Details congestion avoidance mechanisms that manage queue buildup and packet drops. It covers queuing modes, tail drop, dual queue limits, fair VOQ, RED, ECN, and VOQ watchdog configuration.
Congestion Avoidance
Introduces congestion avoidance mechanisms that manage queue buildup, reduce packet loss, and improve traffic handling through RED, tail drop, ECN, fair VOQ, and VOQ watchdog capabilities.
Queuing modes
Selecting the appropriate queuing mode lets you balance traffic-class isolation against logical-interface scale and is a mandatory first step before you apply any interface-level QoS policy.
Queuing policy for main interfaces
After you set the chassis to 8xVOQ or 4 xVOQ, every main interface automatically receives the default traffic-class queue hierarchy.
Queuing policy behavior on subinterfaces
Details how queuing policies behave on subinterfaces, including supported policy actions, queue handling, and operational considerations for applying QoS controls at subinterface level.
Congestion detection and handling
Outlines congestion detection and handling methods that monitor queue behavior, identify congestion conditions, and apply queue management actions to maintain traffic performance.