hi Steen, i want to know that does the julian's patch provide automatic cache deletion and logging in case of failover? this would help me much, thanx, regards, ----------------------------------------------------------Tushar Thakker Elitecore Technologies Ltd. --------------------------------------------------------------- Original Message ----- From: <lartc-request@xxxxxxxxxxxxxxx> To: <lartc@xxxxxxxxxxxxxxx> Sent: Friday, January 02, 2004 10:02 PM Subject: LARTC digest, Vol 1 #1519 - 6 msgs > Send LARTC mailing list submissions to > lartc@xxxxxxxxxxxxxxx > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.ds9a.nl/mailman/listinfo/lartc > or, via email, send a message with subject or body 'help' to > lartc-request@xxxxxxxxxxxxxxx > > You can reach the person managing the list at > lartc-admin@xxxxxxxxxxxxxxx > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of LARTC digest..." > > > Today's Topics: > > 1. Re: Load balancing with failover (Steen Suder, privat) > 2. Re: Load balancing with failover (Anderson O Muniz) > 3. Re: Load balancing with failover (Jurrie Overgoor) > 4. Re: Load balancing with failover (Eric Leblond) > 5. Bandwidth Analysis (Barry Rooney) > 6. Re: low delay stuff.. (Roy) > > --__--__-- > > Message: 1 > Date: Fri, 02 Jan 2004 14:46:10 +0100 > From: "Steen Suder, privat" <steen@xxxxxxxx> > To: lartc@xxxxxxxxxxxxxxx > Subject: Re: Load balancing with failover > > Tushar Thakker wrote: > > Hi all, > > i have network setup with 3 gateways and a large number of intranet nodes, > > i want to do automatic load balancing with failover, > > i have put following ip rules and routes, > > > > ip rule add prio 222 table 222 > > ip route add default table 222 proto static \ > > nexthop via $GWE1 dev $IFE1 \ > > nexthop via $GWE2 dev $IFE2 \ > > nexthop via $GWE2 dev $IFE3 \ > > > > Now, i also want to do failover, > > but the point is that what shall i need to do about deleting the route cache as soon as some gateway becomes dead or unavailable, > > what the system will do on its own and what we need to do for this, > > i need a help, > > AFAIK, You'd have to look at Julian's routepatch(es): > <http://www.ssi.bg/~ja/#routes-2.4>. > > Search for "Dead Gateway Detection". > > It may not be the entire solution, but a step in the right direction. > > -- > Mvh. / Best regards, > Steen Suder <http://www.suder.dk/> > ICQ UIN 4133803 > > > --__--__-- > > Message: 2 > From: "Anderson O Muniz" <andybr@xxxxxxxxxx> > To: <lartc@xxxxxxxxxxxxxxx> > Subject: Re: Load balancing with failover > Date: Fri, 2 Jan 2004 10:59:57 -0200 > > This is a multi-part message in MIME format. > > ------=_NextPart_000_003F_01C3D11F.8F463440 > Content-Type: text/plain; > charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > Hi, > > Put a script to monitor a gateway with crond job and if it fails = > automatically change to gateway 2, you gotta it? > > []'s > Anderson > > ----- Original Message -----=20 > From: Tushar Thakker=20 > To: lartc@xxxxxxxxxxxxxxx=20 > Sent: Friday, January 02, 2004 5:08 PM > Subject: Load balancing with failover > > > Hi all, > i have network setup with 3 gateways and a large number of intranet = > nodes, > i want to do automatic load balancing with failover, > i have put following ip rules and routes, > > ip rule add prio 222 table 222 > ip route add default table 222 proto static \ > nexthop via $GWE1 dev $IFE1 \ > nexthop via $GWE2 dev $IFE2 \ > nexthop via $GWE2 dev $IFE3 \ > > Now, i also want to do failover, > but the point is that what shall i need to do about deleting the route = > cache as soon as some gateway becomes dead or unavailable, > what the system will do on its own and what we need to do for this, > i need a help, > please guide me, > thanx in advance, > Regards, > > ---------------------------------------------------------------- > Tushar