Static link aggregation 33Figure 6Switch-to-server link aggregation configurationClient/server link aggregation configurationFigure 7 "Client/Server link aggregation configuration" (page 34) shows anexample of how link aggregation can be used in a client/server configuration.In this example, both servers are connected directly to switch S1. FS2 isconnected through a trunk configuration (T1).The switch-to-switch connections are through trunks (T2, T3, T4, and T5).Clients accessing data from the servers (FS1 and FS2) are provided withmaximized bandwidth through trunks T1, T2, T3, T4, and T5. On the ERS8300, trunk members (the ports making up each trunk) do not have to beconsecutive switch ports; they can be selected across different modules formodule redundancy.With spanning tree enabled and trunks T2 and T3 in the same spanningtree group, one of the trunks (T2 or T3) acts as a redundant (backup)trunk to switch S2, and STP blocks one of the trunks. With spanning treedisabled, neither trunk T2 nor trunk T3 is blocked; they must be configuredinto separate STGs to avoid a loop in the network.Nortel Ethernet Routing Switch 8300Configuration — VLANs, Spanning Tree, and Static Link Aggregation using Device ManagerNN46200-510 03.01 Standard4.0 27 August 2007Copyright © 2005-2007, Nortel Networks.
