[j-nsp] MX and microbursting...

[Chris Evans]

I assume you have queuing cards to do this? My understanding is that you
need Q or trio cards to do basic traffic shaping.
On Apr 11, 2011 5:28 PM, "Derick Winkworth" <dwinkworth at att.net> wrote:
> We've done that.  Its the rx-ring on the controller in the NPE-G2.  That
is not
> tunable.  A show controller indicates we are basically microbursting 128
or more
> packets at a time (faster than the next cycle to pull packets off the
ring).
>
>
>
>
> Increasing the permanent buffers and the hold-queue definitely reduced the

> number of dropped packets significantly, but still over the last 8 hours
> (business day) I see about 10k drops.  Granted, its over 1.2 billion
packets.  I
> just don't like seeing 10k drops during the business day.
>
> I will apply traffic-shaping as per previous post.
>
>
>
> ________________________________
> From: Chris Evans <chrisccnpspam2 at gmail.com>
> To: sthaug at nethelp.no
> Cc: juniper-nsp at puck.nether.net
> Sent: Mon, April 11, 2011 3:15:59 PM
> Subject: Re: [j-nsp] MX and microbursting...
>
> You can adjust buffers on the 7200.  It is not an interface parameter tho.
> On Apr 11, 2011 2:56 PM, <sthaug at nethelp.no> wrote:
>>> {master}
>>> show configuration class-of-service fragmentation-maps
>>> DO_NOT_FRAG_RT-768
>>> forwarding-class {
>>> RT {
>>> no-fragmentation;
>>> }
>>> BE {
>>> fragment-threshold 768;
>>> }
>>> SG {
>>> fragment-threshold 768;
>>> }
>>> }
>>
>> Eh? He said GigE. According to
>>
>>
>
http://www.juniper.net/techpubs/en_US/junos10.0/information-products/topic-collections/config-guide-services/fragmentation-maps-edit-cos.html
>
>>
>> fragmentation-maps is for link service IQ interfaces only.
>>
>> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
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