AudioCodes Mediant 500 MSBR, User Manual

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Version 7.2 309 Mediant 500 MSBR
User's Manual 20. Control Network
IPv6 Interface Name
ipv6if
[CpMediaRealm_IPv6I
F]
Assigns an IPv6 network interface to the Media Realm.
By default, no value is defined.
Port Range Start
port-range-start
[CpMediaRealm_PortR
angeStart]
Defines the starting port for the range of media interface UDP ports.
By default, no value is defined.
Note:

You must either configure all your Media Realms with port ranges or all
without; not some with and some without.

The available UDP port range is according to the BaseUDPport
parameter. For more information, see Configuring RTP Base UDP Port
on page 183.

The base UDP port number (BaseUDPPort parameter) must be greater
than the highest UDP port configured for a SIP Interface (see
Configuring SIP Interfaces on page 325). For example, if your highest
configured UDP port for a SIP Interface is 6060, you must configure the
BaseUDPPort parameter to any value greater than 6060.

The port must be different from ports configured for SIP traffic (i.e.,
ports configured for SIP Interfaces). For example, if the RTP port range
is 6000 to 6999, the SIP port can be less than 6000 or greater than
6999.
Number of Media
Session Legs
session-leg
[CpMediaRealm_Medi
aSessionLeg]
Defines the number of media sessions for the configured port range.
By default, no value is defined.
Port Range End
port-range-end
[CpMediaRealm_PortR
angeEnd]
(Read-only field) Displays the ending port for the range of media interface
UDP ports. The device automatically populates the parameter with a value,
calculated by the summation of the 'Port Range Start' parameter and
'Number of Media Session Legs' parameter (multiplied by the port chunk
size) minus 1:
start port + (sessions * port spacing) - 1
For example, a port starting at 6,000, 5 sessions and 10 port spacing:
6,000 + (5 * 10) - 1 = 6,000 + (50) - 1 = 6,000 + 49
= 6,049
The device allocates the UDP ports for RTP, RTCP and T.38 traffic per leg
in "jumps" (spacing) of 10. For example, if the port range starts at 6000 and
the UDP port spacing is 10, the available ports include 6000, 6010, 6020,
6030, and so on (depending on number of media sessions).
For RTCP and T.38 traffic, the port offset from the RTP port used for the
voice session is one and two, respectively. For example, if the voice
session uses RTP port 6000, the RTCP port and T.38 port for the session
is 6001 and 6002, respectively. However, you can configure the device to
use the same port for RTP and T.38 packets, by configuring the
T38UseRTPPort parameter to 1.
For more information on local UDP port range, see Configuring RTP Base
UDP Port on page 183.