The 3 actually refers to the interface number on the device. The TC has several interfaces. These numbers vary depending on how many ARC and DSP cards you have in it. If you are using Linux with UC Davis' SNMP software, also called NetSNMP (the name varies depending on the version), you can type "snmpwalk xxx.xxx.xxx.xxx community" to see the interface list. Interfaces 1-11 below are the consoles and ethernets on the ARCs & NMC and then it starts at 1257 for the modems in DSP cards. Each interface has a unique ID assigned to it. The interface gives you an easy way to get different information off the device. If you know the obJectID (in this case Interfaces.ifTable.ifEntry.ifIndex) and the interface number you can determine the value with SNMP software to talk to the device. interfaces.ifTable.ifEntry.ifIndex.1 = 1 interfaces.ifTable.ifEntry.ifIndex.2 = 2 interfaces.ifTable.ifEntry.ifIndex.3 = 3 interfaces.ifTable.ifEntry.ifIndex.4 = 4 interfaces.ifTable.ifEntry.ifIndex.5 = 5 interfaces.ifTable.ifEntry.ifIndex.6 = 6 interfaces.ifTable.ifEntry.ifIndex.7 = 7 interfaces.ifTable.ifEntry.ifIndex.8 = 8 interfaces.ifTable.ifEntry.ifIndex.9 = 9 interfaces.ifTable.ifEntry.ifIndex.10 = 10 interfaces.ifTable.ifEntry.ifIndex.11 = 11 interfaces.ifTable.ifEntry.ifIndex.1257 = 1257 interfaces.ifTable.ifEntry.ifIndex.1258 = 1258 interfaces.ifTable.ifEntry.ifIndex.1259 = 1259 interfaces.ifTable.ifEntry.ifIndex.1260 = 1260 interfaces.ifTable.ifEntry.ifIndex.1261 = 1261 interfaces.ifTable.ifEntry.ifIndex.1262 = 1262 interfaces.ifTable.ifEntry.ifIndex.1263 = 1263 interfaces.ifTable.ifEntry.ifIndex.1264 = 1264 interfaces.ifTable.ifEntry.ifDescr.1 = Loopback Driver interfaces.ifTable.ifEntry.ifDescr.2 = Loopback Driver interfaces.ifTable.ifEntry.ifDescr.3 = Ethernet Driver interfaces.ifTable.ifEntry.ifDescr.4 = Ethernet Driver interfaces.ifTable.ifEntry.ifDescr.5 = GWC Modem Driver interfaces.ifTable.ifEntry.ifDescr.6 = GWC Modem Driver interfaces.ifTable.ifEntry.ifDescr.7 = GWC Modem Driver interfaces.ifTable.ifEntry.ifDescr.8 = GWC Modem Driver interfaces.ifTable.ifEntry.ifDescr.9 = GWC Modem Driver interfaces.ifTable.ifEntry.ifDescr.10 = GWC Modem Driver interfaces.ifTable.ifEntry.ifDescr.11 = GWC Modem Driver interfaces.ifTable.ifEntry.ifDescr.1257 = GWC Modem Driver interfaces.ifTable.ifEntry.ifDescr.1258 = GWC Modem Driver Bill Dunn ----- Original Message ----- From: <drernst@kirkwood.hoosier.net> To: "Discussion relating to the 3Com/US Robotics Total Control modem systems." <usr-tc@mailman.xmission.com> Sent: Monday, April 21, 2003 9:47 AM Subject: Re: [USR-TC] Monitor ethernet bandwidth on hiperarc with MRTG? I don't know the entire MIB (or, even more embarrassing, I don't know if I know the entire MIB!), but we're getting this info using mrtg configured as follows: Target[xxx.yyy.zzz.www.3]: 3:cstring@xxx.yyy.zzz.www In other words, '3' appears to be the MIB you are looking for. I think we got it by copying what a lot of our other equipment does, and it does seem to give the expected result. :) David Ernst HoosierNet, Inc. On Sat, 19 Apr 2003, Giovanni Navarrette wrote:
Hi everyone -
I've got a question that I'm guessing has been answered, but I haven't been able to find in the archives or on the net. Maybe someone can point me in the right direction...
Does anyone know the MIB for monitoring bandwidth on the eth:1 interface for a hiperarc? The closest one I've found is 1.3.6.1.2.1.2.2.1.16.3, which is "the total number of octets trasmitted out the given interface, including framing characters". Not exactly what I'm looking for. If I poll that I get the number of octets its outout, but when I monitor the hiperarc with a program like Solarwinds's Bandwidth Monitor, I get the in/out kbits per sec usage. Thats what I'd like to get on an MRTG page...
Do I need to writeup a script that would poll it once a second, 2 times, subtract the 2 figures to get the difference (which would be number of octets in that one second), then that would be my bytes per second transferred outbound and use that?
Thanks for ya time, have a g'day.
- ------------------------------------------ Giovanni Navarrette USLink Internet Systems Administrator e-Mail: gio@uslink.net
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