North American Network Operators Group
Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

filtering customer BGP sessions

  • From: John Payne
  • Date: Fri Jul 11 15:22:32 2003

I thought it was now common knowledge that it is a good thing to filter what your customers announce via BGP. Unfortunately, Broadwing seems to have missed this (broadwing -> conversent.net -> algx just isn't right):

traceroute to smoe.org (199.201.145.78), 30 hops max, 38 byte packets
1 maynard (206.229.91.130) 1.132 ms 1.089 ms 1.046 ms
2 sl-gw20-nyc-6-1-0-TS1.sprintlink.net (160.81.0.45) 28.540 ms 30.302 ms 28.507 ms
3 sl-bb23-nyc-1-0.sprintlink.net (144.232.13.208) 28.475 ms 28.468 ms 37.592 ms
4 sl-bb24-rly-0-0.sprintlink.net (144.232.20.183) 51.684 ms 52.427 ms 41.497 ms
5 sl-gw21-rly-9-0.sprintlink.net (144.232.14.54) 39.972 ms 39.842 ms 40.162 ms
6 sl-browing-11-0.sprintlink.net (160.81.98.2) 48.255 ms 48.120 ms 48.040 ms
7 P4-2.c0.wash.broadwing.net (216.140.8.1) 48.210 ms 64.849 ms 47.813 ms
8 p2-0.a0.nwak.broadwing.net (216.140.8.194) 60.419 ms 65.005 ms 52.365 ms
9 65.89.249.42 (65.89.249.42) 88.852 ms 54.413 ms 81.290 ms
10 ct1-bb1-at102-50.conversent.net (199.26.223.182) 57.536 ms 55.187 ms 55.745 ms
11 ma1-bb2-at100-52.conversent.net (206.53.1.2) 48.845 ms 48.395 ms 49.570 ms
12 ma1-gw1-fa3-1-0.conversent.net (216.41.61.81) 56.991 ms 50.135 ms 48.877 ms
13 26-99-41-216.wor.ma.nevd.net (216.41.99.26) 53.808 ms 51.835 ms 80.405 ms
14 ip67-153-123-85.z123-153-67.customer.algx.net (67.153.123.85) 53.443 ms 78.096 ms 71.467 ms
15 bos10-core1-ge-0-0-0-0.atlas.algx.net (165.117.171.1) 60.773 ms 76.644 ms 93.462 ms
16 dca10-core2-so-7-0-0-0.atlas.algx.net (165.117.200.18) 66.975 ms 108.967 ms 104.196 ms
17 dca10-core1-so-0-1-0-0.atlas.algx.net (165.117.192.45) 100.413 ms 137.700 ms 90.357 ms
18 iad3-core3-pos5-0.atlas.algx.net (165.117.67.62) 96.945 ms 114.586 ms 93.480 ms
19 iad3-core2-pos6-0.atlas.algx.net (165.117.64.5) 76.542 ms 140.544 ms 80.533 ms
20 iad3-peer10-pos7-0.atlas.algx.net (165.117.69.165) 77.692 ms 106.074 ms 64.825 ms
21 ash1-br1-g1-1.gnaps.net (199.232.44.34) 110.832 ms 93.490 ms 99.952 ms
22 res1-rs1-gi-2-2.gnaps.net (64.220.44.42) 89.152 ms 65.417 ms 111.144 ms
23 qcy1-rs1-p6-1.gnaps.net (199.232.44.26) 91.686 ms 74.041 ms 74.662 ms
24 qcy1-ar1-g1-0.gnaps.net (199.232.42.114) 77.763 ms 80.636 ms 81.436 ms
25 link75-250.cent.net (199.232.75.250) 86.499 ms 73.475 ms 98.989 ms
26 smoe-gw-s0.smoe.org (199.201.145.237) 101.319 ms 86.022 ms 95.706 ms
27 jane.smoe.org (199.201.145.78) 83.337 ms 92.693 ms 85.427 ms