GS-2724 User’s Guide
117
C
H A P T E R
15
Link Aggregation
This chapter shows you how to logically aggregate physical links to form one logical, higher-
bandwidth link.
15.1 Link Aggregation Overview
Link aggregation (trunking) is the grouping of physical ports into one logical higher-capacity
link. You may want to trunk ports if for example, it is cheaper to use multiple lower-speed
links than to under-utilize a high-speed, but more costly, single-port link.
However, the more ports you aggregate then the fewer available ports you have. A trunk group
is one logical link containing multiple ports.
The beginning port of each trunk group must be physically connected to form a trunk group.
15.2 Dynamic Link Aggregation
The Switch adheres to the IEEE 802.3ad standard for static and dynamic (LACP) port
trunking.
The Switch supports the link aggregation IEEE802.3ad standard. This standard describes the
Link Aggregate Control Protocol (LACP), which is a protocol that dynamically creates and
manages trunk groups.
When you enable LACP link aggregation on a port, the port can automatically negotiate with
the ports at the remote end of a link to establish trunk groups. LACP also allows port
redundancy, that is, if an operational port fails, then one of the “standby” ports become
operational without user intervention. Please note that:
• You must connect all ports point-to-point to the same Ethernet switch and configure the
ports for LACP trunking.
• LACP only works on full-duplex links.
• All ports in the same trunk group must have the same media type, speed, duplex mode and
flow control settings.
Configure trunk groups or LACP before you connect the Ethernet switch to avoid causing
network topology loops.
Summary of Contents for GS-2724
Page 1: ...www zyxel com GS 2724 Ethernet Switch User s Guide Version 3 70 4 2007 Edition 1 ...
Page 2: ......
Page 7: ...Safety Warnings GS 2724 User s Guide 7 ...
Page 8: ...Safety Warnings GS 2724 User s Guide 8 ...
Page 22: ...Table of Contents GS 2724 User s Guide 22 ...
Page 30: ...List of Tables GS 2724 User s Guide 30 ...
Page 32: ...32 ...
Page 36: ...Chapter 1 Getting to Know Your Switch GS 2724 User s Guide 36 ...
Page 40: ...Chapter 2 Hardware Installation and Connection GS 2724 User s Guide 40 ...
Page 46: ...Chapter 3 Hardware Overview GS 2724 User s Guide 46 ...
Page 48: ...48 ...
Page 58: ...Chapter 4 The Web Configurator GS 2724 User s Guide 58 ...
Page 64: ...Chapter 5 Initial Setup Example GS 2724 User s Guide 64 ...
Page 70: ...Chapter 6 System Status and Port Statistics GS 2724 User s Guide 70 ...
Page 84: ...84 ...
Page 94: ...Chapter 8 VLAN GS 2724 User s Guide 94 Figure 36 Port Based VLAN Setup All connected ...
Page 126: ...Chapter 16 Port Authentication GS 2724 User s Guide 126 ...
Page 130: ...Chapter 17 Port Security GS 2724 User s Guide 130 ...
Page 136: ...Chapter 18 Classifier GS 2724 User s Guide 136 Figure 58 Classifier Example ...
Page 139: ...Chapter 19 Policy Rule GS 2724 User s Guide 139 Figure 59 Policy ...
Page 145: ...Chapter 20 Queuing Method GS 2724 User s Guide 145 ...
Page 146: ...Chapter 20 Queuing Method GS 2724 User s Guide 146 ...
Page 152: ...Chapter 21 VLAN Stacking GS 2724 User s Guide 152 ...
Page 166: ...166 ...
Page 183: ...Chapter 27 DHCP GS 2724 User s Guide 183 Figure 89 DHCP Relay Configuration Example ...
Page 184: ...Chapter 27 DHCP GS 2724 User s Guide 184 ...
Page 186: ...186 ...
Page 210: ...Chapter 31 Syslog GS 2724 User s Guide 210 ...
Page 224: ...Chapter 36 Routing Table GS 2724 User s Guide 224 ...
Page 228: ...228 ...
Page 262: ...Chapter 38 Introducing Commands GS 2724 User s Guide 262 ...
Page 296: ...Chapter 42 IEEE 802 1Q Tagged VLAN Commands GS 2724 User s Guide 296 ...
Page 300: ...Chapter 44 Routing Domain Command Examples GS 2724 User s Guide 300 ...
Page 304: ...304 ...
Page 312: ...Appendix B Changing a Fuse GS 2724 User s Guide 312 ...
Page 332: ...Appendix E Common Services GS 2724 User s Guide 332 ...
Page 336: ...Appendix F Legal Information GS 2724 User s Guide 336 ...
Page 348: ...Index GS 2724 User s Guide 348 ...