Application viewpoint: application of a gigabit route Switch

At present, China's route switches are developing rapidly and widely used in various fields, especially in telecom operators. The BDCOM S3400 series route switch is a new generation of high-performance L3 Ethernet Switching Device developed by Boda communication. The BDCOM S3400 series route switches not only provide enterprises with high-performance, multi-layered solutions, but also provide powerful support for the transition from service providers to data networks.

The BDCOM S3400 series route switches provide three-layer hardware line rate switching, which provides enterprises with a high-performance, multi-layered solution and is an ideal choice for building a high-speed enterprise network remote exchange platform. It is also suitable for ISP and service providers, especially for some large operators, which will be able to enhance their competitiveness in the IP market. Broadband data access of a certain operator in Shanghai Telecom's residential area, is a typical application.

The telecom operator allocates an optical fiber for each access zone and connects it through a network-managed L2 route switch in the center of the zone. a pop point is formed in several communities, the figure is a POP point setting) and then connects to the telecom service center through a high-end multi-layer routing switch. The telecom service center has a network management workstation to manage all the network equipment, the Mail server, DHCP server, and DNS server provide services for users in the community to access the Internet, send and receive emails, and so on. Another exit of the POP point is connected to the Internet on the Data backbone network through BAS.

In the network design and connection, the BDCOM-S3448/S3424 aggregation routing switch is used to connect the core layer switching and core multi-layer routing switch, connect the optical fiber to the routing switch of each residential center through a rack-mounted Optical Fiber transceiver or optical port module. BDCOM-S3448/S3424 can provide complete security authentication and QoS functions, fully meet the flexible network control.

According to the different types and requirements of the Community, Boda set different application solutions, selection of BDCOM-S2000 series Routing Switch access POP Point Convergence layer-3 routing switch BDCOM-S3448/S3424, for some small and medium residential area, using BDCOM-S2224/S2226 through the optical fiber converter, access POP point; for some new residential area or commercial area, can use BDCOM-S2226F configuration optical port module directly connected to the optical fiber access POP point.

For small and medium-sized residential areas, you can use BDCOM-S2008/S2116/2026 to connect to 5 types of twisted pair wires or multi-mode optical fiber modules/Optical Fiber converters) access the residential center switch; for new residential area or business area can use BDCOM-S2026 802.1x authentication and other functions through 5 kinds of twisted pair wires or multi-mode optical fiber modules/fiber optic converter) access the residential center routing switch. In terms of bandwidth access for business applications, the uplink bandwidth of FTTB + LAN Ethernet user corridor L2 Ethernet route switch Boda BDCOM S2000 series switches can reach 100 Mbit/s or N × FE. to save the network bandwidth from the access layer to the aggregation layer and control the bandwidth of the port.

For IPTV services, the Boda routing switch has a complete QOS policy: Head Of Line prevents congestion; four sending queues on each port map eight priorities Of 802.1p; WRED, WFQ, SP and FIFO queue scheduling algorithm, easy to meet the requirements of IPTV, the multicast protocol performance is also very good IGMP Snooping automatic monitoring of multicast packets; IGMP v1/v2/v3; PIM-SM, OLINK & PIM-DM; DVMRP distance vector Multicast Routing Protocol); GMRP multicast Dynamic Registration Protocol), in terms of security characteristics and network management, the Boda route switch also maintains an outstanding standard. All the performance indicators meet the various requirements of IPTV launch, and most likely meet the needs of IPTV.