PPPoE server (high traffic in WDM network)
usmanbsd at yahoo.com
Fri Aug 21 23:50:13 UTC 2009
I've little off topic suggestion regarding network design.
The solution you are implementing will mean to make hundreds of users share the same broadcast domain. As all your FTTH and other DSLAMS would be working in bridge mode.
This scenerio is not safe as if anyone of your clients will start his own pppoe server you will be in strange trouble, there can be other issues too.
I guess your DSLAMs must have built in pppoe support and radius client, if its there then every port of dslams can be separate broadcast domain. This will cause you extra routing management (depending upon your scsnerio)
In case your DSLAMS have no pppoe feature then i would suggest you to at least put every DSLAM's uplink port in deparate VLAN and connect pppoe server using trunk port or multiple single ports.
And before implementing this solution consult your DSLAM vendor cause ive observed problems in ipdslams when used in bridge/transperant mode.
--- On Wed, 7/15/09, Michelle Konzack <bsd4michelle at tamay-dogan.net> wrote:
From: Michelle Konzack <bsd4michelle at tamay-dogan.net>
Subject: PPPoE server (high traffic in WDM network)
To: freebsd-questions at freebsd.org, freebsd-isp at freebsd.org
Date: Wednesday, July 15, 2009, 11:40 PM
I am using since over 10 years Debian GNU/Linux and 3 years longer
NetBSD. Also I have a running PicoBSD box.
Now I have a problem more grave...
I am ongoing to install a CWDM (1GE) and DWDM (10GE) network for the
Alvarion BreezeACCESS VL (38 base stations) and more then 200 Iskratel
FTTH DSLAMS of 96 ports (each with 100MBit, but only one 1GE Upstream)
What I now need are a PPPoE Severs (round-robin and loadbalancing) which
must work using FreeRadius and PostgreSQL.
There was someone on the <debian-isp> which has suggested me to use
FreeBSD, because the PPPoE it is already build to authenticate against
So, what I like to know is, if I have a 1GE and 10GE network, how many
clients can one PPPoE Server handel and what are the CPU/Memory
There is a little problem to get small but reliabel Servers with TWO
I think, consumer mainboards are not suitabel even someone told me under
Linux, I need 2 MHz CPU-Speed and 2 MByte of Memory per client...
Please note, that I am ongoing ISP with over 150.000 customers in DE
between Freiburg and Karlsruhe (Baden-Württemberg) and using consumer
mainboards is NOT reliabel since in the last 6 years I lost at least 20
per year in 280 Low-Cost Servers.
A "Sun Fire X4100M2" would be more reliabel... but even the smallest CPU
would be overkill because the machine has only 1GE interfaces.
Note 1: Even if I use a Sun Fire, I would prefer a microBSD
running from an industrial SD/CF card.
Note: Please do NOT CC me, I am on the list and read it...
Thanks, Greetings and nice Day/Evening
Tamay Dogan Network
Debian GNU/Linux Consultant
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
<http://www.tamay-dogan.net/> Michelle Konzack
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