Cerberus ADSL2+ Wi-Fi (P 6331-5)
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Max Rate
– This field is applicable for the HTB Queue Discipline and Low Latency Queue
Discipline, both are rate-based shaping algorithms.
HTB Queue Discipline
– The hierarchical token bucket queue discipline is a rate-based
shaping algorithm. This algorithm rate shapes the traffic of a class over a specific interface. All
CoSx traffic uses a specific rate to which data will be shaped. For example: If CoS1 is
configured to 100Kbps then even if 300Kbps of CoS1 data is being transmitted to the interface
only 100Kbps will be sent out.
Low Latency Queue Discipline
– This is similar to the above algorithm except that CoS1 is
not rate limited. So in the example above CoS1 data is not rate limited to 100Kbps but instead
all 300Kbps is transmitted. The side effect is that a misconfigured stream can potentially take
all bandwidth.
PRIOWRR
– This is a priority based weighted round robin algorithm operating on CoS2-CoS6.
CoS1 queues have the highest priority and are not controlled by the WRR algorithm. This is
similar to the Low Latency Queue discipline, except that PRIOWRR is packet-based instead of
rate-based.
QoS / Policy Routing Configuration
The Policy Routing Configuration enables you to configure policy routing and QoS.
Ingress Interface
– The incoming traffic interface for a Policy Routing rule. Selections include
LAN interfaces, WAN interfaces, Locally generated (traffic), and not applicable. Examples of
Locally generated traffic are: voice packets, packets generated by applications such as DNS,
DHCP, etc.
Destination Interface
– The outgoing traffic interfaces for a Policy Routing rule. Selections
include LAN Interfaces and WAN interfaces.
DiffServ Code Point
– The diffServ code point (DSCP) field value ranges from 1 to 255. This
field cannot be configured alone, additional fields like IP, Source MAC, and/or Ingress
Interface should be configured.
Class of Service
– The selections are (in the order of priority): CoS1, CoS2, CoS3, CoS4,
CoS5, CoS6, and N/A.
Source IP
– The IP address of the traffic source.
Mask
– The source IP Netmask. This field is required if the source IP has been entered.
Destination IP
– The IP address of the traffic destination.
Mask
– The Netmask of the destination. This field is required if the destination IP has been
entered.
Summary of Contents for Cerberus ADSL2+ Lite
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