From: William Chen (kwchen@netvigator.com)
Date: Fri Mar 19 2004 - 10:49:11 GMT-3
Dear Scott,
Can you say more about how the "caching for your won servers" be done by
WCCP?
Thanks a lot.
Best Regards,
William Chen
----- Original Message -----
From: "Scott Morris" <swm@emanon.com>
To: "'William Chen'" <kwchen@netvigator.com>; <ihatecisco@att.net>; "'Ng,
Kim Seng David (David)'" <ksng@avaya.com>; <ccielab@groupstudy.com>
Sent: Friday, March 19, 2004 9:46 PM
Subject: RE: Confirmation on my understanding of WCCP
> The "in" or "out" is from the perspective of the router. Requests will
> either be inbound to an interface or outbound towards someplace else.
>
> Your reality may be caching for your own servers, or for client
requests....
> Has nothing to do with the commands though. Just the routers'
perspective.
>
>
> Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, CISSP,
> JNCIS, et al.
> IPExpert CCIE Program Manager
> IPExpert Sr. Technical Instructor
> swm@emanon.com/smorris@ipexpert.net
> http://www.ipexpert.net
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> William Chen
> Sent: Friday, March 19, 2004 8:02 AM
> To: ihatecisco@att.net; Ng, Kim Seng David (David); ccielab@groupstudy.com
> Subject: Re: Confirmation on my understanding of WCCP
>
> Hi,
>
> Sorry, I don't understand what is the different you mean by Client side
> web caching and Server side web caching.
>
> I think WCCP is always: Client --> Cache Engineer ---> Web Servers.
>
> "In" means inbound traffic will be checked for redirection, and "Out"
> means outbound traffic will be checked for redirection.
>
> Am I misunderstand?
>
> Best Regards,
> William Chen
>
> >
> > The Out would be used for redirecting outbound requests to the internet.
> > {Client side web caching}
> >
> > The In would be used for redirecting inbound requests from the
> > internet {server side web caching.}
> >
> > ip wccp <service> redirect
> > To enable packet redirection on an outbound or inbound interface using
> > Web Cache Communication Protocol (WCCP), use the ip wccp service
> > redirect interface configuration command. To disable WCCP redirection,
> > use the no form of this command.
> >
> > ip wccp service redirect {out | in}
> > no ip wccp service redirect {out | in} Syntax Description
> >
> > service
> > Specifies the service group. You can specify the web-cache
> > keyword, or you can specify the identification number(from 0 to 99) of
> > the service.
> >
> > redirect
> > Enables packet redirection checking on an outbound or
> > inbound interface.
> >
> > out
> > Specifies packet redirection on an outbound interface.
> >
> > in
> > Specifies packet redirection on an inbound interface.
> >
> >
> >
> >
> > ***A small point to note
> > Its a good idea to make sure that you check all commands to see if
> > they
> need
> > a special command to be enabled before assuming they are configured.
> >
> > I know some features like mls qos, WRED & Switches-Port Security can
> > burn you if you aren't paying attention, and forget to enable them.
> >
> > ----- Original Message -----
> > From: "Ng, Kim Seng David (David)" <ksng@avaya.com>
> > To: <ccielab@groupstudy.com>
> > Sent: Friday, March 19, 2004 5:27 AM
> > Subject: Confirmation on my understanding of WCCP
> >
> >
> > > Hello group,
> > >
> > > I just would like to confirm my understanding on the "ip wccp
> > > redirect
> > OUT" command. Gone through the grpstudy archives, doc cd and cisco.com
> > but just to make sure I get it right. I had no problems understanding
> > the
> other
> > "redirect in" cmd though. Anyway, I have taken the following config
> example
> > from doc CD:
> > >
> > > "Running a Web Cache Service Example The following example shows a
> > > web cache service configuration session:
> > >
> > > router# configure terminal
> > > router(config)# ip wccp web-cache
> > > router(config)# interface ethernet 0 router(config-if)# ip wccp
> > > web-cache redirect out "
> > >
> > > My understanding from the above config is that any http request
> > > outgoing
> > from interface e0 will be re-directed to some other interfaces where
> > the web-cache is residing. Interface e0 would likely be a connection
> > to the internet or where a web server is located. Interface e0 will
> > not be where the web-cache is located.
> > >
> > > Is my understanding correct?
> > >
> > > Thanks in advance
> > > David
> > >
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