Motorola WS5100 Series Reference Manual page 257

2. Select the Peer Statistics
3. Refer to the following information within the Peer Statistics tab:
Peer IP Displays the IP addresses of the peer switches within the mobility domain. Each
peer can support up to 500 MUs.
JOIN Events Displays the number of JOIN messages sent and received. JOIN messages
sent/rcvd advertise the presence of MUs entering the mobility domain for the first time.
When a MU (currently not present in the MU database) associates with a switch,
it immediately sends a JOIN message to the host switch with MAC, VLAN and IP
information (both current and home switch IP info). The home switch forwards the
JOIN to all its peers (except the one from which it received the original message).
JOIN messages are always originated by the current switch. JOIN messages are
also used during the home switch selection phase to inform a candidate home
switch about a MU. The current switch selects the home switch (based on its local
selection mechanism) and sends a JOIN message to the home switch that is
forwarded it to all its peers.
LEAVE Events Displays the number of LEAVE messages sent and received. LEAVE messages are
sent/rcvd sent when the switch decides a MU originally present in the MU database is no
longer present in the mobility domain. The criterion to determine the MU has
actually left the network is implementation specific. The current switch sends the
LEAVE message with the MU's MAC address information to the home switch,
which eventually forwards the message to each mobility peer.
tab.
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Switch Services