The challenges:
- MPLS was the main transport for site-to-datacenter communication, but no effective backup strategy existed.
- OSPF was running across sites, while BGP was used at the datacenter edge, with little to no coordination between them.
- Route redistribution was unfiltered, causing routing loops and black holes.
- No SLA monitoring or failover mechanisms were in place.
Our solution:
- Re-architected the routing design with clear domain separation: OSPF internally, and BGP externally with multiple ISPs.
- Introduced redistribution policies using route-maps and prefix-lists to control advertised routes.
- Enabled IP SLA with object tracking for health-based failover between ISPs and MPLS.
- PBR was added to prioritize EHR and VoIP traffic through the primary MPLS link when healthy.
The results:
Within the first three months, network-related incident tickets dropped by 35%. Planned maintenance no longer meant downtime, and IT staff could clearly monitor path availability with defined thresholds.
This is exactly the scenario we simulate and prepare you for in Cisco ENARSI.
Who Should Take ENARSI?
This course is ideal for:
- Enterprise Network Engineers
- Infrastructure Administrators
- Systems Engineers
- Managed Services Specialists
If you’re targeting CCNP Enterprise certification or want to become a more capable problem-solver in real-world networks, ENARSI is built for you.
Certification Path and Continuing Education
ENARSI prepares you for the 300-410 ENARSI exam, which is one of the two required for CCNP Enterprise. It also provides 40 Continuing Education (CE) credits for certification renewal.
Why Train with Firefly?
At Firefly, our instructors are engineers first. They’ve built and repaired real networks for large enterprises across finance, healthcare, and telecom. That hands-on experience is built into every module, lab, and discussion.
Plus, Cisco Learning Credits (CLCs) are accepted when you enroll with Firefly.
