In one illustrative example, a router may be configured to provide a plurality of virtual private
network (VPN) instances for a plurality of VPNs associated with a plurality of IDs. Each VPN …

(65) Prior Publication Data Various embodiments are disclosed relating to the identifica US
201O/OOO8253 A1 Jan. 14, 2010 tion of virtual private network (VPN) topologies. In an …

Certain exemplary embodiments can provide a method that can comprise automatically
rendering information indicative of a cause of a failure in a Virtual Private Network (VPN) that …

The techniques described herein may enable a particular PE router configured in an EVPN
to share, rather than immediately discard, a CE router MAC address that is included in an …

BACKGROUND The Internet is a massive network of networks in which computers
communicate with each other via use of different communication protocols. The Internet …

In one embodiment, service routers may register their serviced VPNs with a service
directory/broker (SDB), and edge routers may register their attached VPNs. The SDB may …

Abstract A provider edge (“PE”) router system and a PE router system controller for hybrid
virtualization of PE router functions is disclosed herein. According to one aspect of the …

One VRF is allocated to one VPN, and a layer 3 interface is assigned to a VRF
corresponding to a VPN of a connection destination. This arrangement ensures forwarding …

Methods and apparatus to dynamically control connectivity within VPNs are disclosed. A
disclosed example route server to control connectivity within a VPN comprises a memory to …

Example scalable multi-protocol label switching (MPLS) based virtual private networks
(VPNs) and methods to implement the same are disclosed. A disclosed example spoke …