Chapter Unicom network access engineering and technical proposals
First, the network proposal
(A) the goal of building the network
1.Provide a variety of rates, a variety of distance, all the bandwidth size of the integrated ISP access;
2.After the completion of all the base stations, network access to network coverage, providing 2.4 K, 4.8K, 9.6K, 19.2K, 32K, 48K, N * 64K (N = 1-31), 10M/100M Ethernet access circuit quality;
3.Broadband access networks have a certain capacity for ATM networks, FR extend the network to do a variety of access, and provide the data bearer service;
4.Expansion of the network has a certain capacity, to facilitate later opening of a variety of value-added services;
5.Network has the hierarchical network management function, the opening of a variety of business, monitoring, alarm, recording done on a unified network management;
(B) of the network topology
(C) program instructions
1. Unicom users of the network access devices access the local base station MP9400 node, through the optical fiber trunk network, China Unicom Center MP9400 access node, and then Unicom backbone network access centers to achieve access to INTERNET network.Center node set MP9400 network management system.
2. Network Management Center uses 1 Maipu MP9400 node equipment, distribution network routing card and relay card slot, slot card, 2M of each base station network port for MP9400, V.35-G.703 Converter Meetingaccess and network management all point to the slot.
3. Only with the base station network MP9400 1E1 network cards, access cards with MP128 or MPHDSL 6KM for complete range of user router to achieve ISP network access.Not equipped with network management, the use of unattended manner.
4. P9400 built-in channel of high-end routers, not only for ISP access, voice, billing and other internal network use function can also be used for ATM, FR and access data network extension.These are no additional investment in equipment, ISP access network can be in the building will require the same time get a lot of value-added features.
5. MP9400 WINDOWS based graphical network management system, click, without specialized knowledge, specialized learning, the system prompts to complete network management, monitoring and maintenance.
6. MP9400 large number of access cards are available for later expansion.
7. Community ISP access.Access Ru Maipu MP5024 floor HUB interface module 24 with optical switches, optical access through the center of the Ethernet, to achieve high-speed access to ISP.
8. Group 2M users access through fiber optic transmission MP9400, MP9400 again by receiving the center contact, to achieve the Group to allocate bandwidth as needed to complete the business ISP access, voice, image, internal data exchange functions.
9. Fragmented user MP128 or MPHDSL high MODEM, MP5024 MP9400 switches, base stations, Ethernet access local contacts, to achieve integrated access.
Second, the access network extensions
(A) provide high-quality digital data circuit
1.Transparency can be achieved within its jurisdiction the circuit (DDN), providing point to point, a multipoint data, image, voice bearer service circuit.Provides ATM, frame relay network extension and access links.
2.Provide a virtual private network (VPN).
3.2M N * 64kps provide semi-permanent connection to the digital circuit.
(B) bandwidth management
1.Provide the following rates, the transparent TDM circuit connection, N * 64Kbps (N = 1-31)
2.Support N * 64Kbps (N = 1-31) Frame Relay PVC connection rate
3.Support for X.50, X.58, HCM and other sub-rate multiplexing protocol
(C) of the network diagram
Customer Case Studies Chapter
Unicom Large user access proposals
Basic network diagram
Programme Description
1. Unicom engine room from the fiber to the client, through the Optical access MP9400's E1.
2. End of the engine room is configured on the relay node MP9400 exchange card slot, enabling reuse in a 2M on multiple user access.As 3,4,5 items.
3. Over distribution of MP9400 serial port card rate and the corresponding N * 64K time slot to the router MP2600, or directly provide a E1 trunk to the MP2600 a CE1 module.
4. To some of Optical time slot in the access bandwidth of 2M by MP9400 PBX port access of users to achieve telephone relay.
5. To some of Optical access bandwidth of 2M slot port access through the MP9400 User's cable television equipment.
6. MP2600 module on the IP phone IP phone access, remote users can dial the IP phone MP2600 achieve free long distance calls; also be transferred to the local PSTN, access to local call.
7. In this way can be achieved under the broadband integrated access to local users.
Actual network diagram
Programme Description
1. Fiber to the client, the user may need to do extension.Node of each cell received by the client 2M Meeting room, which room of the relay node to the backbone, that China Unicom's ATM room.
2. The client room to configure the relay node MP9400 exchange card slot, enabling reuse in a 2M on multiple user access.
3. Each of the tandem cell, mainly through cross-2M achieved within the time slot.According to actual need to allocate appropriate bandwidth for each cell to achieve cable TV, telephone, data, integrated access.
4. Each cell except the user access outside of the region (through the LAN switch connected to the MP2642's LAN port), but also by MP9400 on the baseband 128MODEM card, access to remote users (the user can directly access the backbone network orwith access through the local router).