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Interface statistics meaning

Premdeep Banga
Level 7
Level 7

Hi Everyone,

I have a simple question that I need supporting documation for.

On ASA's when we do 'show interface' for a gig interface, we can get any among two,

input queue (blocks free curr/low): hardware (255/230)

output queue (blocks free curr/low): hardware (255/0)

OR

input queue (curr/max packets): hardware (0/7)

output queue (curr/max packets): hardware (0/13)

cur/low I suppose when we have underruns and overruns going on.

What i want to know is the meaning of the output. In case of curr/max its very clear.

input queue (curr/max packets): hardware (0/7)

output queue (curr/max packets): hardware (0/13)

Above means (correct me if I am incorrect), there are Zero packets currently in input queue, and 7 were the max packets seen at one time. For output queue, zero are the current packets in ouput queue and 13 were max that were seen in output queue. This is documented.

But I could not find an explaination for,

input queue (blocks free curr/low): hardware (255/230)

output queue (blocks free curr/low): hardware (255/0)

How should I interpret it? I need supporting documentaion please.

Regards,

Prem