snmp error checking which field to check?

snmp error checking which field to check?

Post by Mike Holm » Thu, 20 Feb 1997 04:00:00



Hi,

I have a script on a host that checks for In/Out errors on a C2500 &
C4000 router both with IOS 11.0(9)  The fields I am checking are
interfaces.ifTable.ifEntry.ifInErrors.5 & .ifOutErrors this is
returning a value OK.  

The problem is if on the router I do a "clear counters" for all the
interfaces the "show interfaces" reports the In & out as having NO
errors but when I do my snmpget the report shows the old errors value.

Sould I be using a different SNMP field or is the "show interfaces"
report of errors summarizing the other error fields.

thanks in advance

Mike Holmes
-----------------------------------------------
Senior Network Specialist    ND Networks

-------------------------------------------------

 
 
 

snmp error checking which field to check?

Post by Paul J Lustgra » Thu, 20 Feb 1997 04:00:00



>I have a script on a host that checks for In/Out errors on a C2500 &
>C4000 router both with IOS 11.0(9)  The fields I am checking are
>interfaces.ifTable.ifEntry.ifInErrors.5 & .ifOutErrors this is
>returning a value OK.  

>The problem is if on the router I do a "clear counters" for all the
>interfaces the "show interfaces" reports the In & out as having NO
>errors but when I do my snmpget the report shows the old errors value.

>Sould I be using a different SNMP field or is the "show interfaces"
>report of errors summarizing the other error fields.

"clear counters" only clears the values used by "show interfaces".
It specifically does not affect the values reported by SNMP.  Your
script should take two consecutive readings and subtract to get the
differences.  That is the definition of a counter.  It is cumulative.
--
Paul Lustgraaf                    "Change is inevitable.  Progress is not."
Manager of Network Services

Ames, IA  50011                                                 515-294-0324

 
 
 

1. Cisco Price Check / Reality Check

All,

I'm in the process of buying a Cisco 7206 Router for our shop and, frankly,
it looks like it's going to cost me much more than I originally imagined. I
was hoping that someone who knows something about Cisco products could look
over the pricing and features I have been quoted and let me know if it all
smells right. I'm really wondering if I need everything here and if there
are any ways to lower the overall price.

I was quoted by Solunet for the following:

Cisco 7206 Chassis (CISCO7206) - $3,550
7200 Network Processing Engine, 150Mhz (NPE-150) - $3,550
7200 Fast Ethernet Input/Output Controller (C7200-I/O-FE-MII) - $2,130
7200 Series IOS IP Only Feature Set (SF72C-11.2.2) - $2,130
32MB RAM Upgrade (Generic) - $245
7200 I/O PCMCIA Flash Memory, 16MB Option (MEM-I/O-FLC16M) - $781
4-Port Serial Port Adapter (PA-4T) - $3,550
7200 Series InterDomain Routing License (FR-IR72) - $2,414
7200 Series NetFlow License (FR-NF72) - $2,414
7206 Modular Router Base, 6-Slot, SMARTNet M (CON-SNT-7206) - $3,000
ATM CES Port Adapter; 4T1 CES Ports and 1 T3 ATM Port (PA-A2-4T1C-T3ATM) -
$8,520

Total: $32,284

I have particular questions about whether I need the Fast Ethernet version
of the I/O controller, the extra flash memory, the inter-domain routing
license (we're doing BGP), and NetFlow (Can it do anything that MRTG
can't?).

Thanks for your time and help,

Tom Feliz
TST On Ramp, Inc.

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