Today we have faced issue of network slowness issues in our network, since we are using two ISP for interner i.e TATA and Reliance and a link load balancer i.e Radware. Issue is that on few of the system internet applications are running fine while on other system internet browsing get delayed response., i.e websites takes too much time to open.
We found following observation before going for the work around.
1.Check link utilisation of both TATA and Reliance, found to be 18Mb TATA & 2.8Mb(Reliance), which is quite normal.
2. Check ISP's current status and latency by pinging their gateways which were also ok.
Microsoft Windows XP [Version 5.1.2600]
C) Copyright 1985-2001 Microsoft Corp.
:\Documents and Settings\Administrator>ping 124.124.39.90
inging 124.124.39.90 with 32 bytes of data:
equest timed out.
ing statistics for 124.124.39.90:
Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),
ontrol-C
C
:\Documents and Settings\Administrator>ping 124.124.38.90
inging 124.124.38.90 with 32 bytes of data:
eply from 124.124.38.90: bytes=32 time=53ms TTL=241
eply from 124.124.38.90: bytes=32 time=54ms TTL=241
eply from 124.124.38.90: bytes=32 time=53ms TTL=241
eply from 124.124.38.90: bytes=32 time=53ms TTL=241
ing statistics for 124.124.38.90:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
pproximate round trip times in milli-seconds:
Minimum = 53ms, Maximum = 54ms, Average = 53ms
:\Documents and Settings\Administrator>
:\Documents and Settings\Administrator>ping 14.141.216.233
inging 14.141.216.233 with 32 bytes of data:
eply from 14.141.216.233: bytes=32 time=17ms TTL=246
eply from 14.141.216.233: bytes=32 time=19ms TTL=246
eply from 14.141.216.233: bytes=32 time=6ms TTL=246
eply from 14.141.216.233: bytes=32 time=7ms TTL=246
ing statistics for 14.141.216.233:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
pproximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 19ms, Average = 12ms
:\Documents and Settings\Administrator>ping 14.141.216.234
inging 14.141.216.234 with 32 bytes of data:
eply from 14.141.216.234: bytes=32 time=11ms TTL=58
eply from 14.141.216.234: bytes=32 time=7ms TTL=58
eply from 14.141.216.234: bytes=32 time=8ms TTL=58
ing statistics for 14.141.216.234:
Packets: Sent = 3, Received = 3, Lost = 0 (0% loss),
pproximate round trip times in milli-seconds:
Minimum = 7ms, Maximum = 11ms, Average = 8ms
:\Documents and Settings\Administrator>ping 124.124.38.89
inging 124.124.38.89 with 32 bytes of data:
eply from 124.124.38.89: bytes=32 time=50ms TTL=53
eply from 124.124.38.89: bytes=32 time=49ms TTL=53
eply from 124.124.38.89: bytes=32 time=49ms TTL=53
eply from 124.124.38.89: bytes=32 time=49ms TTL=53
ing statistics for 124.124.38.89:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
pproximate round trip times in milli-seconds:
Minimum = 49ms, Maximum = 50ms, Average = 49ms
:\Documents and Settings\Administrator>
Check the traceroute from WinMTR and cmd also
http://winmtr.net////download the winMTR applications from the link and check which hop is creating issue.
3.Checked individually with some users which are facing the slowness in network and found their internet is routed to reliance ISP.
4. Checked with other user which are not facing problems , those users internet is routed from TATA ISP.
5. Since we have 50/50 load balancing at Radware end, i suspect the issue could be at Reliance ISP. So after bypassing Reliance ISP from the network. issue has been resolved.
Also, attaching the traceroute which is showing at 7th hope ISP has issue and found RTO.
Then I followed up for the same issue with Reliance and found that reliance link has some issue.
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