3Com 3C16405 User Manual - page 111
DUA1640-5AAA02
Configuration Pages
7-23
Resilient Link Rules
Always follow these rules when setting up a resilient link pair:
■
Only 10BASE-T and fiber optic ports (if the hub has a fiber optic
transceiver module fitted) can be part of a resilient link.
■
Configure the resilient link pair at only one end of the link. In other
words, only one stack controls each resilient link pair you set up.
■
Each resilient link pair can only have one main link and one standby
link (the ports used can be on different hubs in the stack).
■
Each link must not belong to more than one resilient link pair.
■
For a port that is part of a resilient link pair:
■
Do not disable the link pulse generation (you cannot disable this
using the web interface or Quick Config manager).
■
Do not enable security for the port.
If you have more than two stacks there are a number of ways you can
use resilience when linking them. Remember to connect the stacks
correctly for both links, refer to “Connecting Different Hubs and Stacks
.
If the main link fails, the standby link becomes active.
Adding, Deleting and Swapping Links
To add a resilient link pair to the list, click
Add
. The Add Resilient Link
page is displayed.
To delete a resilient link pair from the list, click on the entry in the list
and then click
Delete
. The resilient link pair is deleted, and the current
active 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 the
main link and click
Next
, and then choose the standby link and click
Next
. The resilient link pair appear in the list on the Resilient Links
page.