[c-nsp] OSPF vs BGP to customer

[Nitzan Tzelniker]

You can also run BGP with 83x routers so $$ is not a problem 

Cable831#sh ver
Cisco IOS Software, C831 Software (C831-K9O3SY6-M), Version
12.3(7)XR3, RELEASE SOFTWARE (fc2)
Synched to technology version 12.3(7.11)T1

Cable831#sh run | b ter bgp
router bgp 65500
 no synchronization
 bgp log-neighbor-changes
 neighbor LINUX peer-group
 neighbor LINUX remote-as 65501
 neighbor LINUX version 4
 neighbor 192.168.1.2 peer-group LINUX
 no auto-summary


Nitzan

On 8/18/05, Adam Greene <maillist at webjogger.net> wrote:
> Thanks all for the replies on and off list.
> 
> The basic idea I get from the responses are:
> #1-    BGP gives more administrative control than OSPF with less likelihood
> of customer advertisements wreaking havoc on the backbone
> #2-    OSPF could be utilized, but customer should be relegated to
> independent area and routes filtered before injection into the backbone
> area. However, this is more complicated and perhaps more prone to nasty
> accidents than just running BGP
> 
> If anyone wants to elaborate even more than you have on the drawbacks of #2,
> that would be great.
> 
> Also, it was pointed that BGP does not necessarily imply more $$ than OSPF.
> Yes, I agree with that, especially because we'd be sending default routes to
> the customer. However, part of the deal is that the customer needs to
> purchase a router in the 1800/2800 range which also supports on-board VPN
> acceleration, and I'm finding that the Advanced IP Services bundles
> (supporting BGP) are more expensive than the Advanced Security bundles in
> general.
> 
> Thanks for all the help,
> Adam
> 
> 
> 
> ----- Original Message -----
> From: "Adam Greene" <maillist at webjogger.net>
> To: <cisco-nsp at puck.nether.net>
> Sent: Wednesday, August 17, 2005 6:05 PM
> Subject: [c-nsp] OSPF vs BGP to customer
> 
> 
> > Hi all,
> >
> > I think I saw this covered on a past thread (problem is, I don't remember
> > when) ...
> >
> > We need to set up a customer with redundant links to two distinct segments
> > of our OSPF network. Ideally, the customer would utilize the same block of
> > IP's on each link. I'm thinking the customer could run OSPF with us, or
> > eBGP. BGP is going to imply more $$ for the customer, and probably more
> work
> > for us. I'm wondering if it's worth the added time & expense.
> >
> > Is it generally recommended to avoid running OSPF with customers for any
> > reason?
> >
> > Thanks,
> > Adam
> >
> > ---
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