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Routing of upper layer loops in VRRP

2022-07-21 05:27:00 【51CTO】

VRRP Route of upper layer return in _ Basics c

Pictured ,PC1 and PC2 In different network segments , They arrived AR3 There are two ways to choose , Now let them arrive AR3 Load balancing , And when the AR1 and AR2 After one of the routers of hangs up , They can still arrive normally AR3.

They go to AR3 Of VRRP Load balancing is easy to configure , Respectively in AR1 and AR2 Up two VRRP process , Then a process is the main route , Another process is to back up routes . On the configuration , as follows

VRRP Route of upper layer return in _ Basics c_02

VRRP Route of upper layer return in _ Basics c_03

VRRP Route of upper layer return in _ data _04

VRRP Route of upper layer return in _ Basics c_05

So the most important thing is , Namely AR3 Route back , How to make AR3 The route when returning is the same as the route when coming , From AR1 The data came from AR1 Go back , from AR2 The data came from AR2 Go back . Many people may say that different settings should be set for each line Cost value , But it doesn't work ,cost High value line data will definitely not pass through this line ( The premise is that the other line is not connected ). So how can we make AR3 The returned data is also load balanced ？

answer ： Use routing strategies

from AR1 and AR2 First, match the routes of the two network segments , Then set the basic measure , That's the foundation cost value . Finally, import direct route .

VRRP Route of upper layer return in _ data _06