
1 8665 Smart Router Overview
1.5.2
Line Unit Redundancy
Ethernet Link Protection (ELP) or [IEEE 802.1AX] Ethernet Link Aggregation (LAG) are applied
for protecting Ethernet physical interfaces. For more information see
8600 Smart Routers Ethernet
Con
fi
guration Guide
.
1.5.3
Switch Unit Redundancy
8665 Smart Router provides two slots for the switch units. With one switch unit the network element
is not redundant in terms of traf
fi
c switching. With two switch units the network element is fully
redundant on the data and control plane switching. Also traf
fi
c is load shared to both switch units to
enhance the QoS behavior and reduce switchover time in case of failure.
1.5.4
Redundancy Terminology
The following terminology is used in connection with redundancy.
Static terms:
•
Working
refers to the card with the higher slot number.
•
Protecting
refers to the card with the lower slot number.
Dynamic terms:
•
Active
refers to the card or interface actually doing its task.
•
Passive
refers to the card or interface that is not currently in performance.
8600 Smart Routers
76.8670-40128B
8665 Smart Router FP7.0 Reference Manual
© 2015 Coriant.
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