teamed port under test is able to receive the heartbeat frame, the test succeeds. This feature
can be disabled, but fault tolerance will be reduced.
• Switch MAC table updates with team MAC address – The Primary Port must ensure that the
switch has the team’s MAC address on the correct port, and that the switch keeps the team’s
MAC address in its MAC table [or Content Addressable Memory (CAM) table]. The Switch
MAC table update heartbeat is used with most team types when a failover occurs, and a
Non-Primary port takes over the Primary role. This allows the new Primary port to update
the Switch MAC table immediately so traffic destined for the team will make a smooth
transition and not experience timeouts or failures. This feature cannot be disabled and is
always active on certain team types regardless whether receive or transmit path validation
heartbeats are enabled or disabled.
Heartbeat Timers:
HP Integrity Network Adapter Teaming utilizes a timer mechanism for checking network
connectivity with heartbeats. Two timers are available for custom tuning on the Settings Tab of
the Team Properties page in the NCU.
NOTE: Transmit path validation and receive path validation are both enabled by default. Each
has a default value of 3 seconds. If manual configuration is desired, the valid range for both
timers is 3 to 60 seconds.
Figure 4-3 Team Properties page – Settings tab containing the heartbeat settings
• Transmit path validation – At the transmit path validation timer interval (default = 3 seconds),
the team checks to determine if each port has successfully transmitted any frame since the
last timer interval. If not, then the port’s internal status is degraded by incrementing the
port’s internal status by 1 (starting at 0). After the port’s internal status has degraded to 2
(2 transitions) without transmitting any kind of frame, that port will transmit a heartbeat
Types of HP Integrity Network Adapter Teams 35
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