Architecture¶
Design-level articles for network engineers who have to make decisions that last several years: how to reach the cloud, which data centre fabric model to adopt, how to replace a firewall without an outage, and how to run multicast between domains.
Articles¶
- Hybrid Cloud Connectivity Design: Direct Connect, ExpressRoute, Cloud Interconnect, VPN and SD-WAN on-ramps, with redundancy and BGP design.
- Cisco ACI vs VMware NSX: what each controls, how their policy models differ, where each fits, and how they coexist.
- Firewall Migration Playbook: inventory, rule cleanup, translation, cutover, validation and rollback.
- Interdomain Multicast: PIM-SM, MSDP, anycast RP, MBGP and SSM as the simpler alternative.
- Spine-Leaf Design Rules: Oversubscription math, ECMP hashing, underlay choices, border and services leaves, super-spine scaling and failure domains.
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