Hi,

Are you somehow redirecting traffic to the MT box, or having all the traffic go through the box?

Cache hit rates are going to depend on the size of the network... a 250GB drive would only cache about 4 hours of http traffic on my network... hit rates would be less than 5% I would guess.

I've also heard MT doesn't work very well doing caching. Has this changed since v3 was released?

Travis
Microserv

Dennis Burgess wrote:
You can do this as well with Mikrotik.  

MT is very, very simple.  We have seen avg savings of between 20-40%.  
With 25-30% being avg.  Also, you can specify what sites you want to 
cache, typically done by IP, but you could also say that you only want 
to cache sites that are on different areas etc if you got the IP ranges 
that you wanted to use.

Something else, is that you can specify a bit for the cache hit data.  
This means, you can throttle data that comes from your cache differently 
than the customers standard package!  So, data that comes from your 
cache, maybe goes at full wireless speed etc.  

We usually drop in either a 80 gig or 250 gig SATA2 drive into our 
PoweRouter 732s.  If they have a large customer base, we drop in 2 gig 
of ram just to be on the safe side. 

------------------------------
* Dennis Burgess, CCNA, A+, Mikrotik Certified Trainer
Link Technologies, Inc -- Mikrotik & WISP Support Services*
314-735-0270
http://www.linktechs.net <http://www.linktechs.net/>

*/ Link Technologies, Inc is offering LIVE Mikrotik On-Line Training 
<http://www.linktechs.net/onlinetraining.asp>/*



David E. Smith wrote:
  
What I'd LOVE to figure out how to set up is a spoke and hub cache system.
    
      
Squid (and probably other caches) support something similar, in the form
of parent and child caches. It sorta works backwards from what you
described, but the net benefit would be similar.

Basically, you set up caches at your POP locations, each of which is
configured to use a bigger cache in your NOC as their "parent" cache. (Of
course, you have to set up suitable firewalling at every tower, to
redirect traffic from that POP's customers to the "local" cache.)

Customer types in ebay.com, goes to their "local" cache. If the
information they want isn't there, that cache checks with the big cache in
your NOC. If it also doesn't have that page, it fetches it from the public
Internet, and passes it on down.

It's not a push system, but that's probably alright. I'm not sure how well
a push system would work anyway. Anything like, say, the monthly crop of
Windows Update downloads, they'd get spread out to the individual caches
quickly enough anyway.

David Smith
MVN.net




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