DUA1640-5AAA02Configuration Pages 7-23Resilient Link RulesAlways follow these rules when setting up a resilient link pair:n Only 10BASE-T and fiber optic ports (if the hub has a fiber optictransceiver module fitted) can be part of a resilient link.n Configure the resilient link pair at only one end of the link. In otherwords, only one stack controls each resilient link pair you set up.n Each resilient link pair can only have one main link and one standbylink (the ports used can be on different hubs in the stack).n Each link must not belong to more than one resilient link pair.n For a port that is part of a resilient link pair:n Do not disable the link pulse generation (you cannot disable thisusing the web interface or Quick Config manager).n Do not enable security for the port.If you have more than two stacks there are a number of ways you canuse resilience when linking them. Remember to connect the stackscorrectly for both links, refer to “Connecting Different Hubs and Stacksto Your Hub” on page 3-16.If the main link fails, the standby link becomes active.Adding, Deleting and Swapping LinksTo add a resilient link pair to the list, click Add. The Add Resilient Linkpage is displayed.To delete a resilient link pair from the list, click on the entry in the listand then click Delete. The resilient link pair is deleted, and the currentactive link remains enabled and the standby link is cancelled.To swap the main and standby ports for a resilient link pair in the list,click on the entry in the list and then click Swap.Add Resilient Link This page is used for adding resilient links to the stack. Choose on themain link and click Next, and then choose the standby link and clickNext. The resilient link pair appear in the list on the Resilient Linkspage.
