Cisco Cisco Unified MeetingPlace Audio Server Maintenance Manual
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Cisco MeetingPlace Audio Server 5.2 Customer Engineering Guide (for Cisco MeetingPlace 8112)
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Chapter 4 Configuring the 8112 Server
Configuring the system
Figure 4-65 blade Command with DSCP Value
Note
This configuration must be done for each Multi Access Blade used for an IP configuration.
About jitter buffer settings
The jitter buffer concept is driven by the realities of voice packet networks such as network delay, delay
jitter, packet loss, and clock drift. The jitter buffer (also known as a “delay jitter buffer”) enforces an
additional packet delay of typically 50-150 additional milliseconds, but it provides the following
important benefits:
jitter, packet loss, and clock drift. The jitter buffer (also known as a “delay jitter buffer”) enforces an
additional packet delay of typically 50-150 additional milliseconds, but it provides the following
important benefits:
•
Smooths jitter — By delaying all the packets, it is possible to eliminate most effects of delay jitter.
That is, for any packets that arrive slightly early or slightly late, the jitter buffer allows the packets
to be processed at precise intervals. Any packets that arrive later or earlier than the size of the jitter
buffer are discarded, though. Therefore, the jitter buffer should not be set too small. However, the
jitter buffer should not be set too large because too much delay can be noticed by participants talking
to each other.
That is, for any packets that arrive slightly early or slightly late, the jitter buffer allows the packets
to be processed at precise intervals. Any packets that arrive later or earlier than the size of the jitter
buffer are discarded, though. Therefore, the jitter buffer should not be set too small. However, the
jitter buffer should not be set too large because too much delay can be noticed by participants talking
to each other.
***** B L A D E C O N F I G M E N U *****
1) View blade details
2) Modify blade
x) Exit program
Enter command: 2
Enter blade slot [1..16]: 16
Type [IP]:
Card Type [TP1610]:
Port Group [ 1]:
Number of Ports [120]:
1st Port [ 46]:
IP address [0] [172.20.18.30]:
IP address [1] [172.20.18.31]:
Subnet Mask [255.255.0.0]:
Default Gateway [172.20.1.1]:
Base UDP Port [0] [ 5000]:
Base UDP Port [1] [ 6000]:
Jitter Buffer Minimum Size [ 100]:
Jitter Buffer Optimization [ 7]:
IP Precedence [5]: unused
Type of Service (TOS) [ 0]: unused
DSCP / DiffServ [unused]: 40
RTCP Interval [default]: