- creates fewer IP subnets to configure and manage
- provides connectivity between different VLANs
- enables traffic filtering based on subnet addresses
- provides reliable connectivity to end users
- reduces the number of redundant links required
Explanation: Communication between endpoints on different access layer switches occurs through the distribution layer. The distribution layer provides a boundary between the Layer 2 domain of the access layer and the Layer 3 domain of the core. This boundary provides two key functions for the LAN. On the Layer 2 side, the distribution layer creates a boundary for Spanning Tree Protocol (STP), limiting propagation of Layer 2 faults. On the Layer 3 side, the distribution layer provides a logical point to summarize IP routing information when it enters the core layer. The summarization reduces IP route tables for easier troubleshooting and reduces protocol overhead for faster recovery from failures.
More Questions: CCNPv8 ENCOR (Version 8.0) – Network Design and Monitoring Exam