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Rate (Mbps only)
Total CBR output rate
CBR Mode (SPTS
only)
Enables an SPTS output to be sent with constant bit rate.
Enter the desired output rate. If the service exceeds this rate, the system will report an
output buffer overflow alarm and drop the packets.
Source Port
The IP source port of the output multicast. In an Output Redundancy configuration,
this value will be replaced with the virtual source address.
Source IP
The source IP address override feature allows configuration of the source address of
an IP output multicast or unicast to any IP address.
If no value is set, the address of the data port is used.
VLAN
Displays available VLANs; the default value is off.
Select a suitable VLAN if required.
Refer to Section 8.3 for details on the parameters for
Port Settings
.
8.4.1.1
Forward Error Correction (FEC) Related Parameters
If the IP output module contains the Forward Error Correction (FEC) license, the Port Settings tab will contain
FEC parameters. This feature can be enabled with the
Forward
Error
Correction
checkbox, the following
parameters will appear.
The following parameters are available:
FEC Mode
FEC mechanism can be used to correct errors that occur during transport.
Choose either one:
•
COP3
–
Level A: Use FEC Columns only (protects again burst loss)
•
COP3
–
Level B: Use both FEC Columns and Rows (provides
additional protection against Random Packet Loss)
A FEC Matrix is generated and transmitted on two separate UDP ports:
•
FEC columns on UDP Port +2, and when using level B:
•
FEC Rows on UDP Port +4.
When FEC is enabled, it is important that the UDP ports reserved for the FEC
system is not occupied by other traffic.
Dimensions (LxD)
The FEC matrix, L=Columns, D=Rows; value ranges from 1 to 20.