[j-nsp] Help on BGP
sunman_1970 at yahoo.com
Fri Jul 7 13:38:18 EDT 2006
I think if I do that then I will be sending only
partial routes to the customer. I may be wrong.
The task on hand is to get full internet routing table
from ISP A bypass the blended forwarding table and
give the customer the bgp routes learned from ISP A
--- ADAM CALLIS <adam.callis at gmail.com> wrote:
> One way (there are many I am sure) that this can be
> achieved is to tag the
> routes with a Community when they arrive from your
> external BGP Sources
> Then, on your downstream peers, you could tell it to
> only advertise routes
> that match that community
> I can think of a few more complex ways to attempt
> this, but it gets dirty
> One other note, I am not exactly sure if it will
> send a route from ISP B
> that isn't your preferred route even it it is tagged
> with the proper
> community. The advertise-inactive may solve that,
> but I am not sure.
> Adam Callis
> JNCIE-M #159
> On 7/7/06, Tommy J <sunman_1970 at yahoo.com> wrote:
> > Hello
> > I am new to Junipers and I need help over a setup
> > I haven't done before. Any help will be more than
> > appericated.
> > We are a small ISP running BGP4 on our M10i. We
> > two upstreams A and B who are providing us with a
> > internet routing table. And in turn we are acting
> > Transit to our customers and providing them a
> > internet routing table with routes from both
> > (The best path).
> > Now we are getting a demands from our customers
> > wants routes only from one upstream only i.e. non
> > blended internet routing table either routes from
> > A or ISP B. How can I achieve this?
> > I did little research on this subject and logical
> > routers seem to be an option.
> > Any help on this will appreciated.
> > Thanks
> > Tommy
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