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Can different models of the Barracuda Spam Firewall be clustered together?

  • Type: Knowledgebase
  • Date changed: 4 years ago
Solution #00001501

Scope:
All Barracuda Spam Firewall models 400 and higher, all firmware versions.

Answer:
Barracuda Spam Firewalls do not support clustering between different models. There are three reasons for this:
  1. Different models have different feature-sets. That said, a model 400 would not gain a model 600 feature-set in a cluster situation.
  2. CPU speed and memory amount vary between different models. A model 400 would not be able to process e-mail as rapidly as its model 600 counterpart, for example. As a result, latency issues would occur in situations where cluster models are ansynchronous. 
  3. The number of smtp connections and spam scanner connections is configured per model. Clustering unlike units would either force a lower end model to use too may resources, or throttle down a higher end model.
Link to This Page:
https://campus.barracuda.com/solution/50160000000GSjPAAW