Manual

The 2Mbps service rate assumed in the above scenario offers flexibility and a significant bit rate for important

applications. The 2Mbps service rate can also offer value if tht total upstream consistent throughput is as low as

2Mbps. However, not all of the service rate would be configured in this instance. The recommended practice (and

Cisoo ISR configuration default) is to limit traffic with preferential treatment to 75% of the total traffic sent. This

assists applications with best-effort service in functioning properly, and can assist important applications

inadvertenly missed in the traffic classes offered preferential treatment to function properly.

Note: In the instance where less than 2.7Mbps total LTE upstream bit rate is consistently available, the service

rate used by the ISR would be reduced to a maximum of 75% of the total LTE upstream bit rate. As an example, if

there was 2Mbps total upstream consistent LTE bit rate, the service rate leveraged would be 1.5Mbps.

Less-Than-Optimal Deployment Scenario, Configuration and Show Output

The following scenario is a less-than optimal deployment, where a minimal upstream bit rate is achievable, and the

lower service rate (512Kbps) is chosen for an LTE connection with QoS. The detailed configuration examples are

based on this scenerio, as testing with the configurations was highlighted to ensure proper service can be provided

to key applications at these lower bit rates. The scenario is applicable down to 750Kbps of total consistently

achievable upstream LTE bit rate.

The diagram below depicts the domain of LTE QoS (from the ISR to the LTE MPN anchor point). The line shown

in red highlights the tunnel if the optional DMNR (native routing) MPN service is leveraged. The addressing shown

is from the testing associated with the complete ISR configurations on the following pages.