Re: Multihomed to 2 ISPs - Load Balance?

2006-06-26 Thread Glen Kent
I'd be interested in the technical implementation as well... I vaguely remember Joel presenting a proposal in the Iast IETF which talked about being able to do more or less the same. A bit of googling gives me the drafts that were presented: http://www.ietf.org/internet-drafts/draft-bhatia-

Re: Multihomed to 2 ISPs - Load Balance?

2006-06-26 Thread Randy Bush
> Those who want to the ability control path-selection globally > should participate in IETF workshops to get such functionality > included in future network-architectures ;) future network architectures, in order to scale, will more likely have less global reach of local te granularity. randy

Re: Multihomed to 2 ISPs - Load Balance?

2006-06-26 Thread Per Heldal
On Mon, 26 Jun 2006 06:28:41 + (GMT), "John Smith" <[EMAIL PROTECTED]> said: [snip] > > > There isn't a facility in bgp to tell a neighbor more than one possible > > aspath... or not one that most network folk use currently. > > > > I suppose for a subset of routes you might hack up some com

Re: Multihomed to 2 ISPs - Load Balance?

2006-06-25 Thread John Smith
> you could leak from BGP to 'igp' and make sure you have both paths in the > IGP. NOTE: this is possibly very dangerous... you've been warned sorta :) > (why dangerous? something breaks in your leak mechanism and you drop 'full > internet routes' on ospf/eigrp/isis... network go boom! it is fun t

Re: Multihomed to 2 ISPs - Load Balance?

2006-06-25 Thread Christopher L. Morrow
On Mon, 26 Jun 2006, Daniel Roesen wrote: > > On Mon, Jun 26, 2006 at 02:06:03AM +, Christopher L. Morrow wrote: > > There is a flag on one vendor I believe to force it to send 'all paths', > > How so? BGP as protocol doesn't allow that, unless you use e.g. route Hrm, so I could be speaking

Re: Multihomed to 2 ISPs - Load Balance?

2006-06-25 Thread Daniel Roesen
On Mon, Jun 26, 2006 at 02:06:03AM +, Christopher L. Morrow wrote: > There is a flag on one vendor I believe to force it to send 'all paths', How so? BGP as protocol doesn't allow that, unless you use e.g. route distinguisher to... distinguish them. But them we're firmly into the "special hac

Re: Multihomed to 2 ISPs - Load Balance?

2006-06-25 Thread Christopher L. Morrow
On Mon, 26 Jun 2006, John Smith wrote: > > Replying to what most of the offline replies that i received said: > > > >> We wish to load balance the traffic for a block/range of IP addresses > >> that we learn via BGP4 from our two upstream providers. The problem is > >> that my favorite vendor do

Re: Multihomed to 2 ISPs - Load Balance?

2006-06-25 Thread John Smith
Replying to what most of the offline replies that i received said: >> We wish to load balance the traffic for a block/range of IP addresses >> that we learn via BGP4 from our two upstream providers. The problem is >> that my favorite vendor does not let me install ECMP routes in case of >> route

Multihomed to 2 ISPs - Load Balance?

2006-06-23 Thread John Smith
Hi Fellow Nanogers: I searched the archives and could not find anything that really matches with my requirement. I have been stalking this mailing list since quite some time and its extremely rare that i post. We are multihomed and connected to the Internet via two upstream providers. The i