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Mailman List Mirror (Read Only)
1

With all the aquisitions going on, would't it be strange if a major
NSP player started announcing through another major NSP. I don't
know about you, but _I_ find that strange.

BGP routing table entry for 207.121.184.0/21, version 3907425
Paths: (2 available, best #2, advertised over IBGP)
  701 199
    192.157.69.60 (metric 17) from 165.117.1.17 (165.117.1.120)
      Origin IGP, metric 2000000000, localpref 100, valid, internal
      Community: 2548:666
      Originator : 165.117.1.120, Cluster list: 0.38.227.186,
165.117.1.15
  701 199
    192.41.177.248 from 192.41.177.248 (137.39.3.57)
      Origin IGP, metric 28, localpref 100, valid, external, best
      Community: 2548:668

Type escape sequence to abort.
Tracing the route to web180b.bbnplanet.com (207.121.185.180)

  1 *
    br1.tco1.alter.net (192.41.177.248) [AS 1800] 4 msec 252 msec
  2 431.atm10-0.cr1.tco1.alter.net (137.39.13.14) [AS 701] 236 msec
252 msec 256
msec
  3 189.Hssi4-0.CR1.BOS1.Alter.Net (137.39.69.74) [AS 701] 256 msec
256 msec 244
msec
  4 311.atm1-0.gw1.bos1.alter.net (137.39.13.233) [AS 701] 284 msec
512 msec 252
msec
  5 bbn1-gw.customer.ALTER.NET (157.130.3.106) [AS 701] 260 msec
260 msec 276 ms
ec
  6 cambridge1-colo2.bbnplanet.net (4.0.2.241) [AS 1] 284 msec 272
msec 260 msec
  7 web180b.bbnplanet.com (207.121.185.180) [AS 199] 288 msec * 36
msec

2

Ya.. I noticed that a couple of days ago. I sent mail to noc, peering,
ops etc. at BBNplanet but I haven't gotten a reply as to what is going on
over there. You would think in peering with BBN you would get 199 behind
AS1 somewhere.. but I only get one route with the ASPath of 1_199_ the
rest come from UUnet.

core1-Col#sho ip bgp regex _1_199_

   Network Next Hop Metric LocPrf Weight Path
* i205.159.212.0 198.32.184.19 940 100 0 1 199 i
* 198.32.130.39 70 0 5646 1 199 i
*>i 192.41.177.2 560 100 0 1 199 i

core1-Col#sho ip bgp regex _199_
BGP table version is 22368414, local router ID is 206.183.241.252
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
*> 199.92.136.0 198.32.130.39 70 0 5646 701 199 i
* i 206.183.239.142 70 0 3847 701 199 i
*> 199.94.217.0 198.32.130.39 70 0 5646 701 199 i
* i 206.183.239.142 70 0 3847 701 199 i
* i205.159.212.0 198.32.184.19 940 100 0 1 199 i
* 198.32.130.39 70 0 5646 1 199 i
*>i 192.41.177.2 560 100 0 1 199 i
*> 205.181.112.0/22 198.32.130.39 70 0 5646 701 199 i
* i 206.183.239.142 70 0 3847 701 199 i
*> 207.121.184.0/21 198.32.130.39 70 0 5646 701 199 i
* i 206.183.239.142 70 0 3847 701 199 i

T..S