Руководство По Обслуживанию для Cisco Cisco Expressway
Service/
function
function
Purpose
Expressway port
(default)
(default)
Direction Configurable via
Ephemeral
ports
ports
Various purposes.
30000 – 35999
outbound
System >
Administration
Administration
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 traversal port range
is 36000 to 59999, and is set on the
Expressway-C at
is 36000 to 59999, and is set on the
Expressway-C at
Configuration
> Traversal Subzone
. In Large
Expressway systems the first 12 ports
in the range – 36000 to 36011 by
default – are always reserved for
multiplexed traffic. The Expressway-E
listens on these ports. You cannot
configure a distinct range of
demultiplex listening ports on Large
systems: they always use the first 6
pairs in the media port range. On
Small/Medium systems you can
explicitly specify which 2 ports listen
for multiplexed RTP/RTCP traffic, on
the Expressway-E (
in the range – 36000 to 36011 by
default – are always reserved for
multiplexed traffic. The Expressway-E
listens on these ports. You cannot
configure a distinct range of
demultiplex listening ports on Large
systems: they always use the first 6
pairs in the media port range. On
Small/Medium systems you can
explicitly specify which 2 ports listen
for multiplexed RTP/RTCP traffic, on
the Expressway-E (
Configuration >
Traversal > Ports
). If you choose not
to configure a particular pair of ports
(Use configured demultiplexing ports
= No), then the Expressway-E will
listen on the first pair of ports in the
media traversal port range (36000 and
36001 by default).
(Use configured demultiplexing ports
= No), then the Expressway-E will
listen on the first pair of ports in the
media traversal port range (36000 and
36001 by default).
36000 – 36001
UDP (Small /
Medium systems)
UDP (Small /
Medium systems)
or
36000 – 36011
UDP (Large
systems)
UDP (Large
systems)
inbound
outbound
outbound
Configuration >
Traversal Subzone
Traversal Subzone
Table 9: Local inbound/outbound ports (continued)
Cisco Expressway Administrator Guide (X8.5.2)
Page 305 of 403
Reference material
Port reference