HP A6600 Configuration Manual page 140

LeaveAll timer
4.
When a GARP application is enabled, a LeaveAll timer starts. The GARP participant sends a LeaveAll
message when the timer expires. Then, the LeaveAll timer restarts to begin a new cycle. The LeaveAll
timer and all other GARP timers also restart when the GARP participant receives a LeaveAll message.
Set the LeaveAll timer greater than the Leave timer. Each time a LeaveAll timer expires, a network-wide
re-join occurs.
A device may send LeaveAll messages at the interval set by its LeaveAll timer or the LeaveAll timer on
another device on the network, whichever is smaller. This is because each time a device on the network
receives a LeaveAll message it resets its LeaveAll timer.
GARP PDU format
Figure 44 GARP PDU format
As shown in
the GARP PDU fields.
Table 19 GARP PDU fields
Field
Protocol ID
Message
End mark
Attribute type
Attribute list
Attribute
Figure 44, GARP PDUs are encapsulated in IEEE 802.3 Ethernet frames.
Description
Protocol identifier for GARP
One or multiple messages, each
containing an attribute type and an
attribute list
Indicates the end of a GARP PDU
Defined by the GARP application
Contains one or multiple attributes
Consists of an Attribute Length, an
Attribute Event, and an Attribute
Value
133
Table 19
Value
0x0001
––
0x00
0x01 for GVRP, indicating the
VLAN ID attribute
––
––
describes