[mrtg] Re: VLANS and MRTG
Andres Tong
Andres.Tong at jud.ca.gov
Thu Aug 12 19:47:28 MEST 1999
Michael,
I am assuming that from what you are saying, you would aggregate all
the ports for one VLAN. For example, if I had 5 ports in VLAN7, then I
will aggregate these 5 ports as VLAN7 traffic. Which leads me to
think:
What about broadcast traffic? Since all these 5 ports will see the
same broadcast traffic, wouldn't you incorrectly see 5 times the
amount of broadcast traffic?
-andy
Sr. Technical Analyst/Network Engineer
Judicial Council of California
______________________________ Reply Separator _________________________________
Subject: [mrtg] Re: VLANS and MRTG
Author: "Michael P. Burton" <mpburton at teleport.com> at Internet
Date: 8/11/99 11:40 AM
The "Target" tag allows you to "add" multiple interface stats together
into one graph, by using the "+" sign to seperate them.
For instance:
Target[131.252.1.5.53]: 29:xxx at 131.252.1.5 + 3:xxx at 131.252.1.5 +
5:xxx at 131.252.1.5
Directory[131.252.1.5.53]:coresw
MaxBytes[131.252.1.5.53]: 5000000
Title[131.252.1.5.53]: coresw (): <font color="#6B238E"> <B> Aggregate
Traffic: VLAN 1 </B> </font>
PageTop[131.252.1.5.53]: <H1>Traffic Analysis for <font color="#6B238E">
<B> Aggregate Traffic: VLAN 1 </B> </font>
</H1>
<TABLE>
<TR><TD>System:</TD><TD>coresw in NOC</TD></TR>
<TR><TD>Maintainer:</TD><TD>CNS Net, 725-9565</TD></TR>
<TR><TD>Interface:</TD><TD><font color="#6B238E"> <B> Aggregate
Traffic: VLAN 1 </B> </font> (53)</TD></TR>
<TR><TD>IP:</TD><TD> ()</TD></TR>
<TR><TD>Max Speed:</TD>
<TD>12.5 MBytes/s (propVirtual)</TD></TR>
</TABLE>
-------------------------------
This gives us a picture of aggrate traffic on VLAN1, for instance.
Sorry I wasn't more clear...
Michael
-------------------------------
On Wed, 11 Aug 1999, Phillip Ryker wrote:
:Michael P. Burton,
:
:Ahhh... I did call the TAC and they told me that it was possible... They
:said that I needed to use a string like:
:
: public at 2... @10.10.10.10
:
:Where "@2..." is the VLAN, but MRTG does not support this. It does not
:surprise me that Cisco did this.
:
:I do not need to sound like a "lamer" but I am a little confused by what
:you mean "all together in one blob". Do you have an example config I
:could see??
:
:Thank you
:
:"Michael P. Burton" wrote:
:>
:> We talked to Cisco about this, and it turns out that they have disabled
:> aggreate VLAN SNMP gathering because their more "useful" (read expensive)
:> solution is to use their LAN Manager. What we did to get around that
:> problem is to add all the interfaces for that VLAN togeter into one
:> config blob. It isn't very pretty, but it works to get you the info that
:> you need...
:>
:> Michael
:>
:> On Wed, 11 Aug 1999, Phillip Ryker wrote:
:>
:> :I am still having problems figuring out how to get MRTG to read in/out
:> :traffic for switched ports in Different VLANS.
:> :
:> :I have a cisco 2924XL switch. It is VLANED into 4 segments as follows:
:> :
:> : ports 1-8: VLAN 1
:> : ports 9-16: VLAN 2
:> : ports 17-20: VLAN 3
:> : ports 21-24: VLAN 4
:> :
:> :When I run cfgmaker on the switch it sees all the ports just fine. When
:> :I run MRTG on the .cfg file it only reads traffic for ports on the
:> :first VLAN. It shows "0" for all the other ports. I have not been able
:> :to figure this one out and I unfortunetly do not have an extensive
:> :knowledge of SNMP. I tried walking the switch and really do not know
:> :what I am looking at or for??
:> :
:> :Any help would be appreciated.
:> :
:> :Thank you
:> :--
:> :--------------------------------------------------------------------
:> :Phillip Ryker pryker at skynetweb.com
:> :President SkyNetWEB Ltd
:> :Phone: 410-563-6384 Ext 12 1301 S. Baylis St.
:> :Fax: 410-563-5457 Baltimore Md. 21224
:> :--------------------------------------------------------------------
:> :Dedicated servers, co-location and web hosting services...
:> :--------------------------------------------------------------------
:> :
:> :--
:> :* To unsubscribe from the mrtg mailing list, send a message with the
:> : subject: unsubscribe to mrtg-request at list.ee.ethz.ch
:> :* The mailing list archive is at http://www.ee.ethz.ch/~slist/mrtg
:> :
:>
:> ________________________________________________________________________
:> Michael P. Burton "Love is like racing across the frozen tundra
:> Network Engineer, DCII on a snowmobile which flips over,
:> Portland State University trapping you underneath.
:> At night, the ice-weasels come." - Nietchze
:> -------------------------------------------------------------------------
:> GCS d---- H--- s g+ !p au a25 w+++ v++ C++ UL++ P+ L++ 3 E---- N+ K- W+ M
:> V po--- Y+ t++ 5 j R++ G+ tv b++ D+ B--- e+++ u++ h-- f+ r+++ n--- z+++
:> Decode at: http://pcd.stanford.edu/mogens/geek2.html
:> -------------------------------------------------------------------------
:>
:> --
:> * To unsubscribe from the mrtg mailing list, send a message with the
:> subject: unsubscribe to mrtg-request at list.ee.ethz.ch
:> * The mailing list archive is at http://www.ee.ethz.ch/~slist/mrtg
:
:--
:--------------------------------------------------------------------
:Phillip Ryker pryker at skynetweb.com
:President SkyNetWEB Ltd
:Phone: 410-563-6384 Ext 12 1301 S. Baylis St.
:Fax: 410-563-5457 Baltimore Md. 21224
:--------------------------------------------------------------------
:Dedicated servers, co-location and web hosting services...
:--------------------------------------------------------------------
:
:--
:* To unsubscribe from the mrtg mailing list, send a message with the
: subject: unsubscribe to mrtg-request at list.ee.ethz.ch
:* The mailing list archive is at http://www.ee.ethz.ch/~slist/mrtg
:
________________________________________________________________________
Michael P. Burton "Love is like racing across the frozen tundra
Network Engineer, DCII on a snowmobile which flips over,
Portland State University trapping you underneath.
At night, the ice-weasels come." - Nietchze
-------------------------------------------------------------------------
GCS d---- H--- s g+ !p au a25 w+++ v++ C++ UL++ P+ L++ 3 E---- N+ K- W+ M
V po--- Y+ t++ 5 j R++ G+ tv b++ D+ B--- e+++ u++ h-- f+ r+++ n--- z+++
Decode at: http://pcd.stanford.edu/mogens/geek2.html
-------------------------------------------------------------------------
--
* To unsubscribe from the mrtg mailing list, send a message with the
subject: unsubscribe to mrtg-request at list.ee.ethz.ch
* The mailing list archive is at http://www.ee.ethz.ch/~slist/mrtg
--
* To unsubscribe from the mrtg mailing list, send a message with the
subject: unsubscribe to mrtg-request at list.ee.ethz.ch
* The mailing list archive is at http://www.ee.ethz.ch/~slist/mrtg
More information about the mrtg
mailing list