Load-balancing support
In Active–Active mode, the primary device receives all network traffic and allocates traffic to the auxiliary in a process known as load-balancing. Load-balancing support varies according to traffic type.
| Traffic type | Supported? |
|---|---|
| Normal forwarded TCP traffic | Y |
| NATed (both SNAT and virtual host) forwarded TCP traffic | Y |
| TCP traffic passing through proxy subsystem: transparent proxy, direct proxy, parent proxy and VLAN traffic | Y |
| Route mode, bridge mode, mixed mode, and multiport bridge mode traffic: TCP traffic passing through the proxy subsystem (transparent/direct/parent); forwarded TCP traffic; NATed (SNAT and virtual host) forwarded TCP traffic; HTTPS connection; VLAN traffic | Y |
| VPN | N |
| UDP | N |
| ICMP | N |
| Multicast sessions | N |
| Broadcast sessions | N |
| Scanned FTP | N |
| Traffic coming through RED devices and access points | N |
| TCP traffic for the user portal, the web admin console or Telnet console | N |
| H323 traffic sessions | N |
| Control traffic for all modules | N |
| Route mode, bridge mode, mixed mode, and multiport bridge mode traffic: VPN sessions, traffic other than TCP (UDP, ICMP, multicast, broadcast, etc.); system-generated traffic; scanned FTP traffic; traffic coming through wireless RED devices and access points; TCP traffic for the user portal, the web admin console or the CLI; H323 traffic sessions; control traffic for all modules | N |