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Re: squid mib information

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Hi Amos,

Thanks for your kind response.
On 7/01/2012 8:32 p.m., Ben wrote:
Hi,

We would like to use squid snmp mibs to get statistics of squid
performance and cache gain.

We are using squid-3.1.10.By reference ofhttp://wiki.squid-cache.org/Features/Snmp

We have a list of OIDs information in one line.Can we have any document which provide more details regarding each OIDs. Some OIDs are confusing.So if we have a document which provides more details about them that is much helpful to understand them in appropriate meaning.

There is no better documentation than that page. Unless you are one of the rare people able to read MIB files without getting confused. In which case the MIB.txt can be found in the Squid sources.


Some of are OIDs, which we decided to use with mrtg to get cache gain, bandwidth saving statistics from squid.


*.1.3.2.1.2.0 cacheHttpHits Counter32 2.0+ Number of HTTP Hits

It provided url cache hit , my percaption is right?

Yes.



*.1.3.2.1.4.0 cacheHttpInKb Counter32 2.0+ Number of HTTP KB's received

It says that how many traffic comes from internet to squid , my perception is right?


No. Received by Squid from clients.


*.1.3.2.1.5.0 cacheHttpOutKb Counter32 2.0+ Number of HTTP KB's transmitted

It says that how many traffic goes out from squid to internet , my perception is right?

No. Sent by Squid to clients.



*.1.3.2.1.13.0 cacheServerOutKb Counter32 2.0+ KB's of traffic sent to servers

what  does it says ?


"KB's of traffic sent to servers ". I think you already know what a server is.

server means squid itself, right? internet to squid ( in traffic )

*.1.3.2.1.12.0 cacheServerInKb Counter32 2.0+ KB's of traffic received from servers

what does it says ?


"traffic received from servers".
squid to internet ( out traffic )



if i m wrong, kindly correct me.

The server metrics do not mention HTTP because this is the KB used by all server protocols.


Our network design :


       internet
           |
       core router ---------->  squid box
           |
      local network


We want to identify that how much cache gain / bandwidth saving we have
from squid?

Bandwidth Savings KB is:   cacheHttpOutKb - cacheServerInKb

Bandwidth Savings % is:  cacheRequestByteRatio.1


Amos

Ben


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