Hold-Queue Out Configuration Under Gigabit WAN interfaces
We are rolling out Cisco 4000 series routers with Cisco QoS Policies and shaping configured.
As part of the 'standard' configuration, the engineers are applying 'hold-queue 5000 out' under the Gigabit WAN interfaces, whether the link is 10M, 100M or 500M
From what I understand this should not impact traffic flow (RTP in particular) unless congestion occurs or the TX-Ring fills up.
Is this correct? or could it have a negative impact on traffic flow (i.e: introduce latency as it waits for the queue to fill before transmitting)?
Any help appreciated