GNS3: VRRP and VRF in telco implementation

VRF and VRRP are common technique use in telco TCP/IP network in telecom to conect site RBS/BTS to BSC or NodeB to RNC.

NodeB and BTS usualy use static IP, point to default gateway in this case VRRP IP.

GNS3 network simulation

Logical IP design. The left side (PGW board, NWIE) is Ericsson BSC parts.

Network config I share here, vpcs here. I use c3600 router and c3725 switch.

The above network is implementation example  Abis over IP with VRF and VRRP.