What kind of physical connectivity between service provider VPN PE routers when it comes to providing MPLS IP VPN soultion to enterprise customers.
is it dedicated leased line among P and PE routers or GRE tunnel connectivity with Internet conenctivity.?
Thanks in advance.
Yes, VPN Service providers' routers need not be connected to the internet to provide VPN services, the VPN service is provided over the service provider backbone with no referral to the internet unless internet access is required in addition to the VPN service.