Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Applications
Field
Description
Usage tips
Subscription
expiration
time
expiration
time
The maximum time (in seconds) within which a subscriber must
refresh its subscription. If the subscriber does not send a
refresh within this period, the Presence Server will stop sending
NOTIFY messages to it.
The default is 3600 seconds.
refresh its subscription. If the subscriber does not send a
refresh within this period, the Presence Server will stop sending
NOTIFY messages to it.
The default is 3600 seconds.
You may want to
increase this value
in deployments
with large
numbers of
endpoints, to
prevent too many
messages being
sent over your
network.
increase this value
in deployments
with large
numbers of
endpoints, to
prevent too many
messages being
sent over your
network.
Publication
expiration
time
expiration
time
The maximum time (in seconds) within which a publisher must
refresh its publication. If the publisher does not send a refresh
within this period, the Presence Server will show its presence
as Offline.
The default is 1800 seconds.
refresh its publication. If the publisher does not send a refresh
within this period, the Presence Server will show its presence
as Offline.
The default is 1800 seconds.
You may want to
increase this value
in deployments
with large
numbers of
endpoints, to
prevent too many
messages being
sent over your
network.
increase this value
in deployments
with large
numbers of
endpoints, to
prevent too many
messages being
sent over your
network.
Regardless of whether or not the Presence Server is enabled, the Cisco VCS will still continue to
receive PUBLISH messages if they are sent to it from any of the following sources:
receive PUBLISH messages if they are sent to it from any of the following sources:
n
locally registered endpoints that support presence
n
the local PUA (if enabled)
n
remote SIP Proxies
Recommendations
n
Cisco VCS Expressway and Cisco VCS Control: the recommended configuration for a Cisco
VCS Expressway when acting as a traversal server for a Cisco VCS Control is to enable the PUA
and disable the Presence Server on the Cisco VCS Expressway, and enable the Presence Server
on the Cisco VCS Control. This will ensure that all PUBLISH messages generated by the PUA are
routed to the Cisco VCS Control.
VCS Expressway when acting as a traversal server for a Cisco VCS Control is to enable the PUA
and disable the Presence Server on the Cisco VCS Expressway, and enable the Presence Server
on the Cisco VCS Control. This will ensure that all PUBLISH messages generated by the PUA are
routed to the Cisco VCS Control.
n
Cisco VCS neighbors: if you have a deployment with two or more Cisco VCSs neighbored
together, you are recommended to enable the presence server on just one Cisco VCS. This will
ensure a central source of information for all presentities in your network.
together, you are recommended to enable the presence server on just one Cisco VCS. This will
ensure a central source of information for all presentities in your network.
n
Cisco VCS clusters: for information about how Presence works within a Cisco VCS cluster, see
Note: any defined
also apply to any Publication, Subscription or Notify URIs handled by
the Presence Services.
OCS Relay
The OCS Relay page (
Applications > OCS Relay
) allows you to enable and disable the OCS Relay
application on the Cisco VCS, and configure the settings it uses.
The OCS Relay application is required in deployments that use both MOC clients and FindMe, where
they both use the same SIP domain. It enables the Cisco VCS to:
they both use the same SIP domain. It enables the Cisco VCS to:
Cisco VCS Administrator Guide (X6)
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