USER GUIDE
EdgeSafe 40G Bypass Modular Network TAP | M40GBP
Version 1.6 Page 70 of 159
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6.48.4 Get/Set heartbeat packet transmit direction
Heartbeat packets can be transmitted from either MON0 or MON1 or from both ports.
By default the heartbeat packets are transmitted from MON0 port and are received by MON1
port.
6.48.5 Get/Set criteria for determine heartbeat packet failure.
The heartbeat packet failure criteria can be set to Unidirectional or Bidirectional.
The heartbeat packet failure criteria function varies according to the heartbeat packet transmit
direction
While the heartbeat packets transmit direction is set to MON0 or MON1, the heartbeat packets
failure criteria will be set to unidirectional state and the heartbeat packets are expected to be
received by the second monitor port. If the second monitor port does not receive the heartbeat
packets within the hb_holdtime time it will set the Active Bypass circuitry to the state that was
set by the hb_exp_state (Bypass, Tap or linkdrop mode).
While the heartbeat packets transmit direction is set to Bidirectional (HB packets are transmitted
from both monitor ports) the heartbeat packet failure criteria can be set to unidirectional or
bidirectional.
Unidirectional: The M40GBP will change its state if one of the monitor ports does not receive
heartbeat packets. The M40GBP will restore to its default state when both monitor ports receives
the heartbeat packets.
Bidirectional: The M40GBP will change its state if both monitor ports do not receive the
heartbeat packets. The M40GBP will restore to its default state if at least one of the monitor
ports receives the heartbeat packets.
M40GBP$ get_hb_tx_dir
hb_dir: mon0.
command succeeded.
M40GBP$
M40GBP$ set_hb_tx_dir mon1
command succeeded.
M40GBP$ set_hb_tx_dir bidir
command succeeded.
M40GBP$ set_hb_tx_dir mon0
command succeeded.
M40GBP$
M40GBP$ get_hb_fail
hb_fail: unidirectional.
command succeeded.
M40GBP$
M40GBP$ set_hb_fail bidir
hb_dir: bidirectional.
command succeeded.
M40GBP$
