Elements / Storage

FrontDropQueue

stores packets in drop-from-front FIFO queue

SYNOPSIS§

FrontDropQueue
FrontDropQueue(CAPACITY)

Batching: Batching natively supported
Ports: 1 input, 1-2 outputs

DESCRIPTION§

Stores incoming packets in a first-in-first-out queue. Drops the head packet before inserting the incoming packet if the queue already holds CAPACITY packets. The default for CAPACITY is 1000.

ELEMENT HANDLERS§

• length (read-only) — Returns the current number of packets in the queue.
• highwater_length (read-only) — Returns the maximum number of packets that have ever been in the queue at once.
• capacity (read/write) — Returns or sets the queue's capacity.
• drops (read-only) — Returns the number of packets dropped by the Queue so far. Dropped packets are emitted on output 1 if output 1 exists.
• reset_counts (write-only) — When written, resets the drops and highwater_length counters.
• reset (write-only) — When written, drops all packets in the Queue.

SEE ALSO§

Queue, SimpleQueue, MixedQueue, RED

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