On a Hitachi Content Platform (HCP) G10 node, the network interface ports are assigned specific roles for optimal performance and traffic segregation. The eth2 and eth3 ports are exclusively designated for the back-end network. This network is a private, high-speed interconnect used for all internal communication between the nodes within an HCP cluster. Critical functions such as object replication, metadata synchronization, and internode storage traffic rely on this dedicated back-end connection to ensure cluster integrity and high performance without interfering with client-facing traffic. These two ports are typically bonded together to provide link aggregation and failover for redundancy.

A. eth0: This port is used for the front-end network, which handles external client data access and system management traffic, not internal back-end communication.

B. eth1: This port is also designated for the front-end network, typically bonded with eth0 for redundancy and increased bandwidth for client-facing services.

1. Hitachi Vantara. (2020). Hitachi Content Platform G10 and G11 Hardware Installation and Service Guide (MK-92HCP037-14). Page 2-10, Section: "Network port assignments for G10 nodes". The document explicitly states: "The eth2 and eth3 ports are used for the [back-end] network." and "The eth0 and eth1 ports are used for the [front-end] network."