Chapter 32 Application Patrol
ZyWALL USG 300 User’s Guide
559
So server
A
gets its configured rate of 300 kbps plus 250 kbps for a total of 550
kbps. Server
B
gets its configured rate of 200 kbps plus 250 kbps for a total of
450 kbps.
Priority and Over Allotment of Bandwidth Effect
Server
A
has a configured rate that equals the total amount of available
bandwidth and a higher priority. You should regard extreme over allotment of
traffic with different priorities (as shown here) as a configuration error. Even
though the ZyWALL still attempts to let all traffic get through and not be lost,
regardless of its priority, server
B
gets almost no bandwidth with this
configuration.
Finding Out More
• See
for related information on these screens.
• See
for an example of how to set up web surfing
policies with bandwidth restrictions.
• See
DSCP Marking and Per-Hop Behavior on page 381
for a description of DSCP
marking.
32.1.3 Application Patrol Bandwidth Management Examples
Bandwidth management is very useful when applications are competing for limited
bandwidth. For example, say you have a WAN zone interface connected to an
ADSL device with a 8 Mbps downstream and 1 Mbps upstream ADSL connection.
The following sections give some simplified examples of using application patrol
policies to manage applications competing for that 1 Mbps of upstream bandwidth.
Here is an overview of what the rules need to accomplish. See the following
sections for more details.
• SIP traffic from VIP users must get through with the least possible delay
regardless of if it is an outgoing call or an incoming call. The VIP users must be
able to make and receive SIP calls no matter which interface they are connected
to.
Table 145
Maximize Bandwidth Usage Effect
POLICY
CONFIGURED RATE
MAX. B. U.
PRIORITY ACTUAL RATE
A
300 kbps
Yes
1
550 kbps
B
200 kbps
Yes
2
450 kbps
Table 146
Priority and Over Allotment of Bandwidth Effect
POLICY
CONFIGURED RATE
MAX. B. U.
PRIORITY
ACTUAL RATE
A
1000 kbps
Yes
1
999 kbps
B
1000 kbps
Yes
2
1 kbps
Summary of Contents for Unified Security Gateway ZyWALL 300
Page 2: ......
Page 30: ...Table of Contents ZyWALL USG 300 User s Guide 30 ...
Page 31: ...31 PART I User s Guide ...
Page 32: ...32 ...
Page 38: ...Chapter 1 Introducing the ZyWALL ZyWALL USG 300 User s Guide 38 ...
Page 46: ...Chapter 2 Features and Applications ZyWALL USG 300 User s Guide 46 ...
Page 64: ...Chapter 3 Web Configurator ZyWALL USG 300 User s Guide 64 ...
Page 74: ...Chapter 4 Installation Setup Wizard ZyWALL USG 300 User s Guide 74 ...
Page 116: ...Chapter 6 Configuration Basics ZyWALL USG 300 User s Guide 116 ...
Page 184: ...Chapter 7 Tutorials ZyWALL USG 300 User s Guide 184 ...
Page 221: ...221 PART II Technical Reference ...
Page 222: ...222 ...
Page 288: ...Chapter 11 Registration ZyWALL USG 300 User s Guide 288 ...
Page 378: ...Chapter 14 Trunks ZyWALL USG 300 User s Guide 378 ...
Page 394: ...Chapter 15 Policy and Static Routes ZyWALL USG 300 User s Guide 394 ...
Page 408: ...Chapter 16 Routing Protocols ZyWALL USG 300 User s Guide 408 ...
Page 428: ...Chapter 19 NAT ZyWALL USG 300 User s Guide 428 ...
Page 454: ...Chapter 23 Authentication Policy ZyWALL USG 300 User s Guide 454 ...
Page 472: ...Chapter 24 Firewall ZyWALL USG 300 User s Guide 472 ...
Page 534: ...Chapter 27 SSL User Screens ZyWALL USG 300 User s Guide 534 ...
Page 536: ...Chapter 28 SSL User Application Screens ZyWALL USG 300 User s Guide 536 ...
Page 544: ...Chapter 29 SSL User File Sharing ZyWALL USG 300 User s Guide 544 ...
Page 638: ...Chapter 35 ADP ZyWALL USG 300 User s Guide 638 Figure 448 Profiles Protocol Anomaly ...
Page 682: ...Chapter 37 Content Filter Reports ZyWALL USG 300 User s Guide 682 ...
Page 700: ...Chapter 38 Anti Spam ZyWALL USG 300 User s Guide 700 ...
Page 722: ...Chapter 39 Device HA ZyWALL USG 300 User s Guide 722 ...
Page 738: ...Chapter 40 User Group ZyWALL USG 300 User s Guide 738 ...
Page 744: ...Chapter 41 Addresses ZyWALL USG 300 User s Guide 744 ...
Page 756: ...Chapter 43 Schedules ZyWALL USG 300 User s Guide 756 ...
Page 772: ...Chapter 45 Authentication Method ZyWALL USG 300 User s Guide 772 ...
Page 794: ...Chapter 46 Certificates ZyWALL USG 300 User s Guide 794 ...
Page 806: ...Chapter 48 SSL Application ZyWALL USG 300 User s Guide 806 ...
Page 811: ...Chapter 49 Endpoint Security ZyWALL USG 300 User s Guide 811 ...
Page 866: ...Chapter 50 System ZyWALL USG 300 User s Guide 866 ...
Page 873: ...Chapter 51 Log and Report ZyWALL USG 300 User s Guide 873 ...
Page 886: ...Chapter 51 Log and Report ZyWALL USG 300 User s Guide 886 ...
Page 916: ...Chapter 54 Packet Flow Explore ZyWALL USG 300 User s Guide 916 ...
Page 918: ...Chapter 55 Reboot ZyWALL USG 300 User s Guide 918 ...
Page 920: ...Chapter 56 Shutdown ZyWALL USG 300 User s Guide 920 ...
Page 948: ...Chapter 58 Product Specifications ZyWALL USG 300 User s Guide 948 ...
Page 1014: ...Appendix A Log Descriptions ZyWALL USG 300 User s Guide 1014 ...
Page 1124: ...Appendix F Open Software Announcements ZyWALL USG 300 User s Guide 1124 ...