CSDS Dual MX Series (CSDS Traffic Orchestrator) and Scaled-Out SRX Series Firewalls (MNHA)
Learn about CSDS topology with dual MX Series routers and scaled-out SRX Series Firewalls in Multinode HA mode.
Figure 1 illustrates the CSDS topology with dual MX Series routers and scaled-out SRX Series Firewalls in Multinode HA (MNHA) mode. The topology ensures maximum redundancy for both MX Series and SRX Series Firewalls by making use of all nodes at the same time. It safeguards against all potential failover scenarios.

MX Series routers control traffic on both routers. You can deploy SRX Series Firewalls either in active-backup role, or in active-active role making use of both nodes at the same time. This augments the capacity of the network during normal operation. But a failure results in only one active role at a time, considering a single MNHA cluster. This topology ensure full redundancy and scaling for MX Series routers and SRX Series Firewalls.