3Com 3C16685 User Manual - Add Resilient Link
Configuration Pages
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configure the unit to send traps (messages) to the SNMP network
management application, if the states of the links change.
Resilient Link Pairs
To set up a resilient link pair, you need to manage the stack that both
links in the pair are connected to. The number of resilient link pairs
you can set up is only restricted by the number of ports you have in
the stack.
When you set up the resilient link pair, you need to specify the ports
that the main link and standby link are connected to.
Resilient Link Rules
Always follow these rules when setting up a resilient link pair:
■
Only media that generates a link pulse (for example 10BASE-T,
100BASE-TX, 100BASE-FX and fiber optic) can be part of a
resilient link. This means that you can use the TP ports on the
front of the Dual Speed Hub 500 and the transceiver module
ports on the rear (if fitted with modules that have the required
media).
■
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 units in the
stack).
■
Each link must not belong to more than one resilient link pair.
■
Do not enable security for ports that are part of a resilient link
pair.
If the main link fails, the standby link becomes active.
Add Resilient Link
This page is used for adding resilient links to the stack. Choose 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.