[mrtg] Syntax for 10Gbps interface name

[Rick Pummel]

Perfect, this is exactly the information I needed! Thank you!

Rick Pummel
Walla Walla Public Schools

On Tue, Dec 6, 2016 at 2:26 AM, Pavel Ruzicka <pavouk at pavouk.org> wrote:

> Hi Rick,
>
> > However, I have scoured the MRTG documentation and still cannot find the
> > appropriate syntax for a 10Gbps port on the same switch.
>
> First you can get Interface names with "snmpwalk" command. It is part of
> "net-
> snmp-utils" package on Centos for example.
>
> You can get interface names for machines (ifName) or for people (ifDescr).
> Here is example for C4507:
> [mrtg at mrtg ~]$ snmpwalk -v2c -c public c45switch ifName
> IF-MIB::ifName.2 = STRING: Te1/1
> IF-MIB::ifName.3 = STRING: Te1/2
> IF-MIB::ifName.4 = STRING: Gi1/3
> IF-MIB::ifName.5 = STRING: Gi1/4
> ...
>
> [mrtg at mrtg ~]$ snmpwalk -v2c -c public c45switch ifDescr
> IF-MIB::ifDescr.2 = STRING: TenGigabitEthernet1/1
> IF-MIB::ifDescr.3 = STRING: TenGigabitEthernet1/2
> IF-MIB::ifDescr.4 = STRING: GigabitEthernet1/3
> IF-MIB::ifDescr.5 = STRING: GigabitEthernet1/4
> ...
>
> Also it is not needed to create MRTG configuration manually. It is better
> to
> generate it automatically. Advantage is that somebody add new interface
> that
> it will be automatically measured.
> I am running my script which call "cfgmaker".
>
> cfgmaker is part of MRTG package and it automatically generate MRTG
> configuration file. You can call them for example 1 per day from cron at
> night. I use main mrtg.cfg file with Includes. One included file is per one
> switch/router.
>
> Here is example of cfgmaker:
> cfgmaker --ifref=name  --snmp-options=:::2::2 public at c45switch
>
> Here is part of output for 10G interface:
>
> ----------------------------------------------
> ### Interface 2 >> Descr: 'TenGigabitEthernet1/1' | Name: 'Te1/1' | Ip: ''
> |
> Eth: '' ###
>
> Target[c45switch_Te1_1]: #Te1/1:public at c45switch:::2::2
> SetEnv[c45switch_Te1_1]: MRTG_INT_IP="" MRTG_INT_DESCR="
> TenGigabitEthernet1/1"
> MaxBytes[c45switch_Te1_1]: 1250000000
> Title[c45switch_Te1_1]: Traffic Analysis for Te1/1 -- C45SWITCH
> PageTop[c45switch_Te1_1]: <h1>Traffic Analysis for Te1/1 -- C45SWITCH</h1>
>                 <div id="sysdetails">
>                         <table>
>                                 <tr>
>                                         <td>System:</td>
>                                         <td>C45SWITCH in </td>
>                                 </tr>
>                                 <tr>
>                                         <td>Maintainer:</td>
>                                         <td></td>
>                                 </tr>
>                                 <tr>
>                                         <td>Description:</td>
>                                         <td>TenGigabitEthernet1/1 Uplink
> port
> </td>
>                                 </tr>
>                                 <tr>
>                                         <td>ifType:</td>
>                                         <td>ethernetCsmacd (6)</td>
>                                 </tr>
>                                 <tr>
>                                         <td>ifName:</td>
>                                         <td>Te1/1</td>
>                                 </tr>
>                                 <tr>
>                                         <td>Max Speed:</td>
>                                         <td>1250.0 MBytes/s</td>
>                                 </tr>
>                         </table>
>                 </div>
> ------------------------------------------------
>
> Best regards, Pavel.
>
>
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