On network design of Internet Enterprise Data Center

Mainly want to analyze the current number of Internet companies as the basis for e-commerce to carry out some of the problems and challenges, as well as the current Division I in the network design for your reference and guidance, welcome you greatly criticized.

1. Data Center Network Design thinking: The biggest feature of Internet enterprises is the public network, intranet like two parallel lines, the middle of the device needs a strong lateral expansion capability, so the corresponding VDC or VRF feature, the core port or port group is zoned to the corresponding VDC or VRF

The main considerations are port density, backplane bandwidth, switching capacity, features, HA

Non-blocking wire-speed forwarding design

High scalability

Port density

High forwarding Cache

High Availability

Design ideas:

Using CSS/VSS/IRF technology to virtual two physical devices into one (landscape multi-virtual one)

Using VS/VDC technology to virtual the physical device into a convergence, the core two (vertical one virtual many)

The Tor access layer uses the 2*40g link bundle to hook up the core device, guaranteeing a 1:1 convergence ratio

Don't want to crap, straight.

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Cabinet Top ACC Stacking design: or traditional gigabit Cabinet top access, upstream line binding to 80G, stacking 20G bandwidth. This design has some problems, need local traffic priority forwarding, in order to guarantee the corresponding stability and bandwidth design of the stacking group, basically the vendor stacking group is in line with the relevant characteristics requirements, special scenarios need to be cautious.

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This article from "Wandering Monk" blog, declined reprint!

On network design of Internet Enterprise Data Center