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7.5.4.3.5
Configuration | WAN
The nested QoS, Compression, and Encryption pages are accessible only to
Admin users and when you install and enable the optional IP Packet Processor
card. See Sect. 7.5.3.1 for complete details about using conditional access
pages.
Click the QoS, Compression, or Encryption tab to continue.
Configuration | WAN | QoS
DISABLED QOS:
The 'Configuration | WAN | QoS' page is viewable only when QoS is enabled for operation.
When you disable QoS and you select the nested QoS tab, in place of a 'populated' page, a
screen is displayed as shown in Figure 7-24.
Click on the IP hyperlink to return to Figure 7-16 to configure QoS.
ENABLED QOS:
When you enable QoS, the appearance of this page depends on the active mode of QoS
operation. The active mode appears at the upper left-hand page corner, below the nested
QoS menu tab:
•
Max/Priority Mode or Min/Max Mode (see Figure 7-25)
•
DiffServ Mode (see Figure 7-26)
Note that IP is a hyperlink that provides direct navigation to this configuration page.
Segmentation and Reassembly (SAR)
This section is identical for the "Max/Priority," "Min/Max," and "DiffServ" pages.
Packet Segmentation and Reassembly (SAR) is an adaptive process; it will trigger only if the
packet latency exceeds the threshold value (default to 25 msec). SAR is needed, when
running small-speed (<700 kbps) links, to keep latency and jitter within specifications (25
msec latency/10 msec jitter) when the lower priority queue contains large packets.
Use the drop-down list to select SAR as Disable or Enable.
Click [Submit] to save.
Ethernet-based Remote Product Management
Figure 7-24. Configuration | WAN | QoS Page (Disabled)
CDM-425 Advanced Satellite Modem
7–47
Revision 0
MN-CDM-425
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