Comtech EF Data FX Series Administrator Guide - Manual (Page 66)

Comtech EF Data / Stampede
FX Series Administration Guide - Version 6.1.1 66
Chapter: FX Series Network Settings
Section: Configuring Quality of Service with ACM
MN-FXSERIESADM6 Rev 5
Reserve bandwidth (Kbps):
The data rate that the FX delivers data is the Ethernet frame rate. This parameter sets the
amount of bandwidth that will be held in reserve. The FX will deliver data at the rate read from
the modem minus this rate. This will allow for any mismatch between the Ethernet frame rate,
and the rate that the modem reports.
Clear sky data rate (kbps):
This is the output data rate that will be used if the FX is unable to read a rate from the modem. The
default is the FX licensed rate.
Traffic Control Properties
Queue drain algorithm:
This parameter specifies the drain method for scheduling outbound packets for all Queue definitions.
Strict Priority:
In the Strict Priority Drain algorithm, higher priority queues are depleted before lower priority
queues pass traffic. Traffic is capped at the link rate.
Min-Max:
The drain algorithm is priority based. If there is enough data rate available, each queue will
receive their respective CIR. If there is not sufficient data rate to satisfy all of the requested CIRs,
then traffic will be dropped starting with the lowest priority queue and progressing through the
queues in ascending priority until the requested CIR is met.
When traffic is dropped from queues with the same priority, then each of the equally ranked
queues will have traffic dropped proportionally.
Once all requested CIRs are met, if there is additional data rate that can be filled, it will be
allocated to the queues in order of priority starting with the highest. Each queue is given
additional data rate up to the requested rate, or MIR, whichever is lowest. If there are queues at
the same priority, they are granted additional data rate proportionally.
Packet Compression Settings
Compression method:
Globally specifies the basic method of packet compression and aggregation. If 'disabled'
then the feature is disabled. If L2 Point-to-Point' then compressed aggregated packets
are encapsulated in Ethernet frames and sent directly to the MAC address specified in
the ‘MAC address of L2 peer’ field. If this field is set up then you can enable/disable
packet compression on a per QoS queue basis.
MAC address of L2 peer:
This setting specifies the MAC address of WAN Interface of the FX which will
receive the encapsulated compressed and aggregated packets. The MAC
address must be specified in format xx:xx:xx:xx:xx:xx where each 'xx' is a hex
digit.
NOTE: In a redundant configuration, it is important to configure the
MAC address field of the LAN interface associated with eth3 such that
the primary and secondary FX devices utilize the same MAC address).
MAC address of this device:
This is a ‘display-only’ field that shows the MAC address of the WAN interface
of this device which can be copied and pasted when configuring the L2 Peer.