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Zorluk: OrtaConfiguration and Change Management

A network engineering team plans to reconfigure VLAN trunking and update Spanning Tree Protocol priorities across campus core switches during an upcoming maintenance window. The lead engineer is finalizing the formal change control documentation for submission to the Change Advisory Board (CAB). Which of the following components must be included in the documentation to ensure the team can safely undo modifications if an unexpected broadcast storm occurs during implementation?

  1. A detailed rollback plan outlining step-by-step restoration procedures and quantitative failure threshold triggers.Cevap
  2. B
    An execution script designed to modify switch priorities before documenting the current baseline topology.
  3. C
    A system restoration strategy relying exclusively on differential configuration backups without keeping the last full baseline backup.
  4. D
    A TACACS+ authentication policy update intended to encrypt Layer 2 trunk frame headers during the maintenance window.

Cevap

A detailed rollback plan outlining step-by-step restoration procedures and quantitative failure threshold triggers.
In standard change management protocols, any high-impact network change submitted to a Change Advisory Board must include a robust rollback plan. This plan details precise back-out steps and specific criteria (such as packet loss or broadcast traffic thresholds) that dictate when to abort implementation and restore the known-good baseline.

Adım Adım Çözüm

1
Analyze the change management requirement in an enterprise IT environment.
Identified that modifying core network parameters (VLAN trunks and STP priorities) carries high operational risk.
Changes to STP or VLANs can cause loops or broadcast storms if misconfigured.
2
Evaluate the essential components required for Change Advisory Board (CAB) approval.
Determined that risk mitigation requires a pre-defined back-out strategy.
Without a documented rollback plan and explicit failure triggers, engineers cannot quickly recover if the change fails.

Anahtar Kavram

Change Management Rollback Planning
Tahmini Süre:1m 15s
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