[nsp] 7206vxr pps & mbit/s limits

Rafi Sadowsky rafi-cnsp at meron.openu.ac.il
Wed Oct 29 01:39:44 EST 2003


## On 2003-10-29 00:36 -0500 jlewis at lewis.org typed:

> On Wed, 29 Oct 2003, Rafi Sadowsky wrote:
> 
> >  Check out bug CSCdw50638 
> > ==
> > If you notice that a Fast Ethernet on a 7200 is experiencing
> > incrementing overruns and output errors. You should check
> > to see if a "debug ethernet" is generating %DEC21140-3-UNDERFLO
> > (see below), you may have this bug.
> 
> Problem sounds similar, but the hardware is different.  This card is AMD 
> Am79c971, and the errors are:
> 
> Oct 28 22:18:08: %AMDP2_FE-3-UNDERFLO: FastEthernet4/1 transmit error
> Oct 28 22:19:01: %AMDP2_FE-3-UNDERFLO: FastEthernet4/1 transmit error
> Oct 28 22:19:50: %AMDP2_FE-3-UNDERFLO: FastEthernet4/1 transmit error
> Oct 28 22:20:47: %AMDP2_FE-3-UNDERFLO: FastEthernet4/1 transmit error
> Oct 28 22:20:47: %AMDP2_FE-3-UNDERFLO: FastEthernet4/1 transmit error

 You never mentioned HW or IOS version in the original mail ;-)

> 
> If I debug ethernet-interface, I get flooded (many per second) with 
> %AMDP2_FE-4-BABBLE: FastEthernet4/0 transmit problem, CSR0=0xC200
> which is odd, since most of the underruns and drops are on f4/1.
> 
> >  To avoid high number of underruns on dec21140 type of FastEthernet
> > controllers, we can enable store and forward on the transmit side. The
> > command syntax (can be executed at config level) is "fastether transmit
> > store_and_forward enable" You will need to clear the fast ethernet
> 
> Is that a valid command?  Even on DEC based interfaces, fastether doesn't 
> appear to be a valid config command.

 I can (still ;-) cat & paste from bugtool ...
please note that this a GLOBAL(not interface) command


7204VXR#sh ver | inc IOS
IOS (tm) 7200 Software (C7200-IK9S-M), Version 12.3(1a), RELEASE SOFTWARE(fc1)
Last reload reason: IOS upgrade

7204VXR(config)#fastether transmit store_and_forward ?
  enable  Enable

==

7206#sh ver | inc IOS
IOS (tm) 7200 Software (C7200-IK8S-M), Version 12.2(11)T3, RELEASE SOFTWARE (fc2)

7206#sh running-config | inc store_and
fastether transmit store_and_forward enable

==
(back to lurk mode.. ;-)

-- 
	Rafi



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