04-01-2002 09:08 AM - edited 03-01-2019 09:06 PM
Hi,
has anybody used MRTG to monitor a DS-3 link..I tried using it but i don't get graphs for the traffic on the DS-3 interface.
MRTG says that since its a DS-3 controller its unable to plot the graph.
Any help is appreciated.
regards,
jimmy.
04-01-2002 09:30 AM
You should be able to monitor just about anything that has snmp enabled on it. Try monitoring the interface via its WAN ip. The MRTG documentation explains how to do that
04-02-2002 07:53 AM
The controller shouldn't matter, I monitored a T3 with MRTG and the e-mail from the AT&T engineer was correct just use the IP address, which is what I did.
04-02-2002 08:01 AM
Same here. We're currently monitoring several DS3's with MRTG using IP address. Just make sure you specify the bandwidth when you runn ./configure.
04-02-2002 10:47 AM
Try specifying the interface type as 30.
04-05-2002 01:33 PM
Hi,
I've DS-3 ATM interface that I use MRTG to monitor the traffic with. I've also have 3 PVCs on sub-interfaces on that same DS-3. To monitor the 'whole' DS-3 (which may not have an IP address assigned to it), you have to be able to determine it's 'if-index', ref: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat5000/rel_4_1/mib/getmib.htm#xtocid2401516 . That was the only way I could find out what the if-index was on the 'physical' ATM interface.
This is what my mrtg.cfg file looks like (edited for mass consumption):
#....................................................
Target[123.123.254.1.1]: 1:bonzo@123.123.254.1
MaxBytes[123.123.254.1.1]: 386000
Title[123.123.254.1.1]: 7206 (): ATM4/0
PageTop[123.123.254.1.1]:
System: | 7206 |
Maintainer: | (212) 555-2140 |
Interface: | ATM4/0 (1) |
IP: | () |
Max Speed: | |
386.0 kBytes/s (DS-3 Serial Coax Physical I/F) |
#---------------------------------------------------
Notice the .1 'if-index' after the IP address. Of course, yours will be different. My DS-3 I/F just happened to end up .1 . You will also notice that although I'm monitoring a DS-3 coax pipe, I've limited the actual bandwidth to 386KBs. I actually have two DS-1's and have them mux'd together, with the mux presenting a 'coax DS-3' to the router ATM interface.
Here's one of the 'sub-interface' PVCs that does have an IP address assgined to it:
#----------------------------------------------------Target[123.123.254.1.24]: 24:bonzo@123.123.254.1
MaxBytes[123.123.254.1.24]: 193000
Title[123.123.254.1.24]: 7206 (7206-AT4/0.1): ATM4/0.1
PageTop[123.123.254.1.24]:
System: | 7206 |
Maintainer: | (212)555-2140 |
Interface: | ATM4/0.1 (24) |
IP: | 7206-AT4/0.1 (192.168.76.70) |
Max Speed: | |
193.0 kBytes/s (ATM AAL5) |
#---------------------------------------------------
Notice the .24 index. This PVC rides within the first physical ATM interface. I have two more just like it (different if-indexes), all riding within the ATM pipe. The above config shows bandwidth based on our 'burst' size for the PVC, which is 1.544Mbs or 193KBs.
All this depends on your being able to access the if-index on your router as stated in the html link above.
I hope this helps you on your journey!
04-05-2002 01:34 PM
sorry about the last post, looks like some html got mixed in with it. try and decifer it anyway!
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