Comtech EF Data ODM-840 - Manual (Page 129)

ODM/R-840 Outdoor Remote Router Revision 0
Ethernet-based Remote Product Management MN-ODM840
5–41
• Codepoint (DSCP) – This is the Code Point value for the Type of Service (ToS) byte in the IP
header.
The option is provided to configure each queue to one of the following attributes. The
acceptable/valid operating ranges are provided in this section in parentheses, where applicable.
• Service Rate (Kbps) (0.000 / (Tx Data Rate)) – The minimum bandwidth will be served first
among the Assured Forwarding (ASFD) classes in case of bandwidth availability once Class
Selector 7 through Class Selected 1 have been serviced.
• Drop Precedence – ASFD Class 4 through 1 Code Points (b100xx0, b011xx0, b010xx0, and
b001xx0) carry the drop precedence value (xx). In case of network congestion, a Weighted
Random Early Detection (WRED) congestion avoidance algorithm is imposed on these
queues to drop the packets randomly rather than ‘tail drop.’
• Low Drop Precedence (% full) (0‐100) – In case of congestion, the WRED is applied after the
queue depth exceeds the configured percentage value assigned for the Drop Precedence
value b001.
• Med. Drop Precedence (% full) (0‐99) – In case of congestion, the WRED is applied after the
queue depth exceeds the configured percentage value assigned for the Drop Precedence
value b010.
• High Drop Precedence (% full) (0‐99) – In case of congestion, the WRED is applied after the
queue depth exceeds the configured percentage value assigned for the Drop Precedence
value b011.
Set the desired configurations in this section. Click [Submit] to save.
QoS Rules Table (Edit)
This read‐only page section appears when QoS Control Mode = Max/Pri(ority) or Min/Max.
For the ‘Max/Pri(ority)’ page:
For the ‘Min/Max’ page:
The Index column identifies the automatically‐assigned specific rule internal index number. For
description of the remaining items in the QoS Rules Table, see the next section (Add New QoS
Rule).