Cisco Cisco TelePresence Video Communication Server Expressway 관리 매뉴얼
Diagnostic logging
The tcpdump facility has been removed from the Diagnostic logging tool.
Jabber Guest
Jabber Guest support has been removed (it was previously provided as a feature preview in X8.1). It will be
reintroduced in a future release of VCS software.
reintroduced in a future release of VCS software.
X8.1
Microsoft Lync 2013 / H.264 SVC support
The Microsoft Lync B2BUA now supports calls to and from Microsoft Lync 2013 clients. It provides interworking
between standard H.264 AVC and Lync 2013's H.264UC SVC codec. To use Lync 2013 you must install the
Microsoft Interoperability option key (formerly known as the Enhanced OCS Collaboration option key). Note that for
Lync 2010, the Microsoft Interoperability option key requirements remain as per previous releases (i.e. it is required
for encrypted calls to and from Microsoft Lync Server and for establishing ICE calls to Lync clients).
between standard H.264 AVC and Lync 2013's H.264UC SVC codec. To use Lync 2013 you must install the
Microsoft Interoperability option key (formerly known as the Enhanced OCS Collaboration option key). Note that for
Lync 2010, the Microsoft Interoperability option key requirements remain as per previous releases (i.e. it is required
for encrypted calls to and from Microsoft Lync Server and for establishing ICE calls to Lync clients).
Presentation sharing via Lync 2013 is supported but only from VCS to Lync.
Support for standards-based H.264 SVC codecs
The B2BUA now supports calls to standards-based H.264 SVC codecs.
Improved performance and scalability
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VCS X8.1 software can take advantage of the improved performance and scalability capabilities that are
available when running on Large VM server deployments. It can support up to 500 traversal calls, 750 non-
traversal calls and 5000 registrations. Note that standard VCS appliances or equivalent VM hardware still
provides support for up to 150 traversal calls, 750 non-traversal calls and 2500 registrations.
available when running on Large VM server deployments. It can support up to 500 traversal calls, 750 non-
traversal calls and 5000 registrations. Note that standard VCS appliances or equivalent VM hardware still
provides support for up to 150 traversal calls, 750 non-traversal calls and 2500 registrations.
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The number of concurrent searches has increased from 100 to 500.
New traversal media port framework
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For new installations of X8.1 or later, the default range for traversal media ports is 36000 – 59999. The
previous default range of 50000 - 54999 still applies to earlier releases that have upgraded to X8.1. The larger
range is required to support the improved scalability features.
previous default range of 50000 - 54999 still applies to earlier releases that have upgraded to X8.1. The larger
range is required to support the improved scalability features.
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The media demultiplexing ports on the VCS Expressway now use the first set of ports from the general range of
traversal media ports instead of 2776 and 2777.
traversal media ports instead of 2776 and 2777.
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On existing systems that have been upgraded to X8.1, this will be 50000 and 50001 by default.
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On new installations of X8.1, this will be 36000 and 36001 by default.
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On large VM deployments, the first 12 ports in the traversal media port range are used (50000 - 50011 or
36000 - 36011 as appropriate).
36000 - 36011 as appropriate).
This applies to all RTP/RTCP media, regardless of whether it is H.323 or SIP. Thus, the previously used Media
demultiplexing RTP port and RTCP port settings (Configuration > Traversal > Ports) and associated
demultiplexing RTP port and RTCP port settings (Configuration > Traversal > Ports) and associated
xConfiguration Traversal Server
CLI commands have been removed.
Administrators will need to adjust their firewall settings accordingly.
New TURN server port framework
On Large systems you can configure a range of TURN request listening ports. The default range is 3478 – 3483.
For new installations of X8.1 or later, the default range for TURN relay media ports is 24000 – 29999. The previous
default range of 60000 – 61799 still applies to earlier releases that have upgraded to X8.1.
default range of 60000 – 61799 still applies to earlier releases that have upgraded to X8.1.
Delegated credential checking for device authentication (SIP only)
By default, the VCS uses the relevant credential checking mechanisms (local database, Active Directory Service or
H.350 directory via LDAP) on the VCS performing the authentication challenge.
H.350 directory via LDAP) on the VCS performing the authentication challenge.
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Cisco TelePresence Video Communication Server Administrator Guide
Reference Material