[c-nsp] Peering with AS larger than 65535

[Daniel Suchy]

On 30.4.2014 03:06, Jeremy Bresley wrote:
> On 4/29/2014 7:11 PM, CiscoNSP List wrote:
>> Have an oldish 7200-G2 in the lab that I need to setup with test
>> peering with an AS larger than 65535
>> Is there any work-around to this? (Aside from IOS upgrade)
>>
> If you don't have IOS support, it's not going to work.
> 
> http://tools.cisco.com/ITDIT/CFN/jsp/by-feature-technology.jsp
> 
> Feature you're looking for is "BGP Support for 4-byte ASN"

For peering session with any ASN > 65535 you can use "remote-as 23456"
as workaround on any hardware. Of course, there're reduced filtering
capabilities.

4-byte ASN support is required when your own ASN is > 65535.


With regards,
Daniel