Last night I had a maintenance so I use www.cisco.com for testing the
network connectivity.
But it seems that I'm seeing about 20% packet loss from www.cisco.com.
I did same test from various points including my home cable modem
connection, which is not my company's network,
but I'm getting same result.
Are you guys seeing same thing or different result?
Is there any issue with cisco.com network?
Hyun
mtr shows the packet loss in the last hop for me:
14. sjck-dmzbb-gw1.cisco.com 0.0% 62 66.6 75.4 64.5 293.7 37.1
15. sjck-dmzdc-gw2.cisco.com 0.0% 62 62.5 65.4 59.2 155.4 13.1
16. www.cisco.com 14.8% 62 59.2 64.7 58.1 88.4 7.2
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Gerry Boudreaux wrote:
mtr shows the packet loss in the last hop for me:
14. sjck-dmzbb-gw1.cisco.com 0.0% 62 66.6 75.4 64.5 293.7 37.1
15. sjck-dmzdc-gw2.cisco.com 0.0% 62 62.5 65.4 59.2 155.4 13.1
16. www.cisco.com 14.8% 62 59.2 64.7 58.1 88.4 7.2
I'm seeing roughly ~25 percent packet loss, it varies.
same here
5. ge-5-0-115.hsa1.Orlando1.Level3.net 0% 50 50 44 41 43 50
6. ge-6-2-0.mp1.Orlando1.Level3.net 0% 50 50 42 41 47 114
7. ae-0-0.bbr1.SanJose1.Level3.net 0% 50 50 113 112 119 240
8. ge-11-2.ipcolo1.SanJose1.Level3.net 0% 50 50 113 112 118 280
9. p1-0.cisco.bbnplanet.net 0% 50 50 114 112 122 253
10. sjce-dmzbb-gw1.cisco.com 0% 50 50 115 112 119 253
11. sjck-dmzdc-gw2.cisco.com 0% 49 50 113 112 118 245
12. www.cisco.com 25% 36 49 114 112 117 177
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Chip Mefford wrote:
Gerry Boudreaux wrote:
mtr shows the packet loss in the last hop for me:
14. sjck-dmzbb-gw1.cisco.com 0.0% 62 66.6 75.4 64.5 293.7 37.1
15. sjck-dmzdc-gw2.cisco.com 0.0% 62 62.5 65.4 59.2 155.4 13.1
16. www.cisco.com 14.8% 62 59.2 64.7 58.1 88.4 7.2I'm seeing roughly ~25 percent packet loss, it varies.
If you are relying on ping and traceroute tests to measure packet loss,
then you are coming to false conclusions.
ICMP responses are throttled by many, many devices including routers, load
balancers, firewalls, IPS devices, etc, etc.
- --
I am seeing no issues here other than the initial poll
Hop IP Address Host Name
Sent Recv RTT Av RTT Min RTT Max RTT
% Loss
1 68.120.139.144
adsl-68-120-139-144.dsl.snfc21.pacbell.net 1
1 1875 ms 1875 ms 1875 ms 1875 ms 0.000%
2 68.120.139.254
adsl-68-120-139-254.dsl.snfc21.pacbell.net 1
1 63 ms 63 ms 63 ms 63 ms 0.000%
3 206.171.134.131 dist2-vlan50.snfc21.pbi.net
1 1 63 ms 63 ms 63 ms 63 ms
0.000%
4 216.102.176.226 bb2-10g2-0.snfcca.sbcglobal.net
1 1 63 ms 63 ms 63 ms 63 ms
0.000%
5 151.164.190.189 bb1-p4-0.snfcca.sbcglobal.net
1 1 63 ms 63 ms 63 ms 63 ms
0.000%
6 151.164.242.65 core1-p14-1.crsfca.sbcglobal.net
1 1 78 ms 78 ms 78 ms 78 ms
0.000%
7 151.164.240.134 bb1-p1-0.crsfca.sbcglobal.net
1 1 78 ms 78 ms 78 ms 78 ms
0.000%
8 151.164.41.101 ex1-p3-0.eqsjca.sbcglobal.net
1 1 78 ms 78 ms 78 ms 78 ms
0.000%
9 151.164.250.57 ge-6-12.car4.SanJose1.Level3.net
1 1 78 ms 78 ms 78 ms 78 ms
0.000%
10 4.68.123.73
ge-7-1.ipcolo1.SanJose1.Level3.net 1 1
78 ms 78 ms 78 ms 78 ms 0.000%
11 4.0.26.14 p1-0.cisco.bbnplanet.net
1 1 78 ms 78 ms 78 ms 78 ms
0.000%
12 128.107.239.53 sjce-dmzbb-gw1.cisco.com
1 1 78 ms 78 ms 78 ms 78 ms
0.000%
13 128.107.224.69 sjck-dmzdc-gw1.cisco.com
1 1 78 ms 78 ms 78 ms 78 ms
0.000%
14 198.133.219.25 www.cisco.com
1 1 78 ms 78 ms 78 ms 78 ms
0.000%
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Hash: SHA1Chip Mefford wrote:
> Gerry Boudreaux wrote:
>
>>>mtr shows the packet loss in the last hop for me:
>>>
>>>14. sjck-dmzbb-gw1.cisco.com
0.0% 62 66.6 75.4 64.5
293.7 37.1
>>>15. sjck-dmzdc-gw2.cisco.com
0.0% 62 62.5 65.4 59.2
155.4 13.1
>>>16. www.cisco.com
14.8% 62 59.2 64.7 58.1
88.4 7.2
>
>
> I'm seeing roughly ~25 percent packet loss, it
varies.
>If you are relying on ping and traceroute tests to
measure packet loss,
then you are coming to false conclusions.ICMP responses are throttled by many, many devices
including routers, load
balancers, firewalls, IPS devices, etc, etc.- --
bep
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iD8DBQFDHdMFE1XcgMgrtyYRAsjzAKDniJ5MAj+PWxH6vgYaImbJc/9A9wCfdNCx
Yet another "Me too!" response.
We often use pings to www.cisco.com as a Internet connectivity test
from globally dispersed sites. These are typical ploss for ICMP
pings. The most likely answer, as others have pointed out, is
throttling at the destination. The fact that so many people use
www.cisco.com for this purpose is probably why they need to throttle
traffic.
Hyunseog Ryu wrote: