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List:       net-snmp-patches
Subject:    [Net-snmp-patches] [ net-snmp-Patches-657808 ] Interface speed in Linux
From:       "SourceForge.net" <noreply () sourceforge ! net>
Date:       2003-02-21 9:31:51
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Patches item #657808, was opened at 2002-12-23 11:10
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=312694&aid=657808&group_id=12694

Category: None
Group: None
Status: Closed
Resolution: Accepted
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Wes Hardaker (hardaker)
Summary: Interface speed in Linux

Initial Comment:
There's a known problem that usd-snmpd and net-snmpd 
can't determine network interface speed, 10 Mbit/sec
is the hardcoded value. And the reason is clear: the
correct determination of the parameter is system- and
hardware specific, depends on Ethernat card model and
its driver. 
  Nevertheless I propose to determine the speed at list
for NICs with MII-tranceivers (media independent
interface). There's a free program "mii-diag" written
by Donald Becker (http://www.scyld.com) that works
upder Linux and shows some parameters of a card
including transfer mode and link status. The code was
adopted for usd-snmp ver. 4.2.3. The patch is attached
below. 
  The patch also allows to determine ifOperStatus
parameter (i.e. link status) correctly: in case of link
troubles ifOperStatus is set to "down"

----------------------------------------------------------------------

Comment By: Kirill Semenkov (semenkovk)
Date: 2003-02-21 09:31

Message:
Logged In: YES 
user_id=675571

There are some things that are not taken into account by this patch: interface speed \
determination is wrong when there's problems with autonegociation but link partner, \
however, sent link beat. The second version of the patch fixes it.


----------------------------------------------------------------------

Comment By: Wes Hardaker (hardaker)
Date: 2003-02-20 05:45

Message:
Logged In: YES 
user_id=76242

Thanks for the patch!  It has been applied to the next release of
the
net-snmp package.


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=312694&aid=657808&group_id=12694


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