August 2018
Beginner
462 pages
12h 36m
English
Content preview from Learning OpenStack Networking - Third Edition
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Integrating load balancers into the network
When using the HAProxy driver, load balancers are implemented in one-arm mode. In one-arm mode, the load balancer is not in the path of normal traffic to the pool members. The load balancer has a single interface for ingress and egress traffic to and from clients and pool members.
A logical diagram of a load balancer in one-arm mode can be seen here:
In the preceding diagram a load balancer is configured in one-arm mode and resides in the same subnet as the servers it is balancing traffic to.
Because a load balancer in one-arm mode is not the gateway for pool members it is sending traffic to, it ...
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