What is L2?

L2 typically refers to Layer 2 in the OSI model, specifically the Data Link Layer. In networking, this layer is responsible for transferring data between two directly connected nodes. Common Layer 2 technologies include Ethernet, Wi-Fi, and protocols like the Address Resolution Protocol (ARP) for mapping IP addresses to MAC addresses. Switches operate at Layer 2, using MAC addresses to forward data packets within a local network.

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What other technologies are related to L2?

L2 Competitor Technologies

L3

L3 operates at the network layer, while L2 operates at the data link layer. They are competing approaches for forwarding traffic.

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L2 Complementary Technologies

STP

STP (Spanning Tree Protocol) is used in L2 networks to prevent loops and ensure a stable topology.

MSTP

MSTP (Multiple Spanning Tree Protocol) is a version of STP used in L2 networks to prevent loops, enhancing the functionality.

RSTP

RSTP (Rapid Spanning Tree Protocol) is an improved version of STP used in L2 networks for faster convergence.

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Which job functions commonly mention L2?

Network Engineer

0.3% of all Network Engineer jobs mention L2

View 385 jobs on Sumble

Infrastructure Engineer

0.1% of all Infrastructure Engineer jobs mention L2

View 163 jobs on Sumble

Network Administrator

0.1% of all Network Administrator jobs mention L2

View 64 jobs on Sumble

Engineer

1379 Engineer jobs mention L2

View 1.4k jobs on Sumble

Engineering & R&D

1387 Engineering & R&D jobs mention L2

View 1.4k jobs on Sumble

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