Page 1 of 1

Routes to Singapore

Posted: Thu Feb 16, 2017 7:42 pm
by Les
Hi,

Are there currently any issues with the routes to Singapore as I've been experiencing higher ping times and very slow connectivity to servers located in Singapore when using an NBN VDSL connection lately?

Over the past few days my FTP downloads are currently transferring at 0.3Mbps whereas I'd been typically getting around 30Mbps from the same server.

When I do a speed test via speeedtest.net to Australian servers I'm getting 75Mbps down and 40Mbps up, but when testing against any of the Singapore servers I'm getting about 0.3Mbps down (if it completes at all) and 4Mbps up.

I've reset my router and purged my DNS cache, but still get the same result.

Here is a tracert.:

Tracing route to aws-sin-001.destiny.com.au [122.248.253.147]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 172.24.1.252
2 8 ms 8 ms 8 ms 203.1.233.220.static.exetel.com.au [220.233.1.203]
3 8 ms 8 ms 9 ms 162.23.1.10.in-addr.arpa [10.1.23.162]
4 8 ms 9 ms 9 ms 161.43.102.1
5 * * * Request timed out.
6 * * * Request timed out.
7 * * * Request timed out.
8 * * * Request timed out.
9 * * * Request timed out.
10 61 ms 60 ms 60 ms 59.154.18.126
11 108 ms 108 ms 108 ms 203.208.177.121
12 108 ms 108 ms 108 ms 203.208.158.209
13 108 ms * 109 ms 203.208.175.70
14 * * * Request timed out.
15 * * * Request timed out.
16 111 ms 111 ms 111 ms 203.83.223.21
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 112 ms 111 ms 111 ms aws-sin-001.destiny.com.au [122.248.253.147]

Trace complete.

Les

Re: Routesto Singapore

Posted: Thu Feb 16, 2017 7:57 pm
by KavindaS
Les wrote:Hi,

Are there currently any issues with the routes to Singapore as I've been experiencing higher ping times and very slow connectivity to servers located in Singapore when using an NBN VDSL connection lately?

Over the past few days my FTP downloads are currently transferring at 0.3Mbps whereas I'd been typically getting around 30Mbps from the same server.

When I do a speed test via speeedtest.net to Australian servers I'm getting 75Mbps down and 40Mbps up, but when testing against any of the Singapore servers I'm getting about 0.3Mbps down (if it completes at all) and 4Mbps up.

I've reset my router and purged my DNS cache, but still get the same result.
Can you confirm to me the DNS settings assigned in your router WAN settings?

Re: Routesto Singapore

Posted: Thu Feb 16, 2017 8:12 pm
by Les
Hi,

The windows workstations on the LAN get their DNS queries processed by the DNS server service on our Windows server.

The DNS server is configured to forward requests to these dns server in order, and if all forwarder are unavailable to use root hints.

220.233.0.1 (ns1.exetel.com.au)
220.233.0.2 (ns2.exetel.com.au)
8.8.8.8 (Google)
8.8.4.4 (Google)
139.130.4.4 (Telstra)
61.88.88.88 (Optus)

Just checked the router an it's currently being assigned the DNS servers 220.233.0.3 and 220.233.0.4 so I added the routers IP address as the first DNS forwarder and added 220.233.0.3 and 220.233.0.4 as the 2nd and 3rd forwarders.

I restart the DNS server, cleared it's cache and cleared the DNS cache on the workstation, but I still getting the same result in a speed test.

Les

Re: Routesto Singapore

Posted: Thu Feb 16, 2017 9:21 pm
by Dazzled
Do you have any trace weapons better than Windows? The hops Optus->Singapore are asymmetric.

Re: Routesto Singapore

Posted: Thu Feb 16, 2017 10:10 pm
by Les
Dazzled,

I don't have any non-windows boxes at this site.

Les

Re: Routesto Singapore

Posted: Thu Feb 16, 2017 10:49 pm
by KavindaS
Les wrote:Dazzled,

I don't have any non-windows boxes at this site.

Les
DNS servers 220.233.0.3 and 220.233.0.4 are correct. Currently we have no similar issues reported in related to this.

Re: Routes to Singapore

Posted: Tue Feb 21, 2017 8:48 am
by Les
Hi,

The issue appears top have resolved itself as the download speeds yesterday (Monday) were back to normal.

I would still be interested to know what the issue was as it still appeared to be a link issue to me.

Les

Re: Routes to Singapore

Posted: Tue Feb 21, 2017 11:43 am
by Dazzled
Still an asymmetrical route-
....
11: 59.154.18.126 (59.154.18.126) 99.954ms asymm 12
12: 59.154.18.124 (59.154.18.124) 100.746ms asymm 11
13: 203.208.177.121 (203.208.177.121) 267.349ms asymm 12
14: 203.208.175.70 (203.208.175.70) 267.702ms asymm 20
15: 203.208.175.70 (203.208.175.70) 264.280ms asymm 20
16: 52.93.8.95 (52.93.8.95) 275.906ms asymm 21
17: 52.93.8.139 (52.93.8.139) 272.923ms asymm 20
18: 203.83.223.21 (203.83.223.21) 276.982ms
....

Re: Routes to Singapore

Posted: Tue Feb 21, 2017 11:05 pm
by KavindaS
Les wrote:Hi,

The issue appears top have resolved itself as the download speeds yesterday (Monday) were back to normal.

I would still be interested to know what the issue was as it still appeared to be a link issue to me.

Les
I will check this further with our senior network engineers and update the thread.