Which routing protocols support MPLS traffic engineering?
MPLS uses the reachability information provided by Layer 3 routing protocols and operates like a Layer 2 ATM network. With MPLS, TE capabilities are integrated into Layer 3, which can be implemented for efficient bandwidth utilization between routers in the SP network.
How are MPLS labels distributed?
LDP is a protocol that automatically generates and exchanges labels between routers. Each router will locally generate labels for its prefixes and will then advertise the label values to its neighbors. It’s a standard, based on Cisco’s proprietary TDP (Tag Distribution Protocol).
What are MPLS protocols?
Multi Protocol Label Switching (MPLS) is an IP packet routing technique that routes IP packet through paths via labels instead of looking at complex routing tables of routers. This feature helps in increasing the delivery rate of IP packets.
What is the size of an MPLS header?
4 Bytes
MPLS header (4 Bytes length).
What is MPLS architecture?
The MPLS architecture describes the mechanisms to perform label switching, which combines the benefits of packet forwarding based on Layer 2 switching with the benefits of Layer 3 routing.
What is MPLS Traffic Engineering-configurable path calculation metric metric for tunnels?
The MPLS Traffic Engineering – Configurable Path Calculation Metric for Tunnels feature enables the user to control the metric used in path calculation for traffic engineering (TE) tunnels on a per-tunnel basis.
What commands have been introduced or modified in the MPLS Traffic-Eng?
The following commands were introduced or modified: mpls traffic-eng path-selection metric, tunnel mpls traffic-eng path-selection metric. Was this Document Helpful?
What is the MPLS Traffic Engineering interarea tunnels feature?
The MPLS Traffic Engineering: Interarea Tunnels feature allows you to establish Multiprotocol Label Switching (MPLS) traffic engineering (TE) tunnels that span multiple Interior Gateway Protocol (IGP) areas and levels, removing the restriction that had required the tunnel headend and tailend routers both be in the same area.
What is the MPLS TE link metric?
When MPLS TE is configured in a network, the IGP floods two metrics for every link: the normal IGP (OSPF or IS-IS) link metric and a TE link metric. The IGP uses the IGP link metric in the normal way to compute routes for destination networks. You can specify that the path calculation for a given tunnel be based on either of the following: