Release Notes

New features introduced in 4.0(1.57)
Cisco TelePresence Server Software Release Notes (4.0(2.8)) Page 18 of 36
For each connection, the netstat list contains the following information about each end:
n The IP address or hostname (requires external DNS)
n The port or service
n Whether the connection uses TCP or UDP, and the associated internet protocol address scheme (4 or 6)
Ephemeral port range
The TelePresence Server now gives the administrator control over the range of ephemeral ports used for
media connections. This is configurable on the Network > Services page of the web interface.
The configurable range defaults to its previous value (49152 - 65535), so that upgraded TelePresence
Servers do not experience an unexpected restriction. The ephemeral port range may not start at a value lower
than your highest configured service port, and the maximum range is 10000 - 65535. We recommend a range
of at least 5000 ports to adequately provide for the theoretical limit on connections to the TelePresence
Server.
Resilience and diagnostics improvements
Intelligent flow control of incoming streams
A new rate adaption algorithm is now being used to respond to network conditions that could affect video
quality. These conditions include limited bandwidth, known packet loss level, and burstiness in packet loss.
The TelePresence Server uses the algorithm to recommend a bandwidth restriction to the stream's source,
based on the recent performance of that stream with respect to the network conditions. The TelePresence
Server continues to respond to changes if the chosen level does not improve the experience or is
unnecessarily restrictive on the incoming stream.
Resilience to media processor restart
Resilience to individual media processor restart was partially introduced in TelePresence Server version 3.1
for the Multiparty Media 310/320 models. This feature is now improved and also available on the
TelePresence Server MSE 8710, TelePresence Server 7010, and Cisco TelePresence Server on Virtual
Machine platforms.
All TelePresence Server platforms are now more resilient in the unusual circumstances of an individual
media processor failure. If a single media processor restarts it will not cause the whole device to restart. This
means that the other parts of the device software can maintain the state of the conferences—except for the
tasks performed by that particular processor—while recovering the processor gracefully.
A notification on the web interface alerts the administrator to the restart, as follows: