User guide

4-15
Cisco WLAN Controller Web Interface User Guide
OL-7416-04
Chapter 4 Controller Menu Bar Selection
Mobility Statistics
Mobility Statistics
Use CONTROLLER > Mobility Management > Mobility Statistics to navigate to this page.
This page displays the statistics for mobility group events, and is divided into three sections: Global
Mobility Statistics, Mobility Initiator Statistics, and Mobility Responder Statistics.
• Global Statistics are those that affect all mobility transactions.
• Mobility Initiator Statistics are those that are generated by controller initiating the mobility event.
• Mobility Responder Statistics are those generated by controller responding to a mobility event.
The following tables list parameters and descriptions or each of these statistics:
Table 4-8 Global Mobility Statistics
Parameter Description
Rx Errors Generic protocol packet receive errors, such as packet too
short or format incorrect.
Tx Errors Generic protocol packet transmit errors, such as packet
transmission fail.
Responses Retransmitted The mobility protocol uses UDP and it resends requests
several times if it doesn't receive a response. Because of
network or processing delays, the responder may receive
one or more retry requests after it initially responds to a
request. This is a count of the response resends.
Handoff Requests Received Total number of handoff requests received, ignored or
responded.
Handoff End Requests Received Total number of handoff end requests received. These are
sent by the Anchor or the Foreign to notify the other about
the close of a client session.
State Transitions Disallowed PEM (policy enforcement module) has denied a client state
transition, usually resulting in the handoff being aborted.
Resource Unavailable A necessary resource, such as a buffer, was unavailable,
resulting in the handoff being aborted.
Table 4-9 Mobility Initiator Statistics
Parameter Description
Handoff Requests Sent Number of client clients that have associated with
controller and have been 'announced' to the mobility
group.
Handoff Replies Received Number of handoff replies that have been received in
response to the requests sent.
Handoff as Local Received Number of handoffs in which the entire client session
has been transferred.
Handoff as Foreign Received Number of handoffs in which the client session was
anchored elsewhere.
Handoff Denys Received Number of handoffs that were denied.