As a protection measure against faults over links, BGP Auto Fast Reroute (FRR) is applicable to networks with primary and backup links. With BGP Auto FRR, traffic can be switched between two BGP peers or next hops within sub-seconds. With BGP Auto FRR, if a peer has multiple routes with the same prefix that are …
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Process of Traffic Policing In traffic policing, the Committed Access Rate (CAR) is used to control traffic. Packets are first classified according to pre-defined matching rules. Packets that conform to the specified rate limit are forwarded directly, whereas packets that exceed the specified rate limit are dropped or have their priorities re-marked before being retransmitted. …
Continue reading Principles of Traffic PolicingIn the inter-AS seamless MPLS+HVPN networking, an HVPN connection between a CSG and AGG is established, and an inter-AS seamless MPLS LSP between an AGG and MASG is established. The inter-AS seamless MPLS+HVPN networking obtains the collective advantages of the inter-AS seamless MPLS network and HVPN. Networking Requirements In Figure 1, the access and aggregation layers …
Continue reading Example for Configuring Inter-AS Seamless MPLS+HVPNFully meshed connections need to be established between IBGP peers to ensure the connectivity between IBGP peers. If there are n CX devices in an AS, n x (n-1)/2 IBGP connections need to be established. When there are a lot of IBGP peers, network resources and CPU resources are greatly consumed. Route reflection can solve the …
Continue reading BGP Route Reflector ” RR”OSPF fast convergence is an extended feature of OSPF implemented to speed up the convergence of routes. It includes the following: I-SPF Incremental SPF (I-SPF) recalculates only the routes of the changed nodes rather than all the nodes when the network topology changes. This speeds up the calculation of routes. PRC Partial Route Calculation (PRC) …
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