Understand the certification
300-615 DCIT（Troubleshooting Cisco Data Center Infrastructure）是 CCNP Data Center 的故障排除专项，60 题 / 90 分钟。和 DCID（设计）互补，DCIT 专注于"东西坏了怎么修"。
考试覆盖 Nexus 交换机故障排除（vPC peer-link 故障、HSRP/VRRP 切换异常）、VXLAN EVPN 排障（BGP EVPN 邻居建立失败、VTEP 不通）、ACI 故障排除（Fault/Health Score 分析、EPG 通信异常）、SAN 存储网络排障（FC zone 配置错误、FLOGI 失败）。
约 40% 的题以 show 命令输出为题干 — 给你一段 show vpc、show nve peers 或 show system internal 的输出，问你故障原因和修复方法。
Exam at a glance
- Exam code
- 300-615
- Provider
- Cisco
- Format
- Single choice / Multiple select
- Language
- English
- Validity
- 3 years
- Exam fee
- $330
Skills in focus
Learning outcomes
- Prepare for the Cisco 300-615 DCIT exam
- Improve your ability to isolate and fix Cisco data center issues
- Work more confidently with Nexus, UCS, SAN, and ACI troubleshooting tasks
- Improve your fit for data center support and operations roles
Who this is for
- Data center engineers preparing for Cisco 300-615 DCIT
- Support engineers who troubleshoot Cisco infrastructure
- IT professionals who want stronger troubleshooting skills in Cisco data centers
- Students and practitioners moving toward CCNP Data Center
Before you start
- Basic networking knowledge is required
- Hands-on experience with data center infrastructure is recommended
- Associate-level Cisco knowledge will help with the terminology and troubleshooting flow
Your learning path
5 chapters
Plan your preparation
- Learning hours
- 30h
- With relevant experience
- 4-6 weeks
- Starting from scratch
- 10-14 weeks
- Daily study
- 1-2h
Included in your preparation
- 5 structured chapters focused on the exam topics
- 109 practice questions with explanations
- Timed mock exam practice
- A troubleshooting-first study path instead of a generic revision set
- Coverage of Nexus, UCS, SAN, and ACI troubleshooting
1. 第一阶段：Nexus 平台排障基础（2 周）
vPC 排障（peer-link down、type-1 consistency check 失败、orphan port 处理）。NX-OS 的 show tech-support、show system internal、ethanalyzer 等诊断工具。
2. 第二阶段：VXLAN EVPN + ACI 排障（2-3 周）
VXLAN EVPN 的 BGP EVPN neighbor 建立失败排查（show nve peers、show bgp l2vpn evpn）。ACI 的 Fault 和 Health Score 系统、moquery 命令、APIC 日志分析。
3. 第三阶段：SAN 排障 + 模考（1-2 周）
FC SAN 的 FLOGI/PLOGI 过程、zone 配置错误排查、MDS 交换机的 show flogi database。做 2 套模考，训练从 show 命令输出快速定位故障点的能力。
Career value
DC 故障排除是一线运维的核心技能，DCIT 的实用性在 CCNP DC 所有专项中排第一。银行和电信的 DC 团队在招人时经常把 DCIT 作为加分项。
适合考的人：日常工作就是在 Nexus 环境里排障的 DC 工程师，有 vPC 和 VXLAN 实操经验。
不适合考的人：没有 Nexus 实操经验的人 — 考试全是 show 命令输出分析，没实操背景根本看不懂。
- 澳洲
- AUD 120,000 – 165,000
- 美国
- USD 105,000 – 150,000
- 新加坡
- SGD 85,000 – 135,000
Preparation tips
Common mistakes
- **忽略 SAN 排障** — 很多人只准备 LAN 部分，但 FC SAN 占约 15-20% 权重，MDS 的 show flogi database 和 zone 配置排错必考。
- **不熟悉 NX-OS 诊断命令** — show system internal 系列命令在真考中出现频率很高，不是日常用的 show interface 那些。
- **ACI Fault Code 不认识** — ACI 的 F 开头故障码（如 F0467 表示 EPG 无端口绑定）要能快速判断故障类型。
Before you register
How difficult is the 300-615 exam?
The exam is 120 minutes long. A systematic preparation period of 3-6 months is recommended. Through the systematic practice in this course, you can effectively improve your pass rate.
How much does the exam cost?
The 300-615 exam costs $330 USD. The certification is valid for 3 years.
Learner experiences
Loading reviews…
日常工作就是排 Nexus 的障，考起来相对轻松。最意外的是 SAN 排障题比预期多 — FC zone 和 FLOGI 至少出了 4 题。如果没碰过 MDS 交换机，这部分要专门补。
S. Li
DC 工程师 @ 电信运营商 · 805/1000 · 5 weeks
Done reading? Next steps
- SkillPractise Cisco DCIT by exam domainQuestions are grouped by the official exam domains, so you can see which domain still needs work.Open the question bank →
- SkillCisco DCIT learning pathWork through the exam scope chapter by chapter, then come back to the questions.See the learning path →
- ExpressionExplain it in an interviewRun a mock interview for a role that uses this certification and turn what you studied into project stories.Practise an interview →
Start with the first chapter.
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