QoS max-reserved-bandwidth

When configuring CBWFQ and LLQ, the maximum configurable bandwidth for such QoS mechanisms is 75% by default. This leaves 25% for other types of overhead traffic, which will match the class-default class, such as routing protocols and Layer 2 control traffic.

This value can be changed using the max-reserved-bandwidth percent command.

According to Cisco, this command has been deprecated and has been replaced by a modular QoS CLI (MQC) command.

Links:

https://forum.networklessons.com/t/introduction-to-qos-quality-of-service/1703/58?u=lagapides

https://www.cisco.com/c/en/us/td/docs/ios/qos/command/reference/qos_book/qos_m1.html#wp1054626

https://www.cisco.com/c/en/us/td/docs/ios/ios_xe/qos/configuration/guide/convert/qos_mqc_xe/legacy_qos_cli_deprecation_xe.html#wp1099284

https://www.cisco.com/en/US/docs/ios/12_0t/12_0t5/feature/guide/cbwfq.html#wp25467

https://www.cisco.com/c/en/us/support/docs/asynchronous-transfer-mode-atm/permanent-virtual-circuits-pvc-switched-virtual-circuits-svc/10466-max-reserved.html

https://community.cisco.com/t5/routing/cbwfq-llq-bandwidth-allocation-question-please-help/td-p/1160163

https://networklessons.com/quality-of-service/qos-llq-low-latency-queueing-cisco-ios/