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RE: RR.COM has backbone problems

  • From: Kevin McElearney
  • Date: Mon Feb 07 11:53:46 2000

Vadim, thank you for pointing this out.  Or Network Engineers believe this
is an issue with an optical repeater from our carrier.  We will be doing
intrusive testing to confirm.

The second issue was a graveyard staff training issue and will be corrected
as well.

	- Kevin

-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of
Vadim Antonov
Sent: Monday, February 07, 2000 4:07 AM
To: nanog@merit.edu
Subject: RR.COM has backbone problems




I tried to contact their NOC, but the bozo on call didn't
even want to hear what the problem is, advising me to contact
my cable provider (how helpful).

Please if there's anyone with a clue from RR.COM / MEDIAONE.NET
or any other Time Warner holding - wake up, you've got a big
problem.  It doesn't show on your network monitors, but it is sure
to screw your customers.

And, please track down who was on the NOC telephone ((703) 345-3416)
at this time (see message headers) and kick him hard for being
an idiot and not taking a real trouble report.


It appears that somehow long packets between boxes
24.218.189.197 and 24.218.188.118 get corrupted:

kitty 67: ping -s1500 24.218.188.118
PING 24.218.188.118 (24.218.188.118): 1500 data bytes
1508 bytes from 24.218.188.118: icmp_seq=0 ttl=246 time=164.0 ms
wrong data byte #1404 should be 0x7c but was 0xaa
        14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a
2b 2c 2d 2e 2f 30 31 32 33
<skipped>
1508 bytes from 24.218.188.118: icmp_seq=1 ttl=246 time=164.6 ms
1508 bytes from 24.218.188.118: icmp_seq=2 ttl=246 time=166.1 ms
1508 bytes from 24.218.188.118: icmp_seq=3 ttl=246 time=164.7 ms
1508 bytes from 24.218.188.118: icmp_seq=5 ttl=246 time=164.3 ms
1508 bytes from 24.218.188.118: icmp_seq=6 ttl=246 time=168.6 ms
wrong data byte #1404 should be 0x7c but was 0xaa
	14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c
2d 2e 2f 30 31 32 33
<skipped>
1508 bytes from 24.218.188.118: icmp_seq=7 ttl=246 time=163.9 ms
wrong data byte #924 should be 0x9c but was 0xaa
        14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a
2b 2c 2d 2e 2f 30 31 32 33
<skipped>

kitty 70:  ping -s1500 24.218.189.197
PING 24.218.189.197 (24.218.189.197): 1500 data bytes
1508 bytes from 24.218.189.197: icmp_seq=0 ttl=248 time=144.3 ms
1508 bytes from 24.218.189.197: icmp_seq=1 ttl=248 time=83.2 ms
1508 bytes from 24.218.189.197: icmp_seq=2 ttl=248 time=82.4 ms
1508 bytes from 24.218.189.197: icmp_seq=3 ttl=248 time=80.8 ms
1508 bytes from 24.218.189.197: icmp_seq=4 ttl=248 time=80.9 ms


kitty 72: /usr/sbin/traceroute 24.218.189.170
traceroute: Warning: Multiple interfaces found; using 205.158.141.97 @ eth0
traceroute to 24.218.188.118 (24.218.188.118), 30 hops max, 40 byte packets
 1  192.168.203.1 (192.168.203.1)  19.680 ms  19.540 ms  19.521 ms
 2  mpk.core.rtr.wavepath.net (205.158.140.129)  19.825 ms  19.699 ms
21.328 ms
 3  pop.access.rtr.wavepath.net (205.158.140.249)  21.097 ms  21.252 ms
21.030 ms
 4  pop.border.rtr.wavepath.net (205.158.140.1)  21.204 ms  21.146 ms
23.449 ms
 5  us-ca-scl-web1-e8.rtr.concentric.net (205.158.7.97)  22.883 ms  21.793
ms  22.879 ms
 6  us-ca-scl-border2-fe4-0d0.rtr.concentric.net (207.88.95.9)  24.269 ms
101.210 ms  23.812 ms
 7  us-ca-scl-core2-g5-0-0.rtr.concentric.net (207.88.1.3)  23.506 ms
24.663 ms  22.793 ms
 8  PacBellrr.com (198.32.128.50)  23.761 ms  25.667 ms  26.280 ms
 9  pabrt02-pabrt03.rr.com (24.218.189.197)  26.108 ms  57.919 ms  24.778 ms
10  24.218.188.118 (24.218.188.118)  110.427 ms *  116.969 ms
11  bsgsr01-nygsr01.rr.com (24.218.188.21)  116.396 ms  115.738 ms  116.053
ms
12  cambrt01-bsgsr01.rr.com (24.128.191.58)  113.668 ms  114.166 ms  115.836
ms
13  cmrtr01-srp3.ne.mediaone.net (24.218.189.170)  113.589 ms  114.720 ms
113.175 ms


(Note that the problem affects all _transit_ packets):

kitty 78: ping -s1500 24.218.188.21
PING 24.218.188.21 (24.218.188.21): 1500 data bytes
1508 bytes from 24.218.188.21: icmp_seq=1 ttl=245 time=525.0 ms
1508 bytes from 24.218.188.21: icmp_seq=2 ttl=245 time=171.2 ms
1508 bytes from 24.218.188.21: icmp_seq=3 ttl=245 time=173.8 ms
1508 bytes from 24.218.188.21: icmp_seq=4 ttl=245 time=174.3 ms
wrong data byte #1404 should be 0x7c but was 0xaa
	14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c
2d 2e 2f 30 31 32 33
<skipped>


Regards,

--vadim






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