Cisco Cisco Expressway 發佈版本通知
Port reference
Cisco Expressway X8.1 Software Release Notes
Page 6 of 11
Service/
function
function
Purpose
Expressway port
(default)
(default)
Direction Configurable via
Multiplexed
traversal
media
(Assent,
H.460.19
multiplexed
media)
traversal
media
(Assent,
H.460.19
multiplexed
media)
Ports used for multiplexed media in
traversal calls. RTP and RTCP media
demultiplexing ports are allocated from
the start of the traversal media ports
range.
traversal calls. RTP and RTCP media
demultiplexing ports are allocated from
the start of the traversal media ports
range.
The default media port range is 36000 to
59999. 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).
59999. 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).
36000 – 36001
UDP (Small /
Medium VM server)
UDP (Small /
Medium VM server)
or
36000 – 36011
UDP (Large VM
server)
UDP (Large VM
server)
inbound
outbound
outbound
Configuration >
Traversal Subzone
Traversal Subzone
Non-
multiplexed
media port
range
multiplexed
media port
range
Range of ports used for non-multiplexed
media. Ports are allocated from this range
in pairs, with the first port number of each
pair being an even number.
media. Ports are allocated from this range
in pairs, with the first port number of each
pair being an even number.
The default media port range is 36000 to
59999. 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).
59999. 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).
36002 – 59999
UDP (Small /
Medium VM server)
UDP (Small /
Medium VM server)
or
36012 – 59999
UDP (Large VM
server)
UDP (Large VM
server)
inbound
outbound
outbound
Configuration >
Traversal Subzone
Traversal Subzone
TURN relay
media port
range
media port
range
Range of ports available for TURN media
relay.
relay.
24000 – 29999 UDP inbound
outbound
Configuration >
Traversal > TURN
Traversal > TURN
Table 2: Local inbound/outbound ports (continued)
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.
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.
range is 3478 – 3483.
Remote listening ports
These tables show the default listening (destination) ports on the remote systems with which the
Expressway communicates.
Expressway communicates.
The source port on the Expressway for all of these communications is assigned from the Expressway's
ephemeral range.
ephemeral range.
Service/
function
function
Purpose
Destination port
(default)
(default)
Configurable via
DNS
Requests to a DNS server.
53 UDP
System > DNS
External manager
Outbound connection to an external
manager, for example Cisco TMS.
manager, for example Cisco TMS.
80 TCP
System > External
manager
manager
Table 3: Remote listening ports