Cisco Cisco Expressway Maintenance Manual
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View counters for this relay: information about the number of TURN requests received, and the number of
TURN success or error responses sent. It also shows counts of the number of packets forwarded to and from
the client that allocated this relay.
TURN success or error responses sent. It also shows counts of the number of packets forwarded to and from
the client that allocated this relay.
Unified Communications Status
The Unified Communications status page (Status > Unified Communications) shows the current status of the
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the number of configured Unified CM and IM&P servers (Expressway-C only)
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the current number of active provisioning sessions (Expressway-C only)
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the number of current calls
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all the domains and zones that have been configured for Unified Communications services
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statistics about SSO access requests and responses
If any configuration or connectivity problems are detected, appropriate messages are displayed with either links or
guidelines as to how to resolve the issue.
guidelines as to how to resolve the issue.
You can also view some advanced status information, including:
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a list of all current and recent (shown in red) provisioning sessions (Expressway-C only)
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a list of the automatically-generated SSH tunnels servicing requests through the traversal zone
Checking SSO Statistics
The SSO Statistics page (Status > Unified Communications > View detailed SSO statistics) shows a summary of the
requests and responses issued, as well as more detailed statistics about successful and unsuccessful attempts to
sign on.
requests and responses issued, as well as more detailed statistics about successful and unsuccessful attempts to
sign on.
If there are no instances of a particular type of request or response, there is no counter shown for that type.
Lync B2BUA
Lync B2BUA Status
The Microsoft Lync back-to-back user agent (B2BUA) on the Expressway is used to route SIP calls between the
Expressway and a Microsoft Lync Server.
Expressway and a Microsoft Lync Server.
The information shown includes:
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the number of current calls passing through the Lync B2BUA
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resource usage as a percentage of the number of allowed Lync B2BUA calls
Managing Alarms
Alarms occur when an event or configuration change has taken place on the Expressway that requires some manual
administrator intervention, such as a restart. Alarms may also be raised for hardware and environmental issues such
as faulty disks and fans or high temperatures.
administrator intervention, such as a restart. Alarms may also be raised for hardware and environmental issues such
as faulty disks and fans or high temperatures.
The Alarms page (Status > Alarms) provides a list of all the alarms currently in place on your system (and, where
applicable, their proposed resolution). When there are unacknowledged alarms in place on the Expressway, an alarm
icon appears at the top right of all pages. You can also access the Alarms page by clicking on the alarm icon.
applicable, their proposed resolution). When there are unacknowledged alarms in place on the Expressway, an alarm
icon appears at the top right of all pages. You can also access the Alarms page by clicking on the alarm icon.
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Cisco Expressway Administrator Guide