Thakker > Elitecore Technologies Ltd. > Ph: 9824080066 / 6405600 Ext-535 > ---------------------------------------------------------------- > Life gives all that one deserves, but not all that one desires... > ---------------------------------------------------------------- > > ------=_NextPart_000_003F_01C3D11F.8F463440 > Content-Type: text/html; > charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> > <HTML><HEAD> > <META http-equiv=3DContent-Type content=3D"text/html; = > charset=3Diso-8859-1"> > <META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR> > <STYLE></STYLE> > </HEAD> > <BODY bgColor=3D#ffffff> > <DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2></FONT> </DIV> > <DIV><FONT face=3DArial size=3D2>Put a script to monitor a gateway with = > crond job=20 > and if it fails automatically change to gateway 2, you gotta = > it?</FONT></DIV> > <DIV><FONT face=3DArial size=3D2></FONT> </DIV> > <DIV><FONT face=3DArial size=3D2>[]'s</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>Anderson</FONT></DIV> > <DIV> </DIV> > <BLOCKQUOTE dir=3Dltr=20 > style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = > BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> > <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV> > <DIV=20 > style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = > black"><B>From:</B>=20 > <A title=3Dtusharthakker@xxxxxxxxxxxxx=20 > href=3D"mailto:tusharthakker@xxxxxxxxxxxxx";>Tushar Thakker</A> </DIV> > <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A = > title=3Dlartc@xxxxxxxxxxxxxxx=20 > href=3D"mailto:lartc@xxxxxxxxxxxxxxx";>lartc@xxxxxxxxxxxxxxx</A> </DIV> > <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Friday, January 02, 2004 = > 5:08=20 > PM</DIV> > <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Load balancing = > with=20 > failover</DIV> > <DIV><BR></DIV> > <DIV><FONT face=3DArial size=3D2>Hi all,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>i have network setup with 3 gateways = > and a large=20 > number of intranet nodes,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>i want to do automatic load balancing = > with=20 > failover,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>i have put following ip rules and=20 > routes,</FONT></DIV> > <DIV> </DIV> > <DIV><FONT face=3DArial = > size=3D2> ip=20 > rule add prio 222 table = > 222<BR> ip=20 > route add default table 222 proto static=20 > = > \<BR> &n= > bsp; =20 > nexthop via $GWE1 dev $IFE1=20 > = > \<BR> &n= > bsp; =20 > nexthop via $GWE2 dev $IFE2 \</FONT></DIV> > <DIV><FONT face=3DArial=20 > = > size=3D2> &nbs= > p; =20 > nexthop via $GWE2 dev $IFE3 \<BR></FONT></DIV> > <DIV><FONT face=3DArial size=3D2>Now, i also want to do = > failover,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>but the point is that what shall i = > need to do=20 > about deleting the route cache as soon as some gateway becomes dead or = > > unavailable,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>what the system will do on its own = > and what we=20 > need to do for this,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>i need a help,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>please guide me,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>thanx in advance,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>Regards,</DIV></FONT> > <DIV><FONT face=3DArial size=3D2> </DIV></FONT> > <DIV><FONT face=3DArial=20 > = > size=3D2>----------------------------------------------------------------= > <BR>Tushar=20 > Thakker<BR>Elitecore Technologies Ltd.<BR>Ph: 9824080066 / 6405600=20 > = > Ext-535<BR>--------------------------------------------------------------= > --<BR>Life=20 > gives all that one deserves, but not all that one=20 > = > desires...