SRX

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Ask questions and share experiences about the SRX Series, vSRX, and cSRX.

  • 1.  SRX 650 Queries

    Posted 09-17-2009 03:02

    Hi All,

     

    I have few queries on SRX 650.

    1. Why SRX650 CPU usage always 85-95% and memory 65-75%?
    2. When I enable UTM policies internet surfing gets dead slow. Why?

    3. How to Block Application sets- Like Peer-peer sites,KAAZAA,edonkey,limewire.
    4. Logging - How can I get detailed logging for ip based website access

     

    Please if anyone can ans my queries. I will be greatful to u.




  • 2.  RE: SRX 650 Queries
    Best Answer

     
    Posted 09-17-2009 07:25

    1. How are CPU and memory utilization calculated in a Branch SRX box?

    CPU:
    http://kb.juniper.net/index?page=content&id=KB13266


    (note that signin is necessary for these links to work... if you just follow the link you'll get an error if you're not signed in)

    Short answer: there are multiple cores, and the overall utilization is additive.

     

     

    Memory:

    http://kb.juniper.net/index?page=content&id=KB14585

     

    Remember that JUNOS pre-allocates memory on bootup, so 'utilization' always shows as high because so much memory is allocated to session tables and the like, whether those tables are full or not. This allows performance to scale in a linear, predictable fashion, without having periodic system pauses while additional memory is requested to accomodate process requirements.