Smart Continuous Switching; Hot Swapping; Hot Swap Time Guidelines - Alcatel-Lucent OmniSwitch 10K User Manual

OmniSwitch 10K Availability Features

Smart Continuous Switching

In redundant CMM configurations, the switch provides support for NIs during failover. In other words, if
the primary CMM fails or goes offline for any reason, NI modules will continue data transmission and
routing functions during the secondary CMM's takeover process. This availability feature is referred to as
Smart Continuous Switching.
Incoming Layer 2 packets will continue to be sent to the appropriate egress port during failover. Known
routes will also be supported. (Note, however, that the NI cannot learn new routes without CMM support.
Any new route information will be ignored.) Spanning Tree will continue handling BPDUs received on the
switch ports, as well as port link up and down states. The Spanning Tree topology will not be disrupted.
Note. Smart Continuous Switching is designed to maintain data flow only during CMM failover and is not
intended to support long-term data flow. If both the primary and secondary CMM modules go offline or
are removed from the chassis, switch operations (including all NI support) will be disabled.

Hot Swapping

Hot swapping refers to the action of adding, removing, or replacing certain hardware components without
powering off your switch and disrupting other components in the chassis. This feature greatly facilitates
hardware upgrades and maintenance and also allows you to easily replace components in the unlikely
event of hardware failure. The following hardware components can be hot swapped:
• Chassis Management Modules (CMMs)
Chassis Fabric Modules (CFMs)
•
Network Interface modules (NIs)
•
• Power supplies
Fan trays
•

Hot Swap Time Guidelines

All module extractions must have a 30 second interval before initiating another hot swap activity.
•
• All module insertions must have a 5 minute interval AND the OK2 LED blinking green before initiat-
ing another hot swap activity.
Note. Hot Swapping Non-Redundant Management Modules and Power Supplies. If there is only one
CMM or power supply installed in the chassis and either of these components is removed or replaced, all
switch functions will stop until a replacement is installed.
For information on adding and removing CMMs and CFMs, refer to
Fabric Modules." For information on adding and removing NIs, refer to
(NI) Modules." For information on adding and removing power supplies and fan trays, refer to
"Chassis and Power Supplies."
page 1-2
Chapter 3, "Chassis Management and
Chapter 4, "Network Interface
OmniSwitch 10K Hardware Users Guide
OmniSwitch 10K
Chapter 2,
August 2015