Which technology directs data in high-performance networks from one node to the next based on short path labels rather than full network addresses?

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Multiple Choice

Which technology directs data in high-performance networks from one node to the next based on short path labels rather than full network addresses?

Forwarding in high-performance networks relies on short path labels to steer packets from one node to the next instead of routing decisions based on full network addresses. This approach is MPLS, Multiprotocol Label Switching. In MPLS, an edge device assigns a label to a packet and the network routers along the path (label-switching routers) use that label to determine the next hop, swapping the label as the packet travels. The collection of routers and labels creates a label-switched path, which allows for faster forwarding because decisions are made by simple label lookups rather than full destination address lookups. This also enables traffic engineering and quality-of-service features because the path can be controlled independently of the underlying IP routes. As the packet reaches the end of the path, the label is removed and normal routing resumes. The other options refer to formats or properties unrelated to label-based forwarding, so they don’t describe this mechanism.

Forwarding in high-performance networks relies on short path labels to steer packets from one node to the next instead of routing decisions based on full network addresses. This approach is MPLS, Multiprotocol Label Switching. In MPLS, an edge device assigns a label to a packet and the network routers along the path (label-switching routers) use that label to determine the next hop, swapping the label as the packet travels. The collection of routers and labels creates a label-switched path, which allows for faster forwarding because decisions are made by simple label lookups rather than full destination address lookups. This also enables traffic engineering and quality-of-service features because the path can be controlled independently of the underlying IP routes. As the packet reaches the end of the path, the label is removed and normal routing resumes. The other options refer to formats or properties unrelated to label-based forwarding, so they don’t describe this mechanism.

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