Welcome back to the new blog, today we will be discussing about Tier-0 A-A highavailabilty option with Stateful services enabled.
This is the option which got introduced with NSX 4.x version onwards to serve the customers who needs high throughput along with services.
Earlier to 4.x version, two deployment options were available for Tier-0 HA mentioned below:
Active- Active : Where all edges are dealing with traffic hence providing high throughput, Customer could use upto 8 Edges in ECMP mode, however the downside was if A-A highavailabilty is chosen, customer can’t use stateful services on this tier-0.
And had to rely on Tier-1 attached to Edge-Cluster for services.
Active Standby : Where only one Edge node will be dealing with traffic (ingress-egress) & other Edge Node will be standby, this was useful where Customer has requirements to confume stateful services like NAT, Gateway Firewall , IDS/IPS services etc.
Downside was to have limited throughput since only one edgenode is being used.
With this new high-availability feature customer can leverage the benefit of both of the earlier options, we will discuss & implement this in detail in this blog post.
Continue reading VMware NSX – Active-Active High Availability mode with Stateful Services
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