User manual

AN-80i User Manual
70-00072-01-10 Proprietary Redline Communications © 2011 Page 58 of 152 March 2, 2011
The Group Default Priority value is used when adding the 802.1Q tag (Connection VLAN
ID) to a packet being forwarded only when the Group Tagging Mode is 'pass-through'
and the destination Connection Tagging Mode is set to 'Tagged'.
SC ethernet enable: Controls the function of the sector controller Ethernet port for
group multicast traffic.
Enabled (
): Broadcast and multicast traffic received from subscribers is forwarded
over the sector controller Ethernet port.
Disabled (
): Broadcast and multicast traffic received from subscribers is not
forwarded over the sector controller Ethernet port.
SS To SS multicast enable:
Enabled (
): Broadcast and multicast traffic received from subscribers is forwarded
over the wireless interface to all subscribers associated with the group.
Disabled (
): Broadcast and multicast traffic received from subscribers is not
forward over the wireless interface.
Wireless Traffic Parameters
Changes to these settings affect the CIR and PIR for all groups and connections on the
wireless link.
Group QoS Level: This is the approximate CIR for downlink broadcast and multicast
traffic belonging to this group. This value represents a range of CIR.
It is strongly recommended to calculate the Group QoS Level using the Redline AN-80i
PMP Configuration Tool. To set this value without using the tool, first identify the
member wireless link operating at the lowest UBR, and then calculate the Group QoS
Level using the following formula:
Burst Rate - 1.
Note: A zero setting disables all DL broadcast and multicast traffic for this group.
Burst Rate: Enter the uncoded burst rate for downlink broadcast and multicast traffic
belonging to this Group. Use the 'Auto' setting (recommended ) to have the rate selected
automatically based on the current operating conditions. To set this to a fixed value, first
identify the group member having the lowest Max DL Burst Rate setting, and then
calculate the rate using the following formula:
Max DL Burst Rate - 1
Note: Applications requiring a higher broadcast or multicast rate (e.g., video) may use a
higher setting at the risk of less reliable retransmissions.
Group PIR: Set the PIR for downlink broadcast and multicast traffic belonging to this
group. A single PIR setting is applied for each group. When adaptive modulation is
enabled, automatic adjustments to the modulation/coding will result in relative changes
to the PIR of all groups and connections on that wireless link.
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