Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
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Monitored resource usage, expressed as a percentage of the system capacity.
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Current and peak license usage, expressed as a percentage of the available licenses for each license type.
Each traversal call license allows either 1 video call or 2 audio-only SIP calls. Hence, a 100 traversal call
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 standard video call license (traversal or non-
traversal as appropriate).
Each traversal call license allows either 1 video call or 2 audio-only SIP calls. Hence, a 100 traversal call
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 standard video call license (traversal or non-
traversal as appropriate).
You can view details of current calls or registrations 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 VCS systems
If the VCS 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:
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Traversal or non-traversal call licenses
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TURN relay licenses
:
Small / Medium / CE500 systems
Large / CE1000 systems
Traversal calls
150
500
Non-traversal calls
750
750
Registrations
2500
5000
TURN relays *
1800
6000
Table 9 Maximum licenses that a peer can use
* 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.
Note that each VCS comes pre-installed with 2,500 registration licenses, and that registration licenses are not
shared across a cluster.
shared across a cluster.
If two endpoints are registered to different cluster peers, and a SIP call is made between them, two non-traversal
licenses are used. If the call is made over H.323, only one non-traversal license is used.
licenses are used. If the call is made over H.323, only one non-traversal license is used.
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.
You can see a summary of all of the call, registration and TURN relay licenses installed on each cluster peer by going
to the Option keys page and scrolling down to the Current licenses section.
to the Option keys page and scrolling down to the Current licenses section.
Registration Status
Registration status information can be displayed for both current and historic registrations. If the VCS is part of a
cluster, all registrations that apply to any peer in the cluster are shown.
cluster, all registrations that apply to any peer in the cluster are shown.
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Cisco TelePresence Video Communication Server Administrator Guide