Definition
Label edge router handles labeling and delabeling of data packets as traffic enters and exits the network. It is usually placed in the boundaries of an MPLS.
Label Edge Router
- Traffic engineering: Label Edge Routers (LERs) facilitate traffic engineering, enabling network operators to optimize network resources and dictate data paths.
- VPNs for enterprises: LERs enable secure MPLS-based Virtual Private Networks (VPNs) for enterprises.
- Quality of Service (QoS) management: LERs prioritize traffic for Quality of Service (QoS) management.
Risk of Label Edge Router
- Configuration complexity: LERs require intricate setup and management, risking misconfiguration.
- Single Points of failure: LERs at MPLS network edges are critical and may cause network disruptions if not redundant.
- Scalability challenges: Growing network demands may strain LERs’ capacity and performance.