Remote Listening Ports - Cisco TelePresence Administrator's Manual

Reference material
Table 7: Local inbound/outbound ports (continued)
Service/ Purpose
function
Multiplexed Ports used for multiplexed media in
traversal traversal calls. RTP and RTCP media
media demultiplexing ports are allocated from
(Assent, the start of the traversal media ports
H.460.19 range.
multiplexed
The default media port range of 36000 to
media)
59999 applies to new installations of
X8.1 or later. The first 2 ports in the range
are used for multiplexed traffic only (with
Large VM deployments the first 12 ports
in the range – 36000 to 36011 – are
used). The previous default range of
50000 - 54999 still applies to earlier
releases that have upgraded to X8.1.
Non- Range of ports used for non-multiplexed
multiplexed media. Ports are allocated from this
media port range in pairs, with the first port number
range of each pair being an even number.
The default media port range of 36000 to
59999 applies to new installations of
X8.1 or later. The first 2 ports in the range
are used for multiplexed traffic only (with
Large VM deployments the first 12 ports
in the range – 36000 to 36011 – are
used). The previous default range of
50000 - 54999 still applies to earlier
releases that have upgraded to X8.1.
TURN relay Range of ports available for TURN media
media port relay.
range
Note that two services or functions cannot share the same port and protocol; an alarm will be raised if you
attempt to change an existing port or range and it conflicts with another service.
* On Large VM server deployments you can configure a range of TURN request listening ports. The default
range is 3478 – 3483.
** The default TURN relay media port range of 24000 – 29999 applies to new installations of X8.1 or later. The
previous default range of 60000 – 61799 still applies to earlier releases that have upgraded to X8.1.

Remote listening ports

These tables show the default listening (destination) ports on the remote systems with which the VCS
communicates.
The source port on the VCS for all of these communications is assigned from the VCS's ephemeral range.
Cisco VCS Administrator Guide (X8.1.1)
VCS port (default) Direction Configurable via
36000 – 36001 inbound
UDP (standard outbound
appliances or
equivalent VM)
or
36000 – 36011
UDP (Large VM
server)
36002 – 59999 inbound
UDP (standard outbound
appliances or
equivalent VM)
or
36012 – 59999
UDP (Large VM
server)
24000 – 29999 UDP inbound
** outbound
Port reference
Configuration >
Local Zone >
Traversal Subzone
Configuration >
Local Zone >
Traversal Subzone
Configuration >
Traversal > TURN
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