If both interfaces end on the same router you could use a LAG and just one 
session.

You can still talk bgp to the remote side and only accept a default from them 
(if you ask then to send one).

Lots of choices...

Sent from a mobile device

> On 22 May 2016, at 02:02, Satish Patel <[email protected]> wrote:
> 
> Whole reason implementing BGP to have control on null routing IP when under 
> DDoS. 
> 
> I know it's stupid having single provide with BGP. But we are expending and 
> this is planning for future network. We may have multiple ISP in near future 
> but currently we have only one. 
> 
> We have ASR router to handle full routing table in future. 
> 
> Now I have only question if we have two fiber terminated on ASR then how BGP 
> will do failover or can we do loadbalancing? 
> 
> --
> Sent from my iPhone
> 
>> On May 21, 2016, at 11:49 AM, Brian Wallingford <[email protected]> wrote:
>> 
>> Still, no need for bgp in a single-upstream environment.  You can use a dual 
>> default, so long as the upstream-facing interface physically (not just 
>> logically) goes down, which will automatically remove the route.  If there 
>> is an intermediate device between the fiber drop and your router, chances 
>> are the ethernet will appear up even if connectivity is not, which will be 
>> problematic as the route will not disappear.  In that case, look into IP sla.
>> 
>> Sent from my iPad
>> 
>>> On May 20, 2016, at 10:02 PM, Satish Patel <[email protected]> wrote:
>>> 
>>> Currently we have single link but in sure if i get second fiber drop
>>> from same ISP then can i use it for loadbalacing or failover? In that
>>> case what kind of BGP attributes i need to specify?
>>> 
>>>> On Fri, May 20, 2016 at 6:06 PM, Brian Wallingford <[email protected]> 
>>>> wrote:
>>>> If you only have a single egress, there's no real advantage to taking a 
>>>> full table unless you are interested in using it as a learning tool.  By 
>>>> simply using a default, you'll save loads of memory, as well as CPU should 
>>>> you drop the connection during, e.g., maintenance.
>>>> 
>>>> Cheers,
>>>> Brian
>>>> 
>>>>> On May 20, 2016, at 5:14 PM, Satish Patel <[email protected]> wrote:
>>>>> 
>>>>> Just wonder what would be the advantage and disadvantage of running
>>>>> BGP full vs default route.
>>>>> 
>>>>> We have single ISP connection and ISP decided to just run default
>>>>> route over BGP instead full.
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