User's Manual

EnRoute50x/51x User’s Guide

TR0153 Rev. D2

100

For rate reservations to be enforced, a rate limit must be set for the traffic type that

the reservation is made for. Setting a rate limit for a broader traffic type, of which the

one the reservation is made for is a subset, is also acceptable. For example, when

making a rate reservation for voice traffic from wlan1 to mesh0

(„out.mesh0.wlan1.vo.reserve‟), a limit must be set with „out.mesh0.limit‟,

„out.mesh0.wlan1.limit‟, or „out.mesh0.wlan1.vo.limit‟.

Rate reservations guarantee bandwidth for a particular traffic type, but if no such traffic is

present, the bandwidth reserved will be returned to the pool of available bandwidth for other

traffic types to use. The points at which rate reservations can be made are shown in Figure 46.

These points are similar to where rate limits can be placed, except that rate reservations

require both an input and output interface, whereas rate limits can be made without specifying

an input interface.

mesh0local wlan1 wlan2 wlan3 wlan4eth0

mesh0 wlan1 wlan2 wlan3 wlan4eth0

Input

Output

QOS

QoS Control Point

Figure 46. Quality of Service rate reservation control points

All rate reservation parameter values are in kbps. If no rate reservation parameter is

set, rate reservation will be disabled for that interface or interface and traffic

combination.

A rate reservation, which guarantees a certain amount of bandwidth, can be made for traffic

that enters the EnRoute500 through a particular interface and exits it through another

interface. Rate reservations can also be set based on traffic type through an interface. Default