T-VIPS CP560, User Manual

Page: 137 / 200

WEB Interface 137
ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
port is used by the receiver to separate one stream from another. UDP port numbers are
in the range 1-65535.
Warning: Please ensure that there is no conflict in UDP ports in use. Pay
special attention to the fact that FEC data are always sent on UDP ports
two higher than the media port and four higher than the media port, e.g.,
if the UDP destination port is 5510, column FEC UDP port is 5512 and
row FEC UDP port is 5514.
UDP source port
Enter the UDP source port to be used in the outgoing UDP frames. UDP port numbers
are in the range 1-65535. Note that the receiver unit may not check the source port when
receiving streams. FEC frames are transmitted using the same UDP source port as the
media frames.
TS packets per frame
Enter the number of 188 byte MPEG-2 transport stream packets to map into each UDP
frame. Valid values are between 1 and 7. Normally 7 is the best choice to reduce overhead
and Ethernet frame rate. For very low bitrate streams, less than 7 packets per frame may
be used to advantage reducing the delay through the unit.
Type of service (TOS)
Enter Type of Service parameter as a byte value to be set in the Type-of-Service (TOS)
field in the IP header as specified in RFC-791. This parameter is used for Class-of-Service
prioritisation. Its usefulness depends on routers honouring this field. Please refer to
Appendix D “Quality of service – Setting Packet priority” for further details.
Time to Live (TTL)
Enter Time to Live parameter as a byte value to be set in the Time to Live (TTL) field in
the IP header as specified in RFC-791.
Manual destination interface
If you want to manually set the interface you want the data to be transmitted through, check
the box and select the wanted interface. If you wish to use the IP routing configuration
leave the box unchecked.
The
Advanced IP Config
field:
Use multicast router
Click this box to enable use of multicast router. The address of the multicast router is
the same for the entire unit and is configured in the Network sub-page of the Device Info
page. When this option is enabled, the MAC address used when configuring a multicast
destination IP address will be resolved to the IP address of the multicast router. If not
using the multicast router option, multicast addresses automatically resolve to dedicated
multicast MAC addresses.
Override VLAN priority
Priority is normally configured per VLAN interface. It is possible to override the VLAN
priority field for the output stream by checking this box and entering a new priority value.