Reviewing Layer 3 Mu Status - Motorola RFS7000 Series System Reference Manual

JOIN Events
sent/rcvd
LEAVE Events
sent/rcvd
L2-ROAMs
sent/rcvd
L3-ROAMs
sent/rcvd
4. Click the Clear Statistics

5.5.4 Reviewing Layer 3 MU Status

The Layer 3 Mobility MU Status
Use the MU status information to familiarize yourself with these MUs and their mobility-related parameters
to distinguish new MUs entering the network from existing MUs roaming within the mobility domain.
To view Layer 3 mobility MU statistics
1. Select Services
Displays the number of JOIN messages sent and received. JOIN
messages 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.
Displays the number of LEAVE messages sent and received. LEAVE
messages are 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.
Displays the number of Layer 2 ROAM messages sent and received.
When a MU roams to a new switch on a different layer 3 network
(MU is mapped to a different VLAN ID), it sends a L3-ROAM
message to the home switch with the new IP information for the
current switch it is associated with. The L3-ROAM message is then
forwarded by the home switch to each peer.
Displays the number of Layer 3 ROAM messages sent and received.
When a MU roams to a new current switch (on the same layer 3
subnet as the old current switch), it sends a L2-ROAM message to
the old home switch with the new home switch-IP and current
switch-IP information. This L2-ROAM message is then forwarded
by the old home switch to each peer.
button to remove the data displayed for the selected peer IP address.
tab displays a set of MU stats for associated MUs within the mobility domain.
> Layer 3 Mobility from the main menu tree.
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Switch Services