OmniSwitch 6850E Series Chassis and Hardware Components Dying Gasp
OmniSwitch 6850E Series Hardware Users Guide January 2013 page 2-49
Link OAM PDU
As soon as the power failure is detected an 802.3ah OAM Information PDU is sent to all ports for which
link OAM is enabled and the LinkOAM port status is operational. The PDU will have the Dying Gasp bit
set.
Use the
efm-oam
and
efm-oam port propagate-events
commands to enable the generation of an
802.3ah OAM Information PDU upon a dying gasp event:
-> efm-oam enable
-> efm-oam port 2/1-10 propagate-events dying-gasp enable
Link OAM PDU Priority
It may not be possible to generate PDUs on all ports enabled for link OAM. Dying gasp packets will be
sent in the following order based on port priority:
1. Uplink ports
2. Combo ports
3. All other ports
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