Shulou(Shulou.com)06/01 Report--

1 Introduction 1.1 Project Background

XX Investment has a rare all-weather asset management platform in the industry and is committed to providing customers with asset solutions in different market environments. The company has established multi-strategy product lines including stocks, quantitative hedging, bonds, fixed increase, etc. Based on the above business, the company's network stability and reliability requirements are relatively high. At this stage, the company's network reliability is low, so it is necessary to optimize the network architecture.

Currently the company has three ISP lines, two telecommunications lines: 10M--transaction, 30M--office, and one interconnection line (unused).

Business system is mainly divided into: trading, office, market. By changing the client gateway to select a telecom line, the trader selects a 10M telecom line by setting x.253 and a 30M telecom line by setting x.254 for office and quotation.

Based on the above description, the company currently has the following hidden dangers:

1. 10M line problems, the client needs to manually change the gateway to choose another line, transaction time interruption, recovery efficiency is low.

2. 30M line has problems, the client needs to manually change the gateway to select another line, the transaction time is interrupted, and the recovery efficiency is low.

Note: If there is no internal problem in the company, the possibility of concurrent failure of two lines is high, and the same equipment at the telecommunications end.

3. Quotes source server connection quotes received through a line reliability is low.

4. The IP of the three service systems is not distinguished, which is easy to cause broadcast storms.

5. AD\Exchange is deployed on a server with greater hidden dangers. (not considered)

2 Project requirements

Based on the existing infrastructure, the business requirements are as follows:

1. Telecom-10M is used for trading main lines and Unicom lines are used for trading backup lines. Automatic switching.

2. Telecom-30M is used for office lines and Unicom lines are used for backup.

3. Client IP address differentiation, such as 192.168.1.1--64, for transactions, others for office, policy development.

It is recommended that business IPs be clearly distinguished in the future to prevent network storms and implement security policies. Divided into trading network, office network.

4. Quotes server, through multiple procedures, connect Quotes A through telecommunications line 1, connect Quotes B through Unicom line.

5. Core switch single point of failure, the initial stage can not consider redundancy, the early purchase of core switches support stacking function.

3 Project proposals

The following is a simple drawing of the network architecture of the company for early understanding.

4 Project procurement

The current equipment does not support policy routing and lacks access to connected lines, so it is necessary to purchase related equipment. In this way, the failure of any access device will not affect related services. Switch can choose Cisco and China three one of them. Switches need to support policy routing, link detection such as track, nqa, sla. It is best to confirm the function with the supplier when purchasing.

device type

equipment brand

device model

number of devices

Unit Price (W)

equipment use

remarks

switch

Cisco

C3750X-24T，IP-service

1

core switch

one out of two

switch

H3C

S5500-34C-HI

1

core switch

router

H3C

ER3200

1

0.12

connection exit

5 Project implementation

Before the specific implementation of the project, it is necessary to sort out the existing network status, mainly as follows:

1. Clean up the existing core equipment network cable leveling.

2. Clear the configuration of existing network equipment.

3. Clarify the capabilities of existing network equipment.

4. Specific implementation according to project needs.

5. Configure the new switches and routers in advance to save cutting time.

5.1 Implementation personnel 5.2 Implementation time 6 Project acceptance

Meet project needs.

verification method

verification results

Transaction main line Down, whether the client automatically switches to the link line.

Server connection quotation A\B whether to take two links

Is the office line taking the telecom 30M line?

Telecom Line Down, all switched to Unicom.

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