Re: bgp 2 isp question

From: Fake Name <fname84_at_gmail.com>
Date: Tue, 31 Aug 2010 14:41:25 -0400

Ah so theres no set number to make sure like append the as 15 times on it?

On Tue, Aug 31, 2010 at 2:21 PM, Tyson Scott <tscott_at_ipexpert.com> wrote:

> 1 more than the longest path. You should go out on some Looking glass
> websites and see what the path shows on the internet.
>
>
>
> Regards,
>
>
>
> Tyson Scott - CCIE #13513 R&S, Security, and SP
>
> Managing Partner / Sr. Instructor - IPexpert, Inc.
>
> Mailto: tscott_at_ipexpert.com
>
>
>
>
>
> *From:* Fake Name [mailto:fname84_at_gmail.com]
> *Sent:* Tuesday, August 31, 2010 1:53 PM
> *To:* Tyson Scott
> *Cc:* Cisco certification
> *Subject:* Re: bgp 2 isp question
>
>
>
> Tyson
>
>
>
> Thanks for the response. Let me ask you in the real world how many times
> would you prepend your as onto it to make it less perfered?
>
>
>
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>
>
> On Tue, Aug 31, 2010 at 12:26 PM, Tyson Scott <tscott_at_ipexpert.com> wrote:
>
> Yes that will work or you can use path prepending to make the AS-PATH
> shorter for the one you want. Both are typical scenario's used on the
> internet.
>
> Regards,
>
> Tyson Scott - CCIE #13513 R&S, Security, and SP
> Managing Partner / Sr. Instructor - IPexpert, Inc.
> Mailto: tscott_at_ipexpert.com
>
>
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Fake
> Name
> Sent: Tuesday, August 31, 2010 12:06 PM
> To: Cisco certification
> Subject: bgp 2 isp question
>
> If i have a /23 block and I have two isps and 2 different routers. I want
> to perfer traffic to come into 1 router for the block opposed to the other.
> From what I understand /24 is the highest mask that wont be summarized.
>
> All traffic should come into router1 untill it is down then traffic will
> come into router 2 because they have more specific routes correct?
>
>
> Router1 most perfered
> ip route x.x.x.x x.x.x.x (next hop) 0
> ip route x.x.x.x x.x.x.x (next hop) 0
> router bgp x
> network x.x.xx.x 255.255.255.0
> network x.x.x.x 255.255.255.0
>
> Router2 less perfered
> ip route x.x.x.x 255.255.254.0 (next hop) 0
> router bgp x
> network x.x.x.x 255.255.254.0
>
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Received on Tue Aug 31 2010 - 14:41:25 ART

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