[rrd-users] Re: Cisco 677i-DIR (cbos 2.4.2)

[Paul Pot]

Hi Kyrre,

snmpwalk will return the whole snmp table. snmpwalk will start from a top-level
oid and will walk down until the tree is exhausted, that's why you get the 45
lines.

You will need to pick the proper line of the snmpwalk for the related interface
and do single snmpgets using the complete oid.

Example

snmpwalk ciscobox community (snippet)

system.sysDescr.0 = Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-IOS56I-L), Version 12.1(5)T,  RELEASE SOFTWARE
(fc1)
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Sat 11-Nov-00 07:45 by ccai
system.sysObjectID.0 = OID: enterprises.9.1.154
system.sysUpTime.0 = Timeticks: (5987166) 16:37:51.66
system.sysContact.0 =
system.sysName.0 =
system.sysLocation.0 =
system.sysServices.0 = 78
system.sysORLastChange.0 = Timeticks: (0) 0:00:00.00
interfaces.ifNumber.0 = 19  <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< number of interfaces
in the box

next, you will see several lists of snmp oid per interface. Below you will find
the most important ones (example)

interfaces.ifTable.ifEntry.ifDescr.1 = Ethernet0
interfaces.ifTable.ifEntry.ifSpeed.1 = Gauge: 10000000
interfaces.ifTable.ifEntry.ifAdminStatus.1 = up(1)
interfaces.ifTable.ifEntry.ifOperStatus.1 = up(1)
interfaces.ifTable.ifEntry.ifInOctets.1 = 867559
interfaces.ifTable.ifEntry.ifOutOctets.1 = 159665

So, use an snmpwalk to your device. Search for the interface names you want to
monitor (Ethernet0 in this example). Look for the number on the
interfaces.ifTable.ifEntry.ifDescr line (in our case 1) and then do an snmpget
device community interfaces.ifTable.ifEntry.ifInOctets.1 and
interfaces.ifTable.ifEntry.ifOutOctets.1

Please note that the numbers sampled are octets (bytes) so in order to display
bits, you will have to multiply by 8.

And please.... change the default communities 'public and private' to something
else.........

hth
paul
*speaking for himself












"Kyrre Baker" <"kyrre+lists"@dvdkb.net> on 09-08-2001 05:39:04

To:   "RRD users" <rrd-users at list.ee.ethz.ch>
cc:    (bcc: Paul Pot)

Subject:  [rrd-users] Cisco 677i-DIR (cbos 2.4.2)




I want to "loose" the MRTG stuff and generate the data pure "RRD +
PHP". The only problem I`ve got is that i don`t know the OID to use
for my Cisco 677i-DIR (cbos 2.4.2).

Today i use (via MRTG) >> 2:public at cisco_gw << but an snmpwalk on "2"
here gives me to many lines.

snmpget cisco_gw public 2:
Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
Failed object: interfaces

snmpwalk cisco_gw public 2:
   gives 45 lines with different data.

I want to graph the incomming + outgoing traffic on wan0-0

Anyone knows what to use?

--
Kyrre Baker
<URL: http://mrtg.dvdkb.net/ >

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