Radwin Transportation FiberinMotion, Руководство по развертыванию

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FinM Deployment Guide Release 4.5.10 4 ‐ 10
Project Tab Configuring the Radio Network
others, and as such the ethernet network places a tag on each packet representing its priority.
The RADWIN Quality of Service feature (QoS) can work with two different standards of traffic
prioritization: VLAN (IEEE 802.1q/p) and Diffserv (RFC 2475). Each of these standards divides
the priorities differently: VLAN uses 8 levels, while Diffserv uses 64 levels.
RADWIN equipment can recognize these network priority tags, and can place the traffic in
one of 4 different QoS priority levels, as shown in Table 4 ‐ 1 :
That is, if working with the Diffserv standard, traffic tagged with priority levels from 48 to 63
are treated as “Real Time”, those with levels from 47 to 32 are treated as “Near real time”, etc.
The RADWIN Quality of Service feature (QoS) allows you to change which standard priority
level is translated into a priority level used in RADWIN equipment.
Example: If you know your network will have a great deal of higher priority traffic, but you
only want the highest to receive preferential treatment, you can define “Real Time” as
being from 55 to 63, instead of the default values 48 ‐ 63. You must cover all levels, so in
this case, make sure to re ‐ define “Near Real Time” as 32 to 54.
Percentages: You can set each priority level (in the upload and download direction separately)
to take up a certain percentage of the total traffic, so long as that percentage adds up to 100.
MIR: You can also place an absolute maximum limit on the amount of traffic allowed to pass
per priority level, no matter how much traffic comes through.
Setting up QoS
QoS for Transportation FiberinMotion is set up in two phases:
1. Choose the QoS priority standard: Project tab, upper table, QoS Mode
(Choose None, VLAN, or Diffserv)
The lower table will show the default values according to the standard you have chosen.
2. Configure the values for each quality group: Project tab, lower table:
Table 4 ‐ 1: Default priorities and allocation by VLAN vs. Diffserv
QoS Priority Level
Standard Priority
Typical Use
Diffserv VLAN
Real Time 48 ‐ 63 6 ‐ 7
High priority: video conferencing, phone
calls, etc.
Near Real Time 32 ‐ 47 4 ‐ 5
Slightly lower priority than Real Time, but
with high ‐ quality delivery with guaranteed
minimum latency. Streaming video, internet
sites.
Controlled Load 16 ‐ 31 2 ‐ 3
Similar to Best Effort in uncongested
conditions. A very high percentage of
transmitted packets will be delivered
successfully and not exceed the minimum
delay. Does not guarantee minimum latency.
Best Effort 0 ‐ 15 0 ‐ 1 Lowest priority: email, messaging, etc.