This article compiles a comprehensive cheat‑sheet of Linux commands, ranging from basic file operations to advanced networking utilities, presented through a series of screenshots that together form a practical reference for network engineers.
This article explains the evolution of Segment Routing, its core concepts such as Segments, SIDs and Segment Lists, and how SR‑MPLS and SRv6 improve MPLS forwarding, TE, and data‑center overlay networking with UDP and load‑balancing techniques.
This article provides a comprehensive list of 54 H3C campus‑network tutorial videos covering VLAN, STP/RSTP/MSTP, link aggregation, SmartLink, RRPP, VRRP, IRF, multicast, IGMP, AAA, port access control, SSH, SNMP, LLDP, NTP and a full lab, useful for network engineers seeking practical knowledge.
This article explains the core responsibilities of communication engineers, describing the fundamentals of communication, the distinction between wired and wireless systems, and the various specialist roles such as terminal, base‑station, network‑planning, core‑network, transport, business‑product, installation, and power engineers, providing a comprehensive career overview.
This article explains QinQ technology, its encapsulation structure, operation principles, basic and flexible implementations, campus network applications, and provides configuration examples with command‑line snippets for both basic and selective QinQ deployments.
During the COVID‑19 outbreak, Ruijie network engineers rapidly deployed cloud office terminals and integrated hospital information systems across multiple Hubei hospitals, overcoming severe travel restrictions, equipment shortages, and protective challenges to ensure critical medical services continued without interruption.
This article provides a comprehensive overview of communication optical fibers, covering their construction, various coating and ribbon types, standard fiber classifications, connection technologies, loss mechanisms, splicing methods, installation precautions, and relevant technical specifications for reliable network deployment.
This article explains how network engineers can use lightweight monitoring solutions, log analysis, traffic and error tracking, and custom automation scripts to gain visibility, reduce troubleshooting time, and safely automate routine network tasks in enterprise environments.
The article examines long‑standing pain points in network operations—from industry bias and costly manual tasks to data‑center networking and interconnect challenges—while exploring how SDN and modern automation can reshape the role of network engineers for more resilient, business‑driven infrastructures.
