Figure 322 Lan To Wan, Outbound 200 Kbps, Inbound 500 Kbps - ZyXEL Communications ZyWALL USG 300 User Manual

Chapter 28 Application Patrol
• Inbound traffic is limited to 500 kbs. The connection initiator is on the LAN so inbound
means the traffic traveling from the WAN to the LAN.

Figure 322 LAN to WAN, Outbound 200 kbps, Inbound 500 kbps

Inbound
500 kbps
Bandwidth Management Priority
• The ZyWALL gives bandwidth to higher-priority traffic first, until it reaches its
configured bandwidth rate.
• Then lower-priority traffic gets bandwidth.
• The ZyWALL uses a fairness-based (round-robin) scheduler to divide bandwidth among
traffic flows with the same priority.
• The ZyWALL automatically treats traffic with bandwidth management disabled as
priority 7 (the lowest priority).
Maximize Bandwidth Usage
Maximize bandwidth usage allows applications with maximize bandwidth usage enabled to
"borrow" any unused bandwidth on the out-going interface.
After each application gets its configured bandwidth rate, the ZyWALL uses the fairness-
based scheduler to divide any unused bandwidth on the out-going interface amongst
applications that need more bandwidth and have maximize bandwidth usage enabled.
Unused bandwidth is divided equally. Higher priority traffic does not get a larger portion of
the unused bandwidth.
Bandwidth Management Behavior
The following sections show how bandwidth management behaves with various settings. For
example, you configure DMZ to WAN policies for FTP servers A and B. Each server tries to
send 1000 kbps, but the WAN is set to a maximum outgoing speed of 1000 kbps. You
configure policy A for server A's traffic and policy B for server B's traffic.
426
Outbound
Outbound
200 kbps
200 kbps
ZyWALL USG 300 User's Guide