Operation Manual – Product OverviewH3C S3100 Series Ethernet Switches Chapter 4 Network Design4-2router. This enables the users in the campus to exchange information and shareresources in the scope of the education network.School buildingSever CoursewareNMSNetwork centerVideo classroom/conference roomS3100100M1000/100MS5600School buildingS3100100MS3100100MS3100100MClassroom/laboratoryAR281000M 1000M1000M 1000MEducationnetworkFigure 4-2 Network diagram for an education network using S3100 series4.3 Multi-Service Carrier VLAN SolutionNote:Only S3100-EI series Ethernet switches support this multi-service carrier VLANsolution.With development of various application technologies, enterprise users areincreasingly relying on network services. They hope the networks can offer secure,reliable leased lines, VOIP and video conference services, thus reducing theiroperating costs. Additionally, apart from simple Internet surfing, individual users expectmore abundant services from the networks, e.g., IPTV, video chatting, real-time gaming,etc. Meanwhile, construction of the NGN/3G carrier network will draw huge attention ofcarriers. If NGN/3G services can be carried on the broadband access network, thecosts of the entire network solution can be lowered dramatically.To carry such services with different QOS requirements, the broadband access networkneeds to have effective service identification and isolation capacity. VLAN is the bestservice identification and isolation technology at present, and is the basis for