[j-nsp] Help on BGP

[Tommy J]

thanks 

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
only. 

Tommy 

--- 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
> quickly.
> 
> 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.
> 
> 
> Thanks,
> 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
> that
> > I haven't done before. Any help will be more than
> > appericated.
> >
> > We are a small ISP running BGP4 on our M10i. We
> have
> > two upstreams A and B who are providing us with a
> full
> > internet routing table. And in turn we are acting
> as
> > Transit to our customers and providing them a
> blended
> > internet routing table with routes from both
> upstreams
> > (The best path).
> > Now we are getting a demands from our customers
> who
> > wants routes only from one upstream only i.e. non
> > blended internet routing table either routes from
> ISP
> > 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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