Re: Network equipments process utilization

2009-02-10 Thread Elmar K. Bins
li...@memetic.org (Adam Armstrong) wrote:

> >>>   CPU load _always_ jumps to 100% for short periods of
> >>>   time - BGP needs something calculated ;-) I get interested
> >>>   whenever CPU load _stays_ high
> >>>  
> >>Yeah - Cisco would like to know why as well:
> >>http://www.cisco.com/web/about/ac50/ac207/crc_new/university/RFP/rfp07026.html
> >>
> >
> >I know ;-)
> >
> >But: This is not a churn problem, it's a problem of slow CPUs in
> >allegedly big-and-fast boxes. I'd like a NPE-G2 blade for my
> >76's, as RP. Still, this is getting off-topic.
> >  
> 
> The MSFC4 in the RSP720 has a 1.2GHz 8548 PPC whereas the NPE-G2 has a 
> 1.67GHz 7448 PPC.
> 
> I'd guess the performance isn't all that far apart, especially as the 
> MSFC4's processor isn't doing any forwarding.

That's why I wrote "with SUPs" (and not RSPs). RSP is fairly new, and
they got it right this time.





Re: Network equipments process utilization

2009-02-10 Thread Adam Armstrong

Elmar K. Bins wrote:

h...@efes.iucc.ac.il (Hank Nussbacher) wrote:

  

 - slow-CPU boxes like everything Cisco with SUPs, since the
   CPU load _always_ jumps to 100% for short periods of
   time - BGP needs something calculated ;-) I get interested
   whenever CPU load _stays_ high
  

Yeah - Cisco would like to know why as well:
http://www.cisco.com/web/about/ac50/ac207/crc_new/university/RFP/rfp07026.html



I know ;-)

But: This is not a churn problem, it's a problem of slow CPUs in
allegedly big-and-fast boxes. I'd like a NPE-G2 blade for my
76's, as RP. Still, this is getting off-topic.
  


The MSFC4 in the RSP720 has a 1.2GHz 8548 PPC whereas the NPE-G2 has a 
1.67GHz 7448 PPC.


I'd guess the performance isn't all that far apart, especially as the 
MSFC4's processor isn't doing any forwarding.


adam.



Re: Network equipments process utilization

2009-02-10 Thread Elmar K. Bins
h...@efes.iucc.ac.il (Hank Nussbacher) wrote:

> >  - slow-CPU boxes like everything Cisco with SUPs, since the
> >CPU load _always_ jumps to 100% for short periods of
> >time - BGP needs something calculated ;-) I get interested
> >whenever CPU load _stays_ high
> 
> Yeah - Cisco would like to know why as well:
> http://www.cisco.com/web/about/ac50/ac207/crc_new/university/RFP/rfp07026.html

I know ;-)

But: This is not a churn problem, it's a problem of slow CPUs in
allegedly big-and-fast boxes. I'd like a NPE-G2 blade for my
76's, as RP. Still, this is getting off-topic.

Elmar.



Re: Network equipments process utilization

2009-02-10 Thread Hank Nussbacher

At 09:39 AM 10-02-09 +0100, Elmar K. Bins wrote:


  - slow-CPU boxes like everything Cisco with SUPs, since the
CPU load _always_ jumps to 100% for short periods of
time - BGP needs something calculated ;-) I get interested
whenever CPU load _stays_ high


Yeah - Cisco would like to know why as well:
http://www.cisco.com/web/about/ac50/ac207/crc_new/university/RFP/rfp07026.html

:-)
-Hank




Re: Network equipments process utilization

2009-02-10 Thread Elmar K. Bins
Good morning (from here),

lion...@samsung.com (???×?) wrote:

> I wonder which percentage is good level of CPU and Memory util of network 
> equipment ?
> In my case, I try to keep under 30% cpu util and 70% memory util. My most 
> equipment are Cisco product. 
> I have no technical reference about that, it is just a rule of mine or my 
> predecessor.
> Could you tell me how other operators are doing ? what is your operation 
> baseline ? or is there any guideline about process utilization ?

I'm trying to keep all Cisco equipment idle, if at all possible,
since there may come worse times...

Typical exceptions are

  - software forwarding routers, where CPU load is directly
depending on current traffic levels; should the load stay
above 15-20% all the time, it's time for an upgrade

  - slow-CPU boxes like everything Cisco with SUPs, since the
CPU load _always_ jumps to 100% for short periods of
time - BGP needs something calculated ;-) I get interested
whenever CPU load _stays_ high

  - switches; Cisco switches need like 5% CPU to blink the LEDs ;)


It gets more interested with packet filters and load balancers,
where CPU loads depend on traffic levels and patterns. I try to
keep the baseline between 5 and 10%.

HTH,
Elmar.



Network equipments process utilization

2009-02-09 Thread 정치영
Hi everyone,

I wonder which percentage is good level of CPU and Memory util of network 
equipment ?
In my case, I try to keep under 30% cpu util and 70% memory util. My most 
equipment are Cisco product. 
I have no technical reference about that, it is just a rule of mine or my 
predecessor.
Could you tell me how other operators are doing ? what is your operation 
baseline ? or is there any guideline about process utilization ?

Best regards,
Chiyoung 
=
 Chi-Young Joung
 SAMSUNG NETWORKS Inc.
 Email: lion...@samsung.com
 Tel +82 70 7015 0623, Mobile +82 17 520 9193
 Fax +82 70 7016 0031
=