[DO NOT MERGE] Update openconfig-qos-interfaces.yang with aged-packets, aged-bytes counters #913
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Summary
Enhance qos stats by additional counter for packet droped due to timeout (aged).
Description
Current drop couter is defined as:
Condifering overruning of queue is situatin when there is no available buffer space for packet.
However when there is available buffer space but queue service (de-queue) rate is too-little| next to null, packet would stay in queu for seconds or mitutes. What consumes resources and provides no benefits. Hence aging is purging this packets for NOT overrun queues.
###Vendor implementation
Aging is commonly implemented, but counters are inconsistently exposed to UI
Arista: “show platform fap voq delete” (arista do not provide aggregated per egress interface view)
Cisco:
Juniper:
Nokia: