[c-nsp] Verifying BGP Propragation

[Paul Stewart]

Thanks very much.. Makes much more sense now..:)

-----Original Message-----
From: addie_list at dacafe.com [mailto:addie_list at dacafe.com] 
Sent: Tuesday, July 27, 2004 3:55 PM
To: Paul Stewart
Cc: 'NSP List'
Subject: RE: [c-nsp] Verifying BGP Propragation


Hi Paul,
        I think your downstream(AS14456) is propogating ur prefixes to his
other Upstream HYDROONETELECOM(AS19752)making itself transit for those
prefixes. Anyways at LINX its showing u as the transit for this AS for some
prefixes. It wont show Globally via AS577 if you advt their prefixes with
prepends.

Rgds
Aditya

MAE-WEST

  Network          Next Hop            Metric LocPrf Weight Path
*> 142.46.52.0/24   198.32.200.125                         0 297 6395
19752 14456 i
*> 199.212.1.0      198.32.200.125                         0 297 6395
19752 14456 i
*> 199.212.112.0    198.32.200.125                         0 297 6395
19752 14456 i
*> 199.212.113.0    198.32.200.125                         0 297 6395
19752 14456 i
*> 204.187.40.0     198.32.200.125                         0 297 6395
19752 14456 i

*> 204.187.55.0     198.32.200.125                         0 297 6395
19752 14456 i
*> 204.187.140.0    198.32.200.125                         0 297 6395
19752 14456 i
*> 205.211.128.0    198.32.200.125                         0 297 6395
19752 14456 i
*> 216.168.109.0    198.32.200.125                         0 297 6395
19752 14456 11666 i
*> 216.168.110.0    198.32.200.125                         0 297 6395
19752 14456 11666 i
*> 216.168.111.0    198.32.200.125                         0 297 6395
19752 14456 11666 i
*> 216.168.112.0    198.32.200.125                         0 297 6395
19752 14456 11666 i
*> 216.168.113.0    198.32.200.125                         0 297 6395
19752 14456 11666 i
*> 216.168.119.0    198.32.200.125                         0 297 6395
19752 14456 11666 i

Total number of prefixes 14


LINX
BGP table version is 0, local router ID is 195.66.225.241 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
*  199.212.1.0      195.66.224.83                          0 5511 3356
10520 11666 14456 i
*  199.212.112.0    195.66.224.83                          0 5511 3356
10520 11666 14456 i
*  199.212.113.0    195.66.224.83                          0 5511 3356
10520 11666 14456 i
*  204.187.55.0     195.66.224.83                          0 5511 3356
10520 11666 14456 i


Teleglobe Toronto CA

BGP routing table entry for 199.212.1.0/24, version 14009085
Paths: (2 available, best #1)
  Not advertised to any peer
  577 11666 11666 11666 11666 11666 14456
    207.45.220.252 (metric 2) from 207.45.220.252 (207.45.220.252)
      Origin IGP, metric 345, localpref 100, valid, internal, best
      Community: 6453:1000 6453:1200 6453:1203

BGP routing table entry for 204.187.55.0/24, version 14009088
Paths: (2 available, best #1)
  Not advertised to any peer
  577 11666 11666 11666 11666 11666 14456
    207.45.220.252 (metric 2) from 207.45.220.252 (207.45.220.252)
      Origin IGP, metric 345, localpref 100, valid, internal, best
      Community: 6453:1000 6453:1200 6453:1203





> Excellent.. Thank you.  Yes, I can see it now too... Weird as it 
> seemed to have disappeared for the past few days....
>
> Now, I just need to confirm AS14456 is showing via our pipe to AS577 
> and my problems are done..:)
>
> Paul
>
>
> -----Original Message-----
> From: Carlson Per [mailto:Per.Carlson at banetele.com]
> Sent: Tuesday, July 27, 2004 11:50 AM
> To: 'NSP List'
> Cc: 'Paul Stewart'
> Subject: RE: [c-nsp] Verifying BGP Propragation
>
>
>
>> If I go to level3's looking glass (which is what AS10520 connects 
>> directly to) then I can see some of AS14456's prefixes showing up but 
>> not on the Internet.
>
> I you by 'Internet' means other providers than Level3, I can confirm 
> that some prefixes do show up:
>
> router>sh ip bgp regexp 11666_14456
> BGP table version is 17129602, local router ID is x.x.x.x 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
> *  199.212.1.0      x.x.x.x                       201      0 1273 3356
> 10520
> 11666 14456 i
> *  199.212.112.0    x.x.x.x                       201      0 1273 3356
> 10520
> 11666 14456 i
> *  199.212.113.0    x.x.x.x                       201      0 1273 3356
> 10520
> 11666 14456 i
> *  204.187.55.0     x.x.x.x                       201      0 1273 3356
> 10520
> 11666 14456 i
>
> 1273 is C&W Europe, and 3356 is another Level3 AS (Europe probably).
>
> Per
>
>
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