[NTLUG:Discuss] Load/Network Balancing NICs?

[MadHat]

At 04:52 PM 3/14/2001 +0000, juice at airmail.net wrote:
>Scott Womer <Scott at Womer.Com> said:
>
> > Yes...  clustering is definately the answer for the web servers, I was on
> > the TurboCluster beta team for about a year, I've tested HA, LVS, and
> > Piranha... I'm currently leaning towards Piranha which is basically LVS 
> with
> > a management console added to it.
> >
> > But...  my dilemma is the dual ISPs....  in essense I need to cluster two
> > networks that are connected to two different providers with different
> > networks and subnets.  Maybe I'm missing some simple concept and the two
> > networks aren't really an issue, but right now... I can't see the answer.
> >
> >
> >
> > Thanks,
> > Scott Womer
>
>Isp's do it with bgp running on the router. You might have trouble getting an
>isp to run a bgp seesion with a mere user though. You may end up writing a
>script that pretends it's a router.


BGP stands for Border Gateway Protocol, and is not the only routing 
protocol used by ISPs.  The routing protocol is determined on needs and 
what equipment they are running as well as what routing protocols their 
upstream providers use.  BGP is the most common used on the Internet, but 
OSPF (Open Shortest Path First) is very common on the internal networks and 
is an open standard.  EIGRP (Enhanced Interior/Internet Gateway Router 
Protocol) is Cisco proprietary routing protocol and is used some.  Then 
there is also RIP and RIPv2 (Routing Information/Interchange Protocol) and 
one called ISIS (don't know what it stands for, just read about it) that is 
used some, but not much as far as I can tell.

Not all ISPs use the same, and it depends on how their network is 
configured which protocol you might have access to.  If it is a Cisco shop, 
it could be BGP, OSPF or EIGRP.  Even if it isn't a Cisco shop, it could 
very well be OSPF, BGP or RIP.  Just depends on what the network engineers 
know and what they decided to impliment.

Not that this is specific to Linux, just spreading the info around.  Sorry

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--
MadHat at unspecific.com