Exam 23: Multiprotocol Label Switching

The ability to define routes dynamically,plan resource commitments on the basis of known demand,and optimize network utilization is referred to as ________.

A key component of an MPLS network is the use of ________ to optimize and manage the load.

MPLS is intended to provide connection-oriented QoS with features similar to those found in ________.

A routing algorithm develops information that can be used in determining how to handle packets with different service needs.

The objective of ________ is to support link layer interfaces,such as ATM and Ethernet,for providing VPNs for an MPLS-enabled IP packet switched network.

One of the most powerful features of MPLS is label stacking.

________ define a flow of packets between two endpoints or,in the case of multicast,between a source endpoint and a multicast group of destination endpoints.

A routing algorithm that takes into account the traffic requirements of various flows and that takes into account the resources available along various hops and through various nodes is referred to as a ________ algorithm.

Hop-by-hop routing does not readily support traffic engineering or policy routing.

Traffic designated as VPN traffic can only go from a VPN source to a destination in the same VPN.

For each forwarding equivalence class a specific path through the network of LSRs is defined.This is called a ________ path.

An ________ represents a group of packets that share the same transport requirements,receive the same treatment en route to the destination and follow the same path and receive the same QoS treatment at each hop.

The essence of MPLS functionality is that traffic is grouped into ________.

In the early 1990s the telecom industry made a substantial investment in ________ as the network backbone technology of the future.

Protocols that communicate which label goes with which FEC are called ________.

MPLS imposes a connectionless framework on an IP-based internet and thus provides the foundation for sophisticated and reliable QoS traffic contracts.

________ messages are used to create,change,and delete label mappings for FECs.

When computing paths for LSPs,________ considers the topology of the network, the attributes of the individual links between LSRs,and the attributes of existing LSPs.

________ have as their fundamental purpose dynamically finding a route through an internet between any source and any destination.

________ focuses on the architecture and techniques for constraint-based path computation.