Which Aruba CX campus switch series is optimized for high-density Layer 3 routing and stacking?

The Aruba CX 6300 Switch Series is specifically designed for enterprise campus access, aggregation, and core deployments. It features the Aruba Virtual Stacking Framework (VSF), which allows up to 10 switches to be stacked and managed as a single entity, providing high-density port connectivity. This series also offers a comprehensive Layer 3 feature set, including dynamic routing protocols like OSPF and BGP, as well as VRF-Lite, making it optimized for deployments requiring scalable, high-performance Layer 3 routing in a stacked configuration.

A. Aruba CX 6200: While the 6200 series supports VSF stacking, it is an entry-level access switch with more basic Layer 3 features, not optimized for high-density routing.
B. Aruba CX 4100i: This is a ruggedized switch series for IoT and harsh environments that supports only static routing and does not support VSF stacking.
D. Aruba CX 10000: This is a data center-specific Distributed Services Switch, not a campus switch, and it does not support VSF stacking.

1. Aruba CX 6300 Switch Series Datasheet: "The Aruba CX 6300 Switch Series is a modern, flexible, and intelligent family of stackable switches ideal for enterprise network access, aggregation, and core... High performance stacking with Aruba Virtual Stacking Framework (VSF) for stacking of up to 10 switches... Comprehensive Layer 2 and Layer 3 feature set includes BGP, OSPF, VRF, and IPv6." (Page 1, "Product overview" and "Product highlights" sections).

2. Aruba CX 6200 Switch Series Datasheet: "The Aruba CX 6200 Switch Series is a family of stackable access switches... Supports static routing and OSPF." (Page 1, "Product overview" and "Key features" sections). This highlights its role as an access switch with less comprehensive L3 features compared to the 6300.

3. Aruba CX 4100i Switch Series Datasheet: "The Aruba CX 4100i Switch Series is a family of ruggedized Ethernet switches... Convenient built-in wire-speed Layer 2 switching with static routing support." (Page 1, "Product overview" section). The datasheet confirms the lack of VSF stacking and advanced routing.

4. Aruba CX 10000 Series Switch with Pensando Datasheet: "The Aruba CX 10000 Series Switch with Pensando is a new category of data center switch..." (Page 1, "Product overview" section). This clearly positions it outside the campus switch category specified in the question.