JN0-336: Security, Specialist (JNCIS-SEC)

By Juniper · Question Mode

QuestionQ37

High Availability (HA) Clustering

You are on the security operations team responsible only for firewall management. Your data center contains two SRX chassis clusters operating on VLAN 1042. The network team reports seeing the same MAC address from reth0 on both chassis clusters.

Why does this occur?

Explanation

An SRX reth interface has a virtual MAC address calculated from its chassis-cluster ID and reth interface identity. Two separate clusters using the same cluster ID therefore generate the same MAC address for reth0, creating the duplicate MAC observed on the shared VLAN.

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