152.63.32.209)  125.812 ms  126.926 ms  147.801 ms
13  192.ATM6-0.GW5.TCO1.ALTER.NET (146.188.162.165)  137.129 ms  124.777
ms  143.391 ms
14  intrepid-gw2.customer.ALTER.NET (157.130.36.214)  242.036 ms 
258.814 ms  244.446 ms
15  office-shep.intrepid.net (209.190.129.38)  238.867 ms  250.612 ms 
243.025 ms
16  intrepid.net (204.71.127.3)  288.863 ms  243.229 ms  237.784 ms
[lost]:[2:01:25pm][pts/1]%[~]> 

"Dmitry S. Esakov" wrote:
>                 Hello!
>
> Macomnet (ISP, AS8470, Moscow, Russia)  uses world connectivity via
> Teleglobe. We have a router, managed by us, in NY. The interface pointing
> to America uses Teleglobe's address and another one, pointing to Moscow
>  - ours.
>
> Regullary I see a quite strange heavy delays on Teleglobe to
> Alternet interconnect point.  I traced the route to several
> destinations with SRC addresses from Teleglobe's and Macomnet's IP blocks.
> The problem is that packets with SRC from Teleglobe address space passes
> through with lower delays than packets with Macomnet's SRC addresses.
>
> The first thing what people expect is assymetric routing (i.e. route from
> Alternet goes another way back to us). But it's not possible. Our backup
> provider (AS8342) plugs into Teleglobe also. So Teleglobe advertises the
> right route to Alternet and it's quite impossible for Alternet to have
> another route to Macomnet. I believe it's not a routing problem.
>
> I contacted Teleglobe and they said that it could be a temporary
> congestion. I wonder how could congestion exist for Macomnet addresses
> and not to appear for Teleglobe itself!!! That is the question.
>
> Look at the traces below. The first one uses Teleglobe SRC address, the
> second - ours.
>
> -----------------------------------------
>    Trace with Teleglobe_SRC_ADDRESS :
> -----------------------------------------
> nyy-1#trace
> Protocol [ip]:
> Target IP address: 204.71.127.3
> Source address: 207.45.205.14
>             ^^^^^^^^^^^^^^^^^
>                  Teleglobe's address
> Numeric display [n]:
> Timeout in seconds [3]:
> Probe count [3]:
> Minimum Time to Live [1]:
> Maximum Time to Live [30]:
> Port Number [33434]:
> Loose, Strict, Record, Timestamp, Verbose[none]:
> Type escape sequence to abort.
> Tracing the route to intrepid.net (204.71.127.3)
>
> 1 if-0-1-0.bb6.NewYork.Teleglobe.net (207.45.205.13) [AS 6453] 0 msec 4 msec 0 msec
> 2 if-6-0-0.bb1.NewYork.Teleglobe.net (207.45.221.67) [AS 6453] 0 msec 0 msec 4 msec
> 3 Serial0-1-0.GW2.NYC2.ALTER.NET (157.130.4.165) [AS 701] 0 msec 4 msec
>                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>                                           Teleglobe goes fine.
>   157.130.5.217 [AS 701] 4 msec
> 4 144.ATM2-0.XR2.NYC1.ALTER.NET (146.188.178.150) [AS 701] 4 msec 0 msec 4 msec
> 5 194.ATM3-0.TR2.NYC1.ALTER.NET (146.188.178.198) [AS 701] 0 msec 4 msec 0 msec
> 6 104.ATM7-0.TR2.DCA8.ALTER.NET (146.188.138.169) [AS 701] 8 msec 4 msec 12 msec
> 7 152.63.32.217 [AS 701] 4 msec 8 msec 8 msec
> 8 192.ATM6-0.GW5.TCO1.ALTER.NET (146.188.162.165) [AS 701] 8 msec 8 msec 8 msec
> 9 intrepid-gw2.customer.ALTER.NET (157.130.36.214) [AS 701] 20 msec 20 msec 32 msec
> 10 office-shep.intrepid.net (209.190.129.38) [AS 6359] 20 msec 20 msec 28 msec
> 11 intrepid.net (204.71.127.3) [AS 6359] 20 msec 16 msec 20 msec
>
> ----------------------------------------------------
>  AT THE SAME TIME Trace with Macomnet_SRC_ADDRESS :
> ----------------------------------------------------
>
> nyy-1#trace
> Protocol [ip]:
> Target IP address: 204.71.127.3
> Source address: 195.128.65.33
>             ^^^^^^^^^^^^^^^^^^^
>               Macomnet's address
> Numeric display [n]:
> Timeout in seconds [3]:
> Probe count [3]:
> Minimum Time to Live [1]:
> Maximum Time to Live [30]:
> Port Number [33434]:
> Loose, Strict, Record, Timestamp, Verbose[none]:
> Type escape sequence to abort.
> Tracing the route to intrepid.net (204.71.127.3)
>
> 1 if-0-1-0.bb6.NewYork.Teleglobe.net (207.45.205.13) [AS 6453] 0 msec 0 msec 4 msec
> 2 Teleglobe.net (207.45.221.99) [AS 6453] 0 msec 0 msec 0 msec
> 3  * Serial0-1-0.GW2.NYC2.ALTER.NET (157.130.4.165) [AS 701] 1248 msec
>                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>                                                              !!!!!!
>    157.130.5.217 [AS 701] 1276 msec
> 4 144.ATM2-0.XR1.EWR1.ALTER.NET (146.188.178.146) [AS 701] 1220 msec 1268 msec *
> 5  *  *  *
> 6  *  * 105.ATM6-0.TR1.DCA8.ALTER.NET (146.188.138.121) [AS 701] 1272 msec
> 7 152.63.32.201 [AS 701] 1284 msec 1288 msec *
> 8  * 193.ATM6-0.GW5.TCO1.ALTER.NET (146.188.162.169) [AS 701] 2716 msec *
> 9 intrepid-gw2.customer.ALTER.NET (157.130.36.214) [AS 701] 1392 msec * 1356 msec
> 10 office-shep.intrepid.net (209.190.129.38) [AS 6359] 1244 msec 1244 msec 1328 msec
> 11 intrepid.net (204.71.127.3) [AS 6359] 1284 msec 1324 msec 1392 msec
>
> ----------------
> Have a nice day!
> Esakov Dmitriy, Macomnet Internet Dpt.

-- 
Victor L. Belov
ZENON N.S.P.
+7 095 250 4629