Cisco Cisco Expressway 维护手册
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Resource usage
The
Resource usage
page (
Status > System > Resource usage
) provides statistics about the current and
cumulative license usage for calls.
It shows current and peak (highest concurrent) usage broken down by:
n
Unified CM remote session calls
n
Rich media sessions
n
TURN relays (Expressway-E only)
It also displays resource and license usage information:
n
Monitored resource usage, expressed as a percentage of the system capacity.
n
Current and peak license usage, expressed as a percentage of the available licenses for each license type.
Each rich media session license allows either 1 video call or 2 audio-only SIP traversal calls. Hence, a 100
rich media session license would allow, for example, 90 video and 20 SIP audio-only simultaneous calls.
Any other audio-only call (non-traversal, H.323 or interworked) will consume a rich media session license.
Each rich media session license allows either 1 video call or 2 audio-only SIP traversal calls. Hence, a 100
rich media session license would allow, for example, 90 video and 20 SIP audio-only simultaneous calls.
Any other audio-only call (non-traversal, H.323 or interworked) will consume a rich media session license.
You can view details of current calls by clicking on the relevant item in the section.
All statistics are based on data since the system was last restarted. The information on this page refreshes
automatically every 5 seconds.
automatically every 5 seconds.
Clustered Expressway systems
If the Expressway is part of a cluster, details for each peer are shown as well as totals for the entire cluster.
Any rich media session licenses that have been installed on a cluster peer are available for use by any peer in
the cluster. Usage is limited to the maximum physical capacity of each Expressway unit:
the cluster. Usage is limited to the maximum physical capacity of each Expressway unit:
Large VM servers
Small/Medium VM servers
Rich media sessions
500
150
If a cluster peer becomes unavailable, the shareable licenses installed on that peer will remain available to
the rest of the cluster peers for two weeks from the time the cluster lost contact with the peer. This will
maintain the overall license capacity of the cluster — however, note that each peer is still limited by its
physical capacity as listed above. After this two week period, the licenses associated with the unavailable
peer are removed from the cluster. To maintain the same capacity for your cluster, you should ensure that
either the problem with the peer is resolved or new option keys are installed on another peer in the cluster.
the rest of the cluster peers for two weeks from the time the cluster lost contact with the peer. This will
maintain the overall license capacity of the cluster — however, note that each peer is still limited by its
physical capacity as listed above. After this two week period, the licenses associated with the unavailable
peer are removed from the cluster. To maintain the same capacity for your cluster, you should ensure that
either the problem with the peer is resolved or new option keys are installed on another peer in the cluster.
You can see a summary of all of the call and TURN relay licenses installed on each cluster peer by going to
the
the
Option keys
page and scrolling down to the
Current licenses
section.
Cisco Expressway Administrator Guide (X8.1)
Page 213 of 344
Overview and status information
Resource usage