Calling all Cisco experts ….
I’m looking for any advice and recommendations for a couple of my customers who are looking for High Availability for their Internet Edge. They don’t have their own CIDR block but do have multiple ISPs. I was thinking they could apply for their own /24 and pursue BGP peering with their providers but would imagine they just aren’t handing out /24s anymore. Does anyone know what the minimum requirements providers are looking for to allow BGP advertisements? I’m also curious as to what router at a minimum would be recommended. I’m thinking the 2900 ISR G2s could probably handle a full BGP table with enough memory.
I was also wondering if anyone of you have seen IPv6 being deployed anywhere between smaller customers and ISPs or anywhere in general.
With internet access being so cheap a lot of people have multiple providers, but I don’t know of any other solution to provide redundancy other than the primary/backup ISP capabilities on the ASA/ link state tracking etc. That can really only provide outbound redundancy since they usually have their web presence using the provider assigned IPs from their primary connection. I have also seen some people using basic Load Balancing Solutions ( Barracuda ) that can do some nice things with DNS fairly cheap to provide resiliency that way. But if there is a similar Cisco solution I would rather push that.