Cisco 75xx CPU Monitoring and VIP's..

Cisco 75xx CPU Monitoring and VIP's..

Post by Howard Leadmo » Mon, 21 Jul 2003 00:54:55



This is probably something someone has done before, so figured I would ask
before I went on the research mission from hell.

I know the normal call to just monitor the CPU on like a 7206 or other
single processor routers.  

What I am interested in doing is getting a measurment on my MRTG graphs of
the CPU usage of the two RSP's, and also the VIP's that are in the 7500's I
now have.

Can anyone fill me on how to do this, or possibly post a sample config
entry that could be used to perform this on my routers??

Thanks...

-Howard

 
 
 

Cisco 75xx CPU Monitoring and VIP's..

Post by Major Shaff » Mon, 21 Jul 2003 09:33:53




Quote:>This is probably something someone has done before

yes.

Quote:>Can anyone fill me on how to do this, or possibly post a sample config
>entry that could be used to perform this on my routers??

Cricket's genRtrConfig finds these OIDs automatically for me.

From the Defaults file provided by genRtrConfig:

# VIP CPU datasources
OID             cpmCPUTotal5secRev      1.3.6.1.4.1.9.9.109.1.1.1.1.6
OID             cpmCPUTotal1minRev      1.3.6.1.4.1.9.9.109.1.1.1.1.7
OID             cpmCPUTotal5minRev      1.3.6.1.4.1.9.9.109.1.1.1.1.8

datasource      VIPcpu5sec
        rrd-ds-type     =       GAUGE
        ds-source       =       snmp://%snmp%/cpmCPUTotal5secRev.%cpu%
datasource      VIPcpu1min
        rrd-ds-type     =       GAUGE
        ds-source       =       snmp://%snmp%/cpmCPUTotal1minRev.%cpu%
datasource      VIPcpu5min
        rrd-ds-type     =       GAUGE
        ds-source       =       snmp://%snmp%/cpmCPUTotal5minRev.%cpu%

Based on my experience VIP cpu numbers are not always 1,2,3,... Even
with just three VIPs I had 19, 21, 24 or some such.  Also they change
at reboot.

 
 
 

1. Cisco 75xx, VIP vs. CX cards

I've been looking over the Cisco web page and am just trying to learn a
bit more about the 75xx series.

What would the difference be in a router configured with 2 HIP cards and
a FEIP card vs. having them both on a VIP2 card?  Do the VIP2 + PA's
provide more distributed processing and handle the load better?  Are there
combinations of PA's that would NOT be recommended?  Specifically I was
looking at a PA-2H and a PA-FE-TX on a VIP2-40 in a 7507 with dual RSP4's.

Also, I've heard that there are problems with the Rev. A PA-H boards and
that the rev B version corrects the problems, but no such fix will be
available for the PA-2H until Q1 '98.  Is this date still holding?  Are
there any workarounds if a customer receives a PA-2H?

Will the combination of those PA's overtax the VIP2 card at full load?

I understand the basics of the configuration, I just don't understand what
combinations of cards will cause too much load or aren't recommended etc..

Any feedback would be appreciated.  Please send me a copy directly via
mail so that I don't miss it.

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