Have you chatted to AfriMan about this? I remember (I think) him briefly chatting about this issue last week sometime?
One or two of our clients had previously seen this too and the mis-config for routing was from Telkom's end
I send you and Afriman the reply from Telkom via PM and this forum after this statement you made and what you should be doing.
I did a trace now to the ESR I connect to and you see the trace goes to JHB and back to CPT.
Tracing route to 105-237-226-65-esr-lo.mtnbusiness.co.za [105.237.226.65]
over a maximum of 30 hops:
1 * * * Request timed out.
2 33 ms 34 ms 34 ms 41.181.221.249
3 28 ms 28 ms 29 ms 41.181.221.250
4 35 ms 84 ms 27 ms qux-jh-dca-2.za-b.za.mtnbusiness.net [41.181.165.115]
5 28 ms 28 ms 29 ms jh-dca-2.za--qux-b.za.mtnbusiness.net [41.181.165.114]
6 50 ms 66 ms 42 ms 41.181.180.10
7 28 ms 28 ms 28 ms tb-cr-2.za--jh-cr-1.za.mtnns.net [196.44.31.67]
8 29 ms 28 ms 27 ms unc-cpt-2.mtnns.net [196.44.18.9]
9 91 ms 27 ms 28 ms qux--tb-dca-2.za-b.za.mtnbusiness.net [41.181.184.31]
10 27 ms 27 ms 27 ms 41.181.223.253
11 27 ms 27 ms 28 ms 105-237-226-65-esr-lo.mtnbusiness.co.za [105.237.226.65]
Trace complete.
And to refresh your memory the reply from telkom:
Morning Jannie
Can at least shed some light but do not agree with the response from Afrihost, the fault is between their access provider MTN and SAIX/IPNet.
Now for the details - DSlam was cutover to a new ESR on Friday, the new ESR (BNG - Alcatell) does not respond to the ICMP request so the hop will just show stars It is however not a problem)
Now what Afrihost is suppose to do is ask MTN why is my CPT client routing to your JHB IPC instead of telling you to phone Telkom...
New BNG address - wblv-ip-bng-2 , Afrihost/MTN should log a ticket to IPNet, the IPC provider to rectify the routing
Suspect the sluggish response could be due to the increased route towards the Jhb IPC and maybe even causing the link to congest.
Let me know if I can be of more assistance.