Cisco Cisco Expressway Maintenance Manual
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Monitored resource usage, expressed as a percentage of the system capacity.
■
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.
The following types of licenses are pooled for use by any peer in a cluster, irrespective of which peer the licenses are
installed on:
installed on:
■
Rich media session licenses
■
TURN relay licenses
for per peer capacity limits).
If a cluster peer becomes unavailable, the shareable licenses installed on that peer 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 limited by its physical capacity. 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.
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 limited by its physical capacity. 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.
Small / Medium / CE500 / CE1100
‡
systems
Large / CE1000 / CE1100
‡
systems
Rich media
sessions
sessions
150
†
500
TURN relays *
1800
6000
Table 10 Maximum licenses that a peer can use
‡ CE1100 appliance can run with medium or large capacity, depending on whether it has 1Gbps or 10Gbps NICs
installed.
installed.
† This is the maximum number of licenses the system can use. This limit specifically applies to the case where a peer
becomes unavailable and other peers must use its licenses to honor the cluster's overall capacity. This is not
intended as a production capacity limit, only as a temporary measure to allow the affected peer to be returned to
normal service. We strongly discourage installing more than 100 licenses on any platform that has small or
medium capacity.
becomes unavailable and other peers must use its licenses to honor the cluster's overall capacity. This is not
intended as a production capacity limit, only as a temporary measure to allow the affected peer to be returned to
normal service. We strongly discourage installing more than 100 licenses on any platform that has small or
medium capacity.
* On a Large system, the total TURN capacity of 6000 relays is spread evenly across 6 ports; each port is limited to
handling 1000 relays. On a Small/Medium system, there is a single TURN port that handles up to 1800 relays.
handling 1000 relays. On a Small/Medium system, there is a single TURN port that handles up to 1800 relays.
You can see a summary of all of the call and TURN relay licenses installed on each cluster peer by going to the Option
keys page and scrolling down to the Current licenses section.
keys page and scrolling down to the Current licenses section.
Call Status
Call status information can be displayed for both current and completed calls:
230
Cisco Expressway Administrator Guide
Overview and Status Information