Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Resource usage
The
Resource usage
page (
Status > System > Resource usage
) provides statistics about the current and
cumulative license usage for calls and registrations.
It shows current and peak (highest concurrent) usage broken down by:
n
Unified CM remote session calls (if Unified Communications Mobile and remote access is enabled)
n
Traversal calls
n
Non-traversal calls
n
SIP traversal audio-only calls
n
Registrations
n
TURN relays (VCS Expressway 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 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.
Any traversal or non-traversal call 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 VCS unit:
any peer in the cluster. Usage is limited to the maximum physical capacity of each VCS unit:
Large VM servers
VCS appliances (or equivalent VM)
Traversal calls
500
150
Non-traversal calls
750
750
Registrations
5000
2500
Note that each VCS comes pre-installed with 2,500 registration licenses, and that registration licenses are
not shared across a cluster.
not 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.
traversal 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 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
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
Cisco VCS Administrator Guide (X8.1)
Page 325 of 504
Overview and status information
Resource usage