There is more in the queue and therefore it takes longer for frames to pass
the queue before being put on the wire. If you had a voice packet that
needed to be sent ASAP it would wait longer in the larger queue than  a in a
smaller queue. 

 

 

 

From: [email protected]
[mailto:[email protected]] On Behalf Of Taqdir Singh
Sent: August-22-10 12:19 AM
To: GAURAV MADAN
Cc: [email protected]
Subject: Re: [OSL | CCIE_RS] tx-ring-limit

 

HI gaurav,

 

Please clarify this

 

if size of queue is large why packets have to wait for longer time, could
you please give any example ?

 

On Sat, Aug 21, 2010 at 1:03 PM, GAURAV MADAN <[email protected]>
wrote:

"Tx-ring-limit" is to set the size of hardware queue .
You might be knowing that hardware queue is always FIFO ..

So higher the queue size of h/w queue more time packets have to wait
in this hardware queue before it is put on wire .

take a serial i/f .. issue show controller serial <> and analyse the results
,,

There are 2 values like 1(2) ..
The no. in bracket indicates the queu size of this h/w queue .
and first no. indicates if this interface has any kind of queuing
mechanism enabled or not .


Thnx
Gaurav Madan
CCIE # 23863


On Sat, Aug 21, 2010 at 10:30 AM, Taqdir Singh <[email protected]>
wrote:

> Hi Team,
>
> What does this below ring limit specifies.. i Know its hardware fifo
queue..
> what if I set it to 1 what does it mean ?
> Is there any best practice or any guidelines which should be kept in mind
> while tweaking tx-ring values ?
>
> Router(config-if)#tx-ring-limit ?
>   <1-32767>  Number (ring limit)
> Router(config-if)#tx-ring-limit
> --
> --
> Taqdir Singh
> /Networks / 09911709496
>
> Do today what others won't, so you can live tomorrow as others can't
>

> _______________________________________________
> For more information regarding industry leading CCIE Lab training, please
> visit www.ipexpert.com <http://www.ipexpert.com/> 
>
>




-- 

-- 

Taqdir Singh 

/Networks / 09911709496

 

Do today what others won't, so you can live tomorrow as others can't

 

_______________________________________________
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