nanog mailing list archives

Re: Need help from UUNet's routing specialist!


From: "Dmitry S. Esakov" <esakov () macomnet ru>
Date: Thu, 9 Dec 1999 20:16:44 +0300 (MSK)


On Thu, 9 Dec 1999, Erik-Jan Bos wrote:

Dmitry,

We (as8470) are Teleglobe customer. And we experience terrible
delays on Teleglobe to UUNet interconnect points. Teleglobe's customer
support engineers insist, that the problem caused by UUNet's routes
prioritization.
But I belive that this assymetric routing initiated by Teleglobe, not
UUNet. 

We are a TGO customer as well and we do not see the problem. Here's a
traceroute:

surgeon bos % date
Thu Dec  9 18:10:43 CET 1999

surgeon bos % traceroute www.uu.net
traceroute to www.uu.net (208.243.117.123): 1-30 hops, 38 byte packets
 1  surroute.surfnet.nl (192.87.109.1)  0.554 ms  0.441 ms  0.399 ms
 2  AR1.Utrecht.surf.net (145.41.49.161)  101 ms  2.28 ms  1.82 ms

[cut]

14  260.GW1.TCO3.customer.ALTER.NET (157.130.33.222)  220 ms  112 ms  136 ms
15  prod-334a.tco3.web.uu.net (208.243.113.236)  92.7 ms  *  88.3 ms

Perhaps this is fixed?

No, it's not. We're fighting for 2 weeks already :(
BTW, we're plugged into TG in NY...


Could you please send me 'sh ip bgp 195.128.65.33' performed at
Serial3-1-1.GW1.DCA3.ALTER.NET (157.130.39.89). 

I am expecting to see communities or MEDs set at TG router that lowres
route priority and makes traffic to go back via _Seattle_Denver_Chicago_NY_.
Any help is _greatly_ appreciated!

---------------------
Example of delays:
---------------------
nyy-1#trace        
Protocol [ip]:      
Target IP address: www.uu.net   
Translating "www.uu.net"...domain server (195.128.64.3) [OK]

Source address: 195.128.65.33 
Loose, Strict, Record, Timestamp, Verbose[none]: 
Type escape sequence to abort.
Tracing the route to www.uu.net (208.243.117.123)

1 if-0-1-0.bb6.NewYork.Teleglobe.net (207.45.205.13) [AS 6453] 0 msec 0 msec
 0 msec
2 if-3-0.core2.nqt.Teleglobe.net (207.45.221.98) [AS 6453] 4 msec 0 msec 0 m
sec
3 if-1-0.core1.Washington.Teleglobe.net (207.45.223.170) [AS 6453] 8 msec 4 
msec 8 msec
4 if-2-0-0.bb1.Washington.Teleglobe.net (207.45.221.228) [AS 6453] 8 msec 4 
msec 8 msec
5 Serial3-1-1.GW1.DCA3.ALTER.NET (157.130.39.89) [AS 701] 1356 msec 1152 mse
c 1180 msec
                                                    ^^^^^^^^^^^^^^^^^^
                                                         !!!!!!!!!!!

6 110.ATM3-0.XR1.DCA1.ALTER.NET (146.188.161.54) [AS 701] 1048 msec 1144 mse
c 1136 msec
7 195.ATM8-0-0.GW1.DCA1.ALTER.NET (146.188.161.17) [AS 701] 1172 msec 1036 m
sec 1244 msec
8 260.GW1.TCO3.customer.ALTER.NET (157.130.33.222) [AS 701] 876 msec 788 mse
c 812 msec
9 prod-334a.tco3.web.uu.net (208.243.113.236) [AS 11486] 1112 msec
[cut]



Serial3-1-1.GW1.DCA3.ALTER.NET (157.130.39.89)

__
 
Erik-Jan Bos
Manager Network Services SURFnet
The Netherlands, Europe


----------------   
Have a nice day!
Esakov Dmitriy, Macomnet Internet Dpt.




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