ZyWALL USG 50-H User’s Guide
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H A P T E R
9
Trunks
9.1 Overview
Use trunks for WAN traffic load balancing to increase overall network throughput and
reliability. Load balancing divides traffic loads between multiple interfaces. This allows you
to improve quality of service and maximize bandwidth utilization for multiple ISP links.
Maybe you have two Internet connections with different bandwidths. You could set up a trunk
that uses spillover or weighted round robin load balancing so time-sensitive traffic (like video)
usually goes through the higher-bandwidth interface. For other traffic, you might want to use
least load first load balancing to even out the distribution of the traffic load.
Suppose ISP A has better connections to Europe while ISP B has better connections to
Australia. You could use policy routes and trunks to have traffic for your European branch
office primarily use ISP A and traffic for your Australian branch office primarily use ISP B.
Or maybe one of the ZyWALL's interfaces is connected to an ISP that is also your Voice over
IP (VoIP) service provider. You can use policy routing to send the VoIP traffic through a trunk
with the interface connected to the VoIP service provider set to active and another interface
(connected to another ISP) set to passive. This way VoIP traffic goes through the interface
connected to the VoIP service provider whenever the interface’s connection is up.
9.1.1 What You Can Do in the Trunk Screens
• Use the
Trunk
summary screen (
) to configure link sticking and
view the list of configured trunks and which load balancing algorithm each trunk uses.
• Use the
Trunk Edit
screen (
) to configure which interfaces
belong to each trunk and the load balancing algorithm each trunk uses.
9.1.2 What you Need to Know About Trunks
• Add WAN interfaces to trunks to have multiple connections share the traffic load.
• If one WAN interface’s connection goes down, the ZyWALL sends traffic through
another member of the trunk.
• For example, you connect one WAN interface to one ISP and connect a second WAN
interface to a second ISP. The ZyWALL balances the WAN traffic load between the
connections. If one interface's connection goes down, the ZyWALL can automatically
send its traffic through another interface.
You can also use trunks with policy routing to send specific traffic types through the best
WAN interface for that type of traffic.
Содержание ZyWall USG 50-H Series
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Страница 10: ...Safety Warnings ZyWALL USG 50 H User s Guide 10...
Страница 28: ...Table of Contents ZyWALL USG 50 H User s Guide 28...
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Страница 34: ...Chapter 1 Introducing the ZyWALL ZyWALL USG 50 H User s Guide 34...
Страница 40: ...Chapter 2 Features and Applications ZyWALL USG 50 H User s Guide 40...
Страница 92: ...Chapter 5 Configuration Basics ZyWALL USG 50 H User s Guide 92...
Страница 130: ...Chapter 6 Tutorials ZyWALL USG 50 H User s Guide 130...
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Страница 156: ...Chapter 8 Interface ZyWALL USG 50 H User s Guide 156 Figure 128 Network Interface Ethernet Edit wan2...
Страница 157: ...Chapter 8 Interface ZyWALL USG 50 H User s Guide 157 Figure 129 Network Interface Ethernet Edit lan1...
Страница 208: ...Chapter 8 Interface ZyWALL USG 50 H User s Guide 208 Figure 161 Network Interface Bridge Add...
Страница 224: ...Chapter 9 Trunks ZyWALL USG 50 H User s Guide 224...
Страница 250: ...Chapter 12 Zones ZyWALL USG 50 H User s Guide 250...
Страница 280: ...Chapter 16 ALG ZyWALL USG 50 H User s Guide 280...
Страница 286: ...Chapter 17 IP MAC Binding ZyWALL USG 50 H User s Guide 286...
Страница 287: ...287 PART III Firewall Firewall 289...
Страница 288: ...288...
Страница 304: ...Chapter 18 Firewall ZyWALL USG 50 H User s Guide 304...
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Страница 313: ...Chapter 19 IPSec VPN ZyWALL USG 50 H User s Guide 313 Figure 238 VPN IPSec VPN VPN Connection Edit IKE...
Страница 356: ...Chapter 21 SSL User Screens ZyWALL USG 50 H User s Guide 356...
Страница 358: ...Chapter 22 SSL User Application Screens ZyWALL USG 50 H User s Guide 358...
Страница 368: ...Chapter 24 L2TP VPN ZyWALL USG 50 H User s Guide 368...
Страница 394: ...Chapter 25 L2TP VPN Example ZyWALL USG 50 H User s Guide 394...
Страница 395: ...395 PART V Application Patrol Application Patrol BWM 397...
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Страница 421: ...421 PART VI Anti X ADP 423...
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Страница 429: ...Chapter 27 ADP ZyWALL USG 50 H User s Guide 429 Figure 359 Profiles Traffic Anomaly...
Страница 432: ...Chapter 27 ADP ZyWALL USG 50 H User s Guide 432 Figure 360 Profiles Protocol Anomaly...
Страница 440: ...Chapter 27 ADP ZyWALL USG 50 H User s Guide 440...
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Страница 462: ...Chapter 29 Addresses ZyWALL USG 50 H User s Guide 462...
Страница 474: ...Chapter 31 Schedules ZyWALL USG 50 H User s Guide 474...
Страница 484: ...Chapter 32 AAA Server ZyWALL USG 50 H User s Guide 484...
Страница 506: ...Chapter 34 Certificates ZyWALL USG 50 H User s Guide 506...
Страница 510: ...Chapter 35 SSL Application ZyWALL USG 50 H User s Guide 510...
Страница 511: ...511 PART VIII System System 513...
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Страница 568: ...Chapter 38 Logs ZyWALL USG 50 H User s Guide 568 Figure 464 Maintenance Log Log Setting Edit System Log...
Страница 584: ...Chapter 40 Diagnostics ZyWALL USG 50 H User s Guide 584...
Страница 586: ...Chapter 41 Reboot ZyWALL USG 50 H User s Guide 586...
Страница 596: ...Chapter 43 Product Specifications ZyWALL USG 50 H User s Guide 596...
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Страница 636: ...Appendix A Log Descriptions ZyWALL USG 50 H User s Guide 636...
Страница 640: ...Appendix B Common Services ZyWALL USG 50 H User s Guide 640...
Страница 646: ...Appendix C Importing Certificates ZyWALL USG 50 H User s Guide 646...