<BR>-----------------------------------------------------------= > -----</FONT></DIV></BLOCKQUOTE></BODY></HTML> > > ------=_NextPart_000_003F_01C3D11F.8F463440-- > > > --__--__-- > > Message: 3 > Reply-To: "Jurrie Overgoor" <jurrie.overgoor@xxxxxxxxx> > From: "Jurrie Overgoor" <jurrie.overgoor@xxxxxxxxx> > To: "Anderson O Muniz" <andybr@xxxxxxxxxx>, <lartc@xxxxxxxxxxxxxxx> > Subject: Re: Load balancing with failover > Date: Fri, 2 Jan 2004 16:59:56 +0100 > > > Put a script to monitor a gateway with crond job and if it fails > > automatically change to gateway 2, you gotta it? > > Does that address the problem of routes being cached? > > Greetz -- Jurrie > jurrie.overgoor@xxxxxxxxx > > > --__--__-- > > Message: 4 > Subject: Re: Load balancing with failover > From: Eric Leblond <eric@xxxxxxxxx> > To: Tushar Thakker <tusharthakker@xxxxxxxxxxxxx> > Cc: lartc@xxxxxxxxxxxxxxx > Organization: Regit.org > Date: Fri, 02 Jan 2004 17:02:21 +0100 > > > --=-xCixgWwoczboLryEiCKO > Content-Type: text/plain; charset=iso-8859-15 > Content-Transfer-Encoding: quoted-printable > > Le ven 02/01/2004 =E0 20:08, Tushar Thakker a =E9crit : > > Hi all, > > i have network setup with 3 gateways and a large number of intranet > > nodes, > > i want to do automatic load balancing with failover, > > One find way to do this is to use a combination of : > - nth : > http://www.netfilter.org/documentation/pomlist/pom-base.html#nth > - condition : > http://www.netfilter.org/documentation/pomlist/pom-extra.html#condition > - CONNMARK : > http://www.netfilter.org/documentation/pomlist/pom-extra.html#CONNMARK > - iproute2 > > the first three are patch available in patch-o-matic from netfilter, see > provided link for explanation. > > The idea is the following : > let say that we've got a link A at 512 and a link B at 1024 kbits. > I want to have twice the number of connection on B as on A to really use > link B so i set a counter with 3 slots, I fed slots 0 and 2 to B and > slots 1 to A. > iptables -t mangle -A FORWARD -m state --state NEW NEW -m nth --counter > 1 \ > --every 3 --packet 0 -j MARK --set-mark 0x1 > iptables -t mangle -A FORWARD -m state --state NEW -m nth --counter 1 \ > --every 3 --packet 1 -j MARK --set-mark 0x2 > iptables -t mangle -A FORWARD -m state --state NEW -m nth --counter 1 \ > --every 3 --packet 1 -j MARK --set-mark 0x1 > You need to restore and save the mark with connmark to have mark follow > connection and tcp session coming from the same IP. > > Next route mark 0x1 on link B and route 0x2 on link A (use ip rules and > diferrent routing tables) > > Here you've got a good load-balancing. > > Next thing use condition on each line to have packet being marked only > if the corresponding link is detected as UP (else marked it with the > other link mark if it is itself not down). To test if the link is up > you'll have to write a simple daemon which ping gateway and set the > corresponding condition to 0 or 1 if link is down or up. > > BR, > --=20 > Eric Leblond > NuFW, Now User Filtering Works (http://www.nufw.org) > > --=-xCixgWwoczboLryEiCKO > Content-Type: application/pgp-signature; name=signature.asc > Content-Description: Ceci est une partie de message > =?ISO-8859-1?Q?num=E9riquement?= =?ISO-8859-1?Q?_sign=E9e=2E?= > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.3 (GNU/Linux) > > iD8DBQA/9ZYMnxA7CdMWjzIRAq03AJ41R8cCIgsPr4wBQn2qk2o/Z6MzCwCbBSMG > Iz0Kdgvz86Q8a4ZXUQBbJvw= > =/X/i > -----END PGP SIGNATURE----- > > --=-xCixgWwoczboLryEiCKO-- > > > --__--__-- > > Message: 5 > From: "Barry Rooney" <brooney@xxxxxxxxxxxxxxxxxxxxx> > To: <LARTC@xxxxxxxxxxxxxxx> > Date: Fri, 2 Jan 2004 22:01:56 -0000 > Subject: Bandwidth Analysis > > This is a multi-part message in MIME format. > > ------=_NextPart_000_001A_01C3D17C.09674AA0 > Content-Type: text/plain; > charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > Hi