I've been noticing that the peering link from AT&T to NTT has been overloaded for the last few weeks resulting in an average latency at or above 50ms. Latency is usually ~25ms to my colo'd servers in San Jose.
The culprit is the router at IP 192.205.37.58 which belongs to AT&T:
NetRange: 192.205.0.0 - 192.205.255.255
CIDR: 192.205.0.0/16
OriginAS:
NetName: NETBLK-ATT
NetHandle: NET-192-205-0-0-1
Parent: NET-192-0-0-0-0
NetType: Direct Allocation
RegDate: 1992-08-03
Updated: 2012-04-02
Ref: http://whois.arin.net/rest/net/NET-192-205-0-0-1
The trace route from my home connection to one of my colo'd servers:
|------------------------------------------------------------------------------------------|
| WinMTR statistics |
| Host - % | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
| gw-condo.domain.home.bivek.net - 0 | 20 | 20 | 0 | 0 | 1 | 0 |
| 192.168.2.254 - 0 | 20 | 20 | 0 | 0 | 1 | 0 |
| Request timed out. - 100 | 5 | 0 | 0 | 0 | 0 | 0 |
| Request timed out. - 100 | 5 | 0 | 0 | 0 | 0 | 0 |
| 12.83.39.193 - 0 | 20 | 20 | 20 | 22 | 25 | 23 |
| 12.122.114.29 - 0 | 20 | 20 | 21 | 23 | 25 | 23 |
| 192.205.37.58 - 6 | 17 | 16 | 46 | 51 | 54 | 51 |
|xe-0-6-0-29.r07.snjsca04.us.ce.gin.ntt.net - 0 | 20 | 20 | 47 | 57 | 85 | 63 |
| ns3.bivek.net - 0 | 20 | 20 | 48 | 50 | 53 | 49 |
|________________________________________________|______|______|______|______|______|______|
WinMTR v1.00 GPLv2 (original by Appnor MSP - Fully Managed Hosting & Cloud Provider)
I'll post another MTR result once traffic levels subside after 12am.
Anyone else in the Bay Area with AT&T noticing congestion to certain routes during the evening peak time?
[EDIT]
Here's the MTR results off-peak time:
|------------------------------------------------------------------------------------------|
| WinMTR statistics |
| Host - % | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
| gw-condo.domain.home.bivek.net - 0 | 50 | 50 | 0 | 0 | 0 | 0 |
| 192.168.2.254 - 0 | 50 | 50 | 0 | 0 | 2 | 0 |
|99-104-124-3.lightspeed.sntcca.sbcglobal.net - 45 | 18 | 10 | 25 | 28 | 32 | 28 |
| Request timed out. - 100 | 10 | 0 | 0 | 0 | 0 | 0 |
| 12.83.39.193 - 0 | 50 | 50 | 19 | 22 | 25 | 23 |
| 12.122.114.29 - 0 | 50 | 50 | 21 | 23 | 27 | 22 |
| 192.205.37.58 - 0 | 50 | 50 | 23 | 25 | 31 | 26 |
|xe-0-6-0-29.r07.snjsca04.us.ce.gin.ntt.net - 0 | 49 | 49 | 24 | 102 | 1759 | 34 |
| ns3.bivek.net - 0 | 50 | 50 | 23 | 25 | 40 | 26 |
|________________________________________________|______|______|______|______|______|______|
WinMTR v1.00 GPLv2 (original by Appnor MSP - Fully Managed Hosting & Cloud Provider)
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