Arista Foundations case studies
Arista Foundations · Put your knowledge to work in context.
The Arista Foundations exam is an independent, third-party practice assessment for networking professionals who want to validate foundational knowledge of Arista's cloud networking portfolio. It is aimed at network engineers, data center operators, and automation-minded administrators who are starting with Arista technologies or transitioning from another vendor's switching and routing platforms. The exam is organized around four equally weighted domains: EOS and Cloud Networking Fundamentals; Data Center Leaf-Spine Architectures; CloudVision Automation and Visibility; and Routing, Observability, and Security Solutions. Each domain accounts for 25 percent of the content, so no single topic can be skipped. The Arista Foundations case studies are 5 cases and about 3,178 words.
1MLAG Host Dual-Homing on a Leaf Pair
A two-tier leaf-spine fabric uses MLAG on every leaf pair. A storage cluster of 24 nodes is dual-homed to leaf-01 and leaf-02, which are MLAG peers with a peer-link on Ethernet49/50 and a peer-keepalive over a routed management path.
672 words, about 3 min2EVPN Route-Type 2 Scale in a Multi-Pod Fabric
A service provider runs an Arista EVPN-VXLAN fabric with two pods connected by a super-spine. Each pod has 48 leaves and 4 spines; there are 6,000 tenant MAC addresses per pod and 1,200 /32 host routes.
684 words, about 3 min3Anycast Gateway and Silent Host Detection
A retail company runs an EVPN-VXLAN fabric with distributed anycast gateways. Each leaf has the same gateway IP and MAC for VLAN 100 (point-of-sale) and VLAN 200 (guest Wi-Fi).
691 words, about 3 min4Observability Gap After a Microburst
A financial exchange runs Arista switches with streaming telemetry to CloudVision and a separate gRPC collector. A trading application reports intermittent 200-400 ms stalls during market open.
549 words, about 3 min5Routing Policy and Prefix Leak Between Tenants
A managed services provider runs a shared Arista fabric with per-tenant VRFs. Tenant A advertises 400 prefixes into the fabric via eBGP from a customer edge router.
582 words, about 3 min