All, > Can anyone recommend an opensource bandwidth monitoring tool that can = > plot throughtput and breakdown into sockets/services > for proving the performance of my qdiscs? > > Many thanks > > Barry. > > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.555 / Virus Database: 347 - Release Date: 23/12/2003 > ------=_NextPart_000_001A_01C3D17C.09674AA0 > Content-Type: text/html; > charset="iso-8859-1" > Content-Transfer-Encoding: quoted-printable > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> > <HTML><HEAD> > <META http-equiv=3DContent-Type content=3D"text/html; = > charset=3Diso-8859-1"> > <META content=3D"MSHTML 6.00.2800.1276" name=3DGENERATOR> > <STYLE></STYLE> > </HEAD> > <BODY bgColor=3D#ffffff> > <DIV><FONT face=3DArial size=3D2>Hi All,</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>Can anyone recommend an opensource = > bandwidth=20 > monitoring tool that can plot throughtput and breakdown into=20 > sockets/services</FONT></DIV> > <DIV><FONT face=3DArial size=3D2>for proving the performance of my=20 > qdiscs?</FONT></DIV> > <DIV><FONT face=3DArial size=3D2></FONT> </DIV> > <DIV><FONT face=3DArial size=3D2>Many thanks</FONT></DIV> > <DIV><FONT face=3DArial size=3D2></FONT> </DIV> > <DIV><FONT face=3DArial size=3D2>Barry.</FONT></DIV> > <DIV><FONT face=3DArial size=3D2></FONT> </DIV> > <DIV> </DIV> > <DIV><FONT face=3DArial size=3D2><BR>---<BR>Outgoing mail is certified = > Virus=20 > Free.<BR>Checked by AVG anti-virus system (<A=20 > href=3D"http://www.grisoft.com";>http://www.grisoft.com</A>).<BR>Version: = > 6.0.555 /=20 > Virus Database: 347 - Release Date: = > 23/12/2003</FONT></DIV></BODY></HTML> > > ------=_NextPart_000_001A_01C3D17C.09674AA0-- > > > --__--__-- > > Message: 6 > From: "Roy" <roy@xxxxxx> > To: <lartc@xxxxxxxxxxxxxxx> > Subject: Re: low delay stuff.. > Date: Sat, 3 Jan 2004 02:24:07 +0200 > > > I think all htb shaper is based in this idea > shaper do not drop packets it just queues them and dequeues acording > priority and bandwitch if there is no space in queue then forwarded packet > wil be lost > what can you suggest better? > > what do you mean with "shortened network-path" > > I think it is exactly bad that htb is optimized for speed and not for > functionality. > > > > > i was thinking is there a way to include some mechanism > > for high priority selection&queueing mechnism... so that we can > > get better support for low-delay traffic.. > > Every now and then I see a question on the list, how to handle > > video&audio&game traffic, and no definitive answer to this question.. > > There has to be solution :"), let me tell i'm not a c-programmer so i cant > do that, > > but think there is a way to achieve this in not so hard way...my proposal > is > > to make something similar to the way cisco do it..i.e. > > Have one high priority queue/class that have higher priority over the > other classes, > > probably we can do this now but it is not made as exception i.e. depends > from > > your setup, what other classes do u have...etc... > > > > My idea is to have an exception for this super class with shortened > "network-path", > > so that we get lower possible delays.. i thik in cisco they called it > priority-queue > > > > Is such thing feasable or it can be acomplished with current qdiscs and > > work even under heavy load with thousand of classes... > > > > > > tia > > > > _______________________________________________ > > LARTC mailing list / LARTC@xxxxxxxxxxxxxxx > > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/ > > > > --__--__-- > > _______________________________________________ > LARTC mailing list > LARTC@xxxxxxxxxxxxxxx > http://mailman.ds9a.nl/mailman/listinfo/lartc > > > End of LARTC Digest > _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
