MPLS Label Edge Router

A Label Edge Router (LER) is a router found within an MPLS environment. It is also known as a PE router or a Provider Edge router. Refer to the following MPLS topology.

mpls-vpn-pe-ce-eBGP.png

The PE routers are the devices found at the edge of the MPLS network and connect directly to the Customer Edge or CE routers. The PE becomes a routing peer with the CE using a routing protocol such as OSPF, EIGRP, or BGP, but static routing can also be used. The PE router also connects directly with a P router.

Links

https://networklessons.com/mpls/mpls-labels-and-devices

Links to this page:

  • BGP Site of Origin (SoO) Community
  • MPLS - OSPF redistributed routes appear as O IA
  • MPLS - Segment Routing over MPLS
  • MPLS - Using the BGP Allow-AS in feature
  • MPLS - VPN label
  • MPLS - VPN redistributing default route from CE into BGP
  • MPLS - VPNv4 Labels are assigned per route
  • MPLS - Virtual Private Network (VPN)
  • MPLS - label
  • MPLS Customer Edge Router
  • MPLS L3 VPNs and the interaction between AS-Override and SoO
  • MPLS Label Switch Router
  • MPLS Penultimate hop popping
  • MPLS Troubleshooting
  • MPLS entropy label
  • Network Design Achieving Redundancy with PE Devices
  • Network Design Considerations Involving PE and P Routers
  • OSPF - MPLS SuperBackbone
  • OSPF Design - When to create new instance
  • OSPF sham-link
  • VRF Communication and Route Target Configuration
  • VRF capability vrf-lite command
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Tags

  • #mpls
  • #label-edge-router
  • #ler
  • #pe-router

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