[pox-dev] Prioritized servers in ip_loadbalancer

[Murphy McCauley]

Override _pick_server() in the iplb class to not do it at random.

-- Murphy

On Apr 22, 2014, at 9:26 PM, shads s <shasi0625 at gmail.com> wrote:

> Hey all
> 
> Is it possible to configure the servers in the ip_loadbalancer?
> For example, suppose I have 2 servers wherein server 1 has a larger capacity than server 2 and hence can handle increased traffic coming from the clients compared to server 2.
> I need to make this functionality work. Can anyone guide me?
> 
> 
> On Fri, Apr 18, 2014 at 1:38 AM, <pox-dev-request at lists.noxrepo.org> wrote:
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> Today's Topics:
> 
>    1. Re: Where is the corresponding source code for the        following
>       Object. (Murphy McCauley)
>    2. Re: Where is the corresponding source code for the following
>       Object. (Shiyao Ma)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 16 Apr 2014 13:50:28 -0700
> From: Murphy McCauley <murphy.mccauley at gmail.com>
> To: Shiyao Ma <i at introo.me>
> Cc: pox-dev at lists.noxrepo.org
> Subject: Re: [pox-dev] Where is the corresponding source code for the
>         following Object.
> Message-ID: <778446FC-347A-4BC8-BB5D-E5EE3F5E2DA0 at gmail.com>
> Content-Type: text/plain; charset="iso-2022-jp"
> 
> On Apr 16, 2014, at 3:27 AM, Shiyao Ma <i at introo.me> wrote:
> 
> > Hi.
> >
> > I am following https://github.com/noxrepo/pox/blob/carp/pox/forwarding/l2_learning.py#L121
> > I wonder where is the corresponding source for that event obj (The relevant class definition), so I can know what the event.attr stands for and how many attrs the event has.
> 
> This is a PacketIn event handler, so the event object is a PacketIn.  You can either grep the codebase for "class PacketIn", or you can look up the PacketIn event in the POX manual.  It's in a subsection called "PacketIn" under "OpenFlow Events: Responding to Switches".
> 
> > Also, I'd like to know the relevant class for the connection object. https://github.com/noxrepo/pox/blob/carp/pox/forwarding/l2_learning.py#L86
> 
> The connection object is from a class called Connection.  You can search the codebase for "class Connection", or you can look it up in the manual.  It's in a subsection called "Connection Objects".
> 
> 
> For either or both of these, you could also use Python to find the answers for you.  For example, to find the class of the connection, object, insert the following near line 86 of l2_learning:
> import inspect
> print inspect.getsourcefile(type(connection)), inspect.getsourcelines(type(connection))[1]
> 
> Et voila, it'll print out the file and line number of the class.  Or simply insert "help(connection)" to get the whole pydoc for it.  Or save it to a global variable, run the POX "py" module, and then do "help(<global variable name>)" from the commandline.
> 
> 
> Hope that helps.
> 
> -- Murphy
> 
> > Thanks and regards.
> > --
> >
> > ????????????????http://introo.me?
> 
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> ------------------------------
> 
> Message: 2
> Date: Thu, 17 Apr 2014 10:35:22 +0800
> From: Shiyao Ma <i at introo.me>
> To: Murphy McCauley <murphy.mccauley at gmail.com>
> Cc: pox-dev at lists.noxrepo.org
> Subject: Re: [pox-dev] Where is the corresponding source code for the
>         following Object.
> Message-ID:
>         <CAJQX3Dzvp-ccBVpySqEsx=19EcAAqAyoNfb0QQ4AzxV2xbN-Jg at mail.gmail.com>
> Content-Type: text/plain; charset="iso-2022-jp"
> 
> Thanks and especially for the three methods.
> 
> 
> Regards.
> 
> 
> 2014-04-17 4:50 GMT+08:00 Murphy McCauley <murphy.mccauley at gmail.com>:
> 
> > On Apr 16, 2014, at 3:27 AM, Shiyao Ma <i at introo.me> wrote:
> >
> > Hi.
> >
> > I am following
> > https://github.com/noxrepo/pox/blob/carp/pox/forwarding/l2_learning.py#L121
> > I wonder where is the corresponding source for that event obj (The
> > relevant class definition), so I can know what the event.attr stands for
> > and how many attrs the event has.
> >
> >
> > This is a PacketIn event handler, so the event object is a PacketIn.  You
> > can either grep the codebase for "class PacketIn", or you can look up the
> > PacketIn event in the POX manual.  It's in a subsection called "PacketIn"
> > under "OpenFlow Events: Responding to Switches".
> >
> > Also, I'd like to know the relevant class for the connection object.
> > https://github.com/noxrepo/pox/blob/carp/pox/forwarding/l2_learning.py#L86
> >
> >
> > The connection object is from a class called Connection.  You can search
> > the codebase for "class Connection", or you can look it up in the manual.
> >  It's in a subsection called "Connection Objects".
> >
> >
> > For either or both of these, you could also use Python to find the answers
> > for you.  For example, to find the class of the connection, object, insert
> > the following near line 86 of l2_learning:
> > import inspect
> > print inspect.getsourcefile(type(connection)),
> > inspect.getsourcelines(type(connection))[1]
> >
> > Et voila, it'll print out the file and line number of the class.  Or
> > simply insert "help(connection)" to get the whole pydoc for it.  Or save it
> > to a global variable, run the POX "py" module, and then do "help(<global
> > variable name>)" from the commandline.
> >
> >
> > Hope that helps.
> >
> > -- Murphy
> >
> > Thanks and regards.
> > --
> >
> > ????????????????http://introo.me?
> >
> >
> >
> 
> 
> --
> 
> ????????????????http://introo.me?
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