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<p class=MsoNormal>Dear Respected Friends,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We are really stuck, we need to create MRTG graphs from ET/BWMGR.
Please assist urgently.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><a
href="http://www.etinc.com/index.php?page=bandwidth-manager-manual-v41.htm#snmp">http://www.etinc.com/index.php?page=bandwidth-manager-manual-v41.htm#snmp</a><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a
name=snmp></a><b><span style='font-size:10.5pt;font-family:"Verdana","sans-serif";
color:#777777'>SNMP and MRTG with ET/BWMGR <o:p></o:p></span></b></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>The
-stats function described above is the most efficient way to gather statistical
information for a rule, but the information cannot be exported to be read by an
SNMP manager such as MRTG. In order to be able to export the statistical info
to an SNMP gathering device, you must create an interface associated with the
rule that can be read by SNMP.<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>To
create a statistical interface, use the "-statsdevice devname" syntax
(or add a stats device in the GUI). The interface name must be 8 characters or
less and end with a number. Suppose that you have a customer named General
Dynamics and their IP address is 178.35.1.8. You could create a statistical
interface with the following:<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:26.25pt'><span style='font-size:7.5pt;font-family:Courier;
color:#CC33CC'>bwmgr em0 -addr 178.35.1.8 -statsdevice gendyn0<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>This
would create the interface gendyn0 and store all of the traffic information for
this IP address crossing em0 into this interface. You could then track/chart
gendyn0 with an SNMP package such as MRTG.<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a
name=snmpnotes></a><b><span style='font-size:10.5pt;font-family:"Verdana","sans-serif";
color:#777777'>Notes on SNMP <o:p></o:p></span></b></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>Note
that SNMP only reports interfaces that exist at the time that the SNMP daemon
is first run. This implies that interfaces created with the bwmgr function must
either be created BEFORE running snmpd or that you much kill and restart SNMP
after creating interfaces. Also note that sending a HUP signal to SNMP does NOT
cause it to recognize new interfaces.<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>Note
that the ET/BWMGR only counts actual IP data (including the IP headers) for its
statistics. Ethernet interfaces include the ethernet header (14 bytes). While
this is arguably correct for determining bandwidth used on the LAN itself, the
ethernet header is not tranmitted by a router so it should not be included in
router or internet related statistics. This discrepency may be noticable when
using MRTG to map both physical interface statistics and also
interface-specific statistics reported by ET/BWMGR. The numbers for ET/BWMGR
will be lower because they do not include the hardware header counts.<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a
name=viewbw></a><b><span style='font-size:10.5pt;font-family:"Verdana","sans-serif";
color:#777777'>Viewing Bandwidth Statistics <o:p></o:p></span></b></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>You can
alternatively view stats on the interface with the CLI using the following
syntax: <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:26.25pt'><span style='font-size:7.5pt;font-family:Courier;
color:#CC33CC'>bwmgr em0 stats [rule]<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Verdana","sans-serif";
color:black'>where rule is an optional parameter which can be either the rule
name or number. <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a
name=bwperiod></a><b><span style='font-size:10.5pt;font-family:"Verdana","sans-serif";
color:#777777'>Changing the Statistical Period <o:p></o:p></span></b></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>You can
change the statistical period described above with the following command:<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:26.25pt'><span style='font-size:7.5pt;font-family:Courier;
color:#CC33CC'>bwmgr setperiod value<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>where
value is the new period. So, to set the period to 1 minute, you would use the
following:<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
margin-left:26.25pt'><span style='font-size:7.5pt;font-family:Courier;
color:#CC33CC'>bwmgr setperiod 60<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>Note
that the statistical period is the same as the burst period, so if you are using
bursting its likely that its more important to use a period to conform to your
bursting requirements than statistical viewing.<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:red'> <b>Mohamed Sangey<o:p></o:p></b></span></p>
<p class=MsoNormal><b><span style='color:red'> NOC Technical Engineer<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='color:red'><img border=0 width=168 height=65
id="Picture_x0020_1" src="cid:image001.gif@01CB9625.49598130" alt=logo><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:red'>Support : (+255)
0653-635212 / 0754-986875<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:red'>Mobile : (+255) 653
- 270002<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;color:red'><o:p> </o:p></span></p>
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