nanog mailing list archives

Re: Any issue with www.cisco.com


From: Henry Linneweh <hrlinneweh () sbcglobal net>
Date: Tue, 6 Sep 2005 10:41:28 -0700 (PDT)


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%


--- Bruce Pinsky <bep () whack org> wrote:


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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   7.2


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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