What is FRR in Mpls?
Fast Reroute is a MPLS (Multiprotocol Label Switching) and IP resiliency technology to provide fast traffic recovery upon link or router failures for mission critical services. Upon any single link or node failures, it could be able to recover impacted traffic flows in the level of 50 ms.
What is a TE tunnel?
MPLS TE builds unidirectional tunnels from a source to the destination in the form of LSPs, which is then used for forwarding traffic. The point where the tunnel begins is called tunnel headend or tunnel source, and the node where the tunnel ends is called tunnel tailend or tunnel destination.
What is MPLS te hot standby?
hot-standby: Enables hot backup for the tunnel. In this mode, a backup CRLSP is established immediately after the primary CRLSP is established. When the primary CRLSP fails, MPLS TE immediately switches traffic to the backup CRLSP. In this mode, a backup CRLSP is established after the primary CRLSP fails.
What is Tilfa?
Topology-Independent Loop-Free Alternate (TI-LFA) uses segment routing to provide link protection in topologies where other fast reroute techniques cannot provide protection. The goal of TI-LFA is to reduce the packet loss that results while routers converge after a topology change due to a link failure.
What is ISIS protocol in networking?
Intermediate System to Intermediate System (IS-IS, also written ISIS) is a routing protocol designed to move information efficiently within a computer network, a group of physically connected computers or similar devices. It accomplishes this by determining the best route for data through a packet switching network.
Why is MPLS faster?
MPLS is much faster than traditional IP Routing, as it is based on the concept of the label to allow forwarding (rather switching) of packets. This type of forwarding is more efficient as it avoids overloading the CPU.
What is traffic engineering tunnel?
MPLS traffic engineering tunnels are unidirectional tunnels and not congruent. This means that if one tunnel is created to carry traffic between R2 and R6, the return tunnel from R6 to R2 is not created automatically. Reverse tunnels must also be created, but this time R6 is used as the headend and R2 as the tailend.
What is RLFA?
Remote LFA (RLFA): The use of a PQ node rather than a neighbor of the repairing node as the next hop in an LFA repair [RFC5286].
What is loop-free alternate?
A loop-free path is one that does not forward traffic back through the routing device to reach a given destination. That is, a neighbor whose shortest path to the destination traverses the routing device is not used as a backup route to that destination.