3Com 2226 PWR User Guide - Page 39

Configuring Link Aggregation 39 The Switch does not support the Link Aggregation Control Protocol (LACP), which is specified in IEEE 802.3ad. Trunk Membership The Switch has four pre-defined trunks, each of which can support up to eight ports. Table 11 lists the possible membership groups for each trunk. Table 11 Port Groups and Members Port Group AL1 AL2 AL3 AL4 Ports Ports 1-4, 13-16 Ports 5-8, 17-20 Ports 9-12, 21-24 Ports 25 and 26 (RJ-45 ports only) These four port groups correspond to the four separate physical connector blocks on the front panel of the Switch. You cannot trunk ports that belong to different port groups. A trunk can consist of either 10/100 ports or 10/100/1000 ports (fixed ports 25 and 26). It is not possible to have a trunk containing a mixture of 10/100 and 10/100/1000 ports. Adding port 25 or 26 to a trunk containing 10/100 ports will result in an error. A trunk created using ports 25 and 26 can only use the fixed RJ45 10/100/1000 ports. SFP ports cannot be aggregated. If a port is a member of an aggregated link (or trunk), you will not be able to configure its individual port settings. All member ports of an aggregated link will have the same settings, and you can configure these by clicking the AL link on the Port Configuration screen. See "Configuring Trunk Settings" on page 40. Adding Ports to a Trunk To add ports to a trunk: 1 On the menu, click Link Aggregation. The Link Aggregation screen appears. Figure 18 Link Aggregation Screen 2 Add ports to a trunk by selecting the option buttons for the ports. For example, if you want to add ports 1 to 4 to Trunk 1, click the option buttons under ports 01 to 04 that are on the same row as Trunk 1. Each trunk must not have more than eight member ports. 3 Click Apply.