Ipv6 addressing for Core network

[Vikas Sharma <vikassharmas () gmail com>]

Hi,

I am looking for the recommendation for core interfaces IP addressing schema
for Ipv6. Some different views are (PE- P - PE, point to point link) as
below -

1-  Use Public Ipv6 with /122 and do not advertise to Internet
2-  Use Public Ipv6 with /127 and do not advertise to Internet
3-  Use Unique local ipv6 address
4- Use Public Ipv6 with /64

Also I am interested to understand the impact on TCAM ...

Regards,
Vikas