[j-nsp] Data Plane Memory in JUNOS 10.3R1.9

[Rob Cameron]

Its memory that is preallocated to enhance performance and prevent
fragmentation. Ideally there would be knobs to turn features on an off to
reduce memory utilization. Its something that is being considered but
nothing has been decided upon.

Rob Cameron
Manager Technical Marketing Engineering ­ Juniper Networks SRX


On 11/23/10 8:35 AM, "Lawrence Wong" <lawrencewong72 at yahoo.com> wrote:

>Thanks Rob.
>
>How about for the "IDP data plane memory"? Is it preallocated as well?
>
>>> root> show security idp memory
>>>
>>>
>>>    IDP data plane memory statistics:
>>>
>>>  Total IDP data plane memory : 204 MB
>>>                         Used : 31 MB ( 31744 KB ) ( 15.20%)
>>>                    Available : 173 MB ( 177152 KB ) ( 84.80%)
>
>Seems like a big waste if the box is running in packet mode and/or IDP is
>not 
>enabled.
>
>Is the 204 MB of memory really used/reserved or is it more of a
>placeholder on 
>the max available to be used?
>
>Regards,
>
>
>
>----- Original Message ----
>From: Rob Cameron <rcameron at juniper.net>
>To: Lawrence Wong <lawrencewong72 at yahoo.com>; "EXT - xmin0s at gmail.com"
><xmin0s at gmail.com>
>Cc: "juniper-nsp at puck.nether.net" <juniper-nsp at puck.nether.net>
>Sent: Mon, November 22, 2010 8:26:59 PM
>Subject: Re: [j-nsp] Data Plane Memory in JUNOS 10.3R1.9
>
>All of the memory is preallocated and as of today its default usage can
>not be decreased. 
>
>Rob Cameron
>Manager Technical Marketing Engineering ­ Juniper Networks SRX
>
>
>On 11/21/10 5:47 PM, "Lawrence Wong" <lawrencewong72 at yahoo.com> wrote:
>
>>Hi Tim,
>>
>>Thanks, but nope, no effect. :(
>>
>>Best regards,
>>
>>
>>----- Original Message ----
>>From: Tim Eberhard <xmin0s at gmail.com>
>>To: Lawrence Wong <lawrencewong72 at yahoo.com>
>>Cc: juniper-nsp at puck.nether.net
>>Sent: Mon, November 22, 2010 1:43:44 AM
>>Subject: Re: [j-nsp] Data Plane Memory in JUNOS 10.3R1.9
>>
>>Any change after disabling IDP all together?
>>
>>set system processes idp-policy disable
>>
>>-Tim Eberhard
>>
>>On Sun, Nov 21, 2010 at 7:14 PM, Lawrence Wong <lawrencewong72 at yahoo.com>
>>wrote:
>>> Hi everyone,
>>>
>>> I'm currently testing out a J4350 in my lab and it's running on the
>>>latest
>>> 10.3R1.9.
>>>
>>> I noticed that after even I've configured the J4350 to run in Packet
>>>Mode
>>> (Security deleted and MPLS enabled and configured), the IDP modules
>>>seems to 
>>be
>>> taking up between 31MB - 204MB of data plane memory.
>>>
>>> root> show security idp status
>>> State of IDP: Disabled,
>>>
>>> Packets/second: 0               Peak: 0
>>> KBits/second  : 0               Peak: 0
>>> Latency (microseconds): [min: 0] [max: 0] [avg: 0]
>>>
>>> Packet Statistics:
>>>  [ICMP: 0] [TCP: 0] [UDP: 0] [Other: 0]
>>>
>>> Flow Statistics:
>>>  ICMP: [Current: 0] [Max: 0 ]
>>>  TCP: [Current: 0] [Max: 0 ]
>>>  UDP: [Current: 0] [Max: 0 ]
>>>  Other: [Current: 0] [Max: 0 ]
>>>
>>> Session Statistics:
>>>  [ICMP: 0] [TCP: 0] [UDP: 0] [Other: 0]
>>>  Policy Name : none
>>>
>>> root> show security idp memory
>>>
>>>
>>>    IDP data plane memory statistics:
>>>
>>>  Total IDP data plane memory : 204 MB
>>>                         Used : 31 MB ( 31744 KB ) ( 15.20%)
>>>                    Available : 173 MB ( 177152 KB ) ( 84.80%)
>>>
>>>
>>> Does anyone know how I can really "remove" the IDP modules and free up
>>>data
>>> plane memory?
>>>
>>>
>>> At the same time, I also noticed that the data plane memory is
>>>currently set 
>>at
>>> 576MB unlike earlier JUNOS (non-ES) 9.3 versions whereby memory was
>>> reported/used as a lump sum and not specifically broken down.
>>>
>>> Routing Engine status:
>>>    Temperature                 26 degrees C / 78 degrees F
>>>    CPU temperature             41 degrees C / 105 degrees F
>>>    Total memory              2048 MB Max  1434 MB used ( 70 percent)
>>>      Control plane memory    1472 MB Max   927 MB used ( 63 percent)
>>>      Data plane memory        576 MB Max   507 MB used ( 88 percent)
>>>
>>>
>>>
>>> Would it be possible to increase the amount of data plane memory
>>>allocated?
>>>
>>>
>>> TIA!
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>>>
>>
>>
>>
>>      
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