Approach to build MPLS VPN using QoS capabilities

¾ Routing protocol used to distribute VPN routing information across the provider's backbone and MPLS is used to forward VPN traffic from one VPN site to another.. ¾ Edge routers

To prove that MPLS based VPNs provided both addressing and routing separation we examined the routing table of every CE, PE, and P router.. On the CE routers we verified that

The MPLS/LDP network from the last exercise is used as a starting point and the aim is to build a VPN connection between the PE routers as well as stretch the routing to

As in the traditional IP network, IP routing protocols are used to forward the packets but, in MPLS network, label switched routers (LSRs) use label switching as the

The mechanism for MPLS routing is for the Provider Edge router to insert a “Label” in the data packet before the Network (in this case IP) header.. The Provider Routers in the

– A full mesh of IBGP sessions is required among PE-routers MPLS VPN Backbone P-router PE-router PE-router CE-router CE-router CE-router CE-router MP-BGP update IPv4 update.. MPLS

 P routers use the IGP label to forward the packet to the correct egress PE router..  Bottom label is the VPN label that is advertised

• Using routers requires me to learn routing.. • Using routers requires me