At 02:03 PM 6/12/97 +0100, John Sloan wrote:
>
>> >Source fastest doesn't send a udp echo packet to your parents. It sends
>> >that packet to the webserver specified in the URL. If that responds
>> >quicker than any of your siblings or parents, then it fetches the page
>> >direct.
>> >
>> >My guess would be that for some reason the udp packets being sent to your
>> >local sites aren't being return - either because they are blocked by
>> >router filters, or because those servers have echo disabled.
>> >
>> John,
>>
>> Here are my observations for a local site.
>>
>> -------------
>> stats/netdb: localhost:8080
>>
>> dated Thu Jun 12 18:28:39 1997
>>
>> Network DB Statistics:
>> Network recv/sent RTT Hops Hostnames
>> 204.143.103.0 6/ 6 422.7 2.0 www.ccom.lk www.upali.lk
>> 129.128.125.0 1/ 1 423.0 17.0 gpu.srv.ualberta.ca
>> bo.cache.nlanr.net 90.0 13.0
>> it.cache.nlanr.net 190.0 19.0
>>
>> --------------
>> access.log
>> --------------
>> 866118705.386 2981 kandy.slt.lk TCP_REFRESH_MISS/200 8380 GET
>> http://www.ccom.lk/ - DIRECT/www.ccom.lk text/html
>> 866118709.052 1230 kandy.slt.lk TCP_CLIENT_REFRESH/304 88 GET
>> http://www.ccom.lk/ - DIRECT/www.ccom.lk -
>>
>> --------------------
>>
>> Here I see that bo, it parents has not measured the RTT ? and that may be
>> why it is not displaying the SOURCE_FASTEST ?
>>
>> I also checked other local domains, and none of them have measurements from
>> the parents for the RTT
>>
>> I have folllowing in my squid.conf
>>
>> local_domain slt.lk
>>
>> Other localsites to me are ac.lk, cybercaf.com etc. but none of them were
>> being measured for RTT by parents.
>>
>> Any Idea why ?
>>
>>
>> - Samath
>
>Your access.log entries show that you're clicking on reload, or something
>like that. When you do that the page is always fetched direct.
>
>A real test is to clear your memory or disk cache on your browser, then
>reenter the URL. That will more accurately mimic what a user of the cache
>would be doing.
>
John
Thanks John, I did that and here is the result,
--------------------
866122565.604 4303 kandy.slt.lk TCP_MISS/200 2373 GET
http://www.cybercaf.com/ - DIRECT/www.cybercaf.com text/html
866122570.760 5049 kandy.slt.lk TCP_MISS/200 2537 GET
http://www.cybercaf.com/logo1.gif - DIRECT/www.cybercaf.com image/gif
866122572.093 6346 kandy.slt.lk TCP_MISS/200 1970 GET
http://www.cybercaf.com/cafe.gif - DIRECT/www.cybercaf.com image/gif
866122573.884 7855 kandy.slt.lk TCP_MISS/200 2625 GET
http://www.cybercaf.com/multi.gif - DIRECT/www.cybercaf.com image/gif
---------------------
204.143.100.0 5/ 5 1198.5 2.0 www.cybercaf.com cybercaf.com
204.143.100.65
206.49.113.0 4/ 5 1210.1 14.6 www.itmin.com www.itmin.net
www1.itmin.com www.lindel.com
bo.cache.nlanr.net 886.0 10.0
----------------------
- Samath
Received on Thu Jun 12 1997 - 06:40:14 MDT
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