[afnog] ZA <-> MZ Routing Problem

[Antonio Godinho]

Hi ,

I have sent them the email but they have not confirmed response.

On Thu, 11 Oct 2012 11:22:17 +0200, Graham Beneke wrote
> Hi,
> 
> On 10/10/2012 10:57, Antonio Godinho wrote:
> > I am in Mozambique and can also relay your info to them. I have noticed 
this 
> > as well for ISPs that use TDM services, the traffic does flow from here 
> > directly to SA but is returned in many cases through London. I remember 
> > vaguely doing some investigation before and it seems a lot of the 
networks 
> > presenting the problem were under the MTN business network ASN. TDM is 
> > connected to Telkom, it seems the advertisements are not going through 
to 
> > TDM.
> 
> Thanks Antonio (and Wonder). I have not yet seen any noticeable changes.
> Have you been able to raise anyone at TDM yet.
> 
> Graham
> 
> > 
> > Cheers,
> > 
> > AG
> > 
> > On Mon, 08 Oct 2012 07:54:49 +0200, Graham Beneke wrote
> >> Hi All
> >>
> >> Is anyone from Telecomunicações de Moçambique (TDM) on this list? 
> >> I'd be happy for on-list or off-list responses.
> >>
> >> I have been tracking a routing problem between TDM and South Africa for
> >> about the last 6 months and it seems that it has not been resolved.
> >>
> >> I am seeing high latency between TDM and South Africa and this is
> >> negatively impacting Internet performance for a number of customers and
> >> downstream ISPs in Mozambique, Malawi and potentially elsewhere too.
> >>
> >>  4  196.43.52.42 (196.43.52.42)  1.435 ms  1.698 ms  1.605 ms
> >>  5  196.43.26.106 (196.43.26.106)  1.518 ms  1.414 ms  1.401 ms
> >>  6  tdm-mozambique-gw2.telkom-ipnet.co.za (196.25.179.210)  175.688 
> >> ms 176.444 ms  176.313 ms 7  gi-0-2.cta-isp-car-3.tdm.mz 
> >> (41.220.160.202)  176.233 ms  176.154 ms 176.075 ms 8  
> >> stats.zambeze.tdm.mz (196.28.224.21)  175.997 ms  176.333 ms 
> >>  176.178 ms
> >>
> >> The round-trip latency between Johannesburg and Maputo should be 
> >> under 30ms yet it is over 170ms. There does appear to be a direct 
> >> cross border link so this should not be the case.
> >>
> >> What appears to be happening is that while routes from TDM are
> >> propagating to peers in ZA, the 2000+ ZA route are not propagating into
> >> MZ. Packets towards MZ are flowing directly cross border while the
> >> return path is asynchronous via Europe.
> >>
> >> Can anyone assist with resolving this?
> >>
> >> -- 
> >> Graham Beneke
> >> Network Engineer      | Neology (PTY) Ltd.
> >> graham at neology.co.za  | http://www.neology.co.za/
> >> Dir: +27-10-500-5906  | Suite 301, Block C, Eva Park
> >> Tel: +27-11-476-1933  | Cresta, Johannesburg
> >> Skype: grbeneke       | MSN: graham at neology.co.za
> >>
> >> _______________________________________________
> >> afnog mailing list
> >> http://afnog.org/mailman/listinfo/afnog
> > 
> > 
> > --
> > Antonio Godinho
> > B.Sc., MCP+I, MCSE, CCNA, CCNP
> > CIUEM
> > Maputo
> > Mozambique
> >
> 
> -- 
> Graham Beneke
> Network Engineer      | Neology (PTY) Ltd.
> graham at neology.co.za  | http://www.neology.co.za/
> Dir: +27-10-500-5906  | Suite 301, Block C, Eva Park
> Tel: +27-11-476-1933  | Cresta, Johannesburg
> Skype: grbeneke       | Jabber: graham at neology.co.za


--
Antonio Godinho
B.Sc., MCP+I, MCSE, CCNA, CCNP
CIUEM
Maputo
Mozambique