Lane Redundancy - 3Com CoreBuilder 7000 Operation Manual

66 C 3: E-IISP P
HAPTER ROTOCOL

LANE Redundancy

If you are going to provide LANE redundancy in your network, pay special
attention to creating alternate routes between nodes. Correct E-IISP
planning for route failover/redundancy is required for LANE redundancy
to work (for more information about planning for LANE redundancy, see
"LANE Redundancy Planning" on page 160).
One special case of LANE redundancy is LECS redundancy. In E-IISP, you
can configure a node to have multiple "real" LECS addresses. If the
switch fails to route to one address, the crankback procedure will try to
route to the next address in the list.