A brief introduction to the feasibility of regional network upgrade within the company

Source: Internet
Author: User
Tags backup

The following is the author of the previous period of time to write the company a regional network upgrade feasibility scheme.

I. Demand analysis

As the company's business expansion and scale expansion, the original network can not meet the company's development needs, after various departments of the company consultation and argumentation, the leadership decided to the original network backbone lines and equipment for a large-scale upgrade.

The specific needs analysis is as follows:

(1), business needs: as an independent as network operation, with an independent autonomous region as number, has its own public network IP address, etc., can be implemented as a stand-alone as the network can operate all business.

(2), address assignment: For each user dynamic and static mode of the allocation of public network IP address.

(3), operating billing: The realization of a variety of billing verification methods combined, safe, efficient, convenient management and user-friendly billing.

(4), redundant backup: To achieve the core equipment (core routing and switch, etc.) redundant backup to avoid the core equipment single point of failure.

(5), load balance: Realize multiple ISP access link load balancing, routing optimization, traffic sharing load and avoid single line fault.

Second, the network status quo

(1), bandwidth and link status:

The original backbone topology has three link optical access: China Netcom, the CLP, Beijing Telecom, the total bandwidth is exclusive 50M, after the link quality problem, the cancellation of the Beijing Telecom 20M Link, and the introduction of the CLP part of the bandwidth to supplement, the total bandwidth is still maintained in 50M or so. The three links are connected by each border router and firewall, and then through the cisco7505 core route, the load balance and the backup of the manual strategy are realized.

(2), the main network equipment status:

A, the core layer of the main equipment: (slightly)

B, the main equipment of the convergence layer: (slightly)

C, the main access layer equipment: (slightly)

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