Re: PPPoE server (high traffic in WDM network)
Hi, 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. Regards usman --- On Wed, 7/15/09, Michelle Konzack bsd4miche...@tamay-dogan.net wrote: From: Michelle Konzack bsd4miche...@tamay-dogan.net Subject: PPPoE server (high traffic in WDM network) To: freebsd-questions@freebsd.org, freebsd-...@freebsd.org Date: Wednesday, July 15, 2009, 11:40 PM Hello, 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) each. 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 Radius. 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 requirements? There is a little problem to get small but reliabel Servers with TWO 10GE interfaces. 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. Any suggestions? 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 Michelle Konzack Systemadministrator 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 http://www.can4linux.org/ c/o Vertriebsp. KabelBW http://www.flexray4linux.org/ Blumenstrasse 2 Jabber linux4miche...@jabber.ccc.de 77694 Kehl/Germany IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947 ICQ #328449886 Tel. FR: +33 6 61925193 ___ freebsd-...@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-isp To unsubscribe, send any mail to freebsd-isp-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
PPPoE server (high traffic in WDM network)
Hello Michelle, I think you better ask about the performance you should expect out of a PPPoE server on the mpd forum. There people on the forum with real numbers. If I go with 1 U Sun Fire X4100M2 the Opteron has 4 Cores and 4 threads per core (AFAIK there is a 8 threads version too) I would ask about this as well. i386? amd64? number of cores? http://sourceforge.net/forum/forum.php?forum_id=44693 HTH, Nikos ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: PPPoE server (high traffic in WDM network)
Hello Nikos, Hi, I just saw your answer while browsing. I am not on i...@... Please CC questi...@. Am 2009-07-16 12:27:06, schrieb Nikos Vassiliadis: Michelle Konzack wrote: 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) each. So, you'll have 96*200 possible PPP clients. How many concurrent PPP sessions do you care to support? And more importantly, how much aggregate bandwidth? Because the customers are permanently On-Line du to the VoIP-Telephone, we count with the full number of clients... The distance between the FTTH DSLAM and the customers can be up to 10km. The idea is now, that we do not simply connect the FTTH DSLAM's to the CISCO switches but building a redunant Ethernet Carrier Network. This mean, we can install in each village there own FTTH DSLAM even if there are 2500 hausholds and we install 26 FTTH DSLAM's there. This mean in theorie 250 GBit Customer Downstream, 26 Gbit Upstream but we count with a 10 GE which is maybe used to 30-50%. OK, if we switch to an Ethernet Carrier Network I could install one or two PPPoE Servers in each village. But if one goes down, the second has to handel 2500 client connections. I *think* the number of clients is doable. I don't know about the bandwidth. Note: This is ONLY the base installation between Kehl, Rheinau, Renchen and Oberkirch (arround 35.000 hausholds) and the whole region has 150.000 hausholds. Don't understand what you mean round-robin and loadbalancing? Read below. snip FreeBSD has a RADIUS library in base. The two notable users of libradius are ppp and net/mpd. The only choice in a ISP environment I think is the net/mpd5 port. Read the outline here: http://www.freebsd.org/cgi/url.cgi?ports/net/mpd5/pkg-descr It is very good and is actually used in large setups. Thankyo for the link, I will red on if I am in Office... Can't reply, but keep in mind that filling a 10GE pipe is a hard task on its own. It depends on how many customers you have and with an Internet access of 100 Mbit plus services like IPTV and VOD you can fill up a 10 GE pipe. I meant filling a 10 Gbit pipe with a general purpose computer architecture is a hard task. Packet forwarding at these rates is tricky. I *think* having more low fidelity BRASs, will serve your needs better that a few high fidelity ones. You mean, putting a bunch of small 1U Servers into a 19 42RU? Yes, you may find that having two small boxes instead of bigger one gives better results performance-wise. You also have to test if SMP helps and how much. A beast with 16 cores is more powerful from a regular computer with 2 cores, but does it help in your setup? You can try NanoBSD and TinyBSD which are FreeBSD based and I believe can fit the bill. These two run with their filesystems read-only mounted which is ideal for flash memories. Can you recomment it for an ISP setup? It's FreeBSD running from a read-only mounted medium. No more, no less. Yes, it's fine for an ISP setup. Hmmm, I am right, that NanoBSD can be bootup over network? (this would be another solution) NanoBSD is meant to run in embedded stand-alone devices. So, I *guess* that is conceptually very far from net booting. Nikos ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: PPPoE server (high traffic in WDM network)
Michelle Konzack wrote: 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) each. So, you'll have 96*200 possible PPP clients. How many concurrent PPP sessions do you care to support? And more importantly, how much aggregate bandwidth? What I now need are a PPPoE Severs (round-robin and loadbalancing) which must work using FreeRadius and PostgreSQL. Don't understand what you mean round-robin and loadbalancing? Read below. There was someone on the debian-isp which has suggested me to use FreeBSD, because the PPPoE it is already build to authenticate against Radius. FreeBSD has a RADIUS library in base. The two notable users of libradius are ppp and net/mpd. The only choice in a ISP environment I think is the net/mpd5 port. Read the outline here: http://www.freebsd.org/cgi/url.cgi?ports/net/mpd5/pkg-descr It is very good and is actually used in large setups. 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 requirements? Can't reply, but keep in mind that filling a 10GE pipe is a hard task on its own. I *think* having more low fidelity BRASs, will serve your needs better that a few high fidelity ones. [snipped] Note 1: Even if I use a Sun Fire, I would prefer a microBSD running from an industrial SD/CF card. MicroBSD seems OpenBSD based. Can't comment on this. You can try NanoBSD and TinyBSD which are FreeBSD based and I believe can fit the bill. These two run with their filesystems read-only mounted which is ideal for flash memories. Nikos ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
PPPoE server (high traffic in WDM network)
Hello, 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) each. 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 Radius. 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 requirements? There is a little problem to get small but reliabel Servers with TWO 10GE interfaces. 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. Any suggestions? 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 Michelle Konzack Systemadministrator 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 http://www.can4linux.org/ c/o Vertriebsp. KabelBW http://www.flexray4linux.org/ Blumenstrasse 2 Jabber linux4miche...@jabber.ccc.de 77694 Kehl/Germany IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947 ICQ #328449886Tel. FR: +33 6 61925193 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
