problem w/ auto negotiate & ns83820 & netgear fsm726s switch

problem w/ auto negotiate & ns83820 & netgear fsm726s switch

[Mr. James W. Laferriere]

	Hello All ,  I am having a dickens of a time with auto negotiation
	between a netgear fsm726s & a TrendNet TEG-PCISX+ .  Fyi ,  Which
	I bought just for this card .

	The switch reports negotiating ...
	Port Name        Link On/Off State      Rate/Duplex Flow Ctrl
	26GB Not Defined Up   On     Forwarding (10   Full) (Disabled)

	ns83820 reports ,  eth0: link now 1000F mbps, full duplex and up.

	The thruput to a 10/100 device is dismal at best .  Which
	lead me to the idea that something was wrong with negotiation .
	See (*) below .

	I have attempted to set the switch port speed/duplex/flow manually
	then I am unable to ping thru the ns83820 card .

	I am quite aware that this could well be a difficulty in the
	switch still .  So I am looking for pointers on where to look ?
 	I already tried the netgear suport site ;-} .  That is why I am
	running the lastest code for the switch (1.0.4) .

		Tia ,  JimL

# uname -a
Linux filesrv1 2.4.21-pre3 #1 SMP Sat Mar 8 13:44:59 EST 2003 i686 unknown

# dmesg | grep eth0
ns83820.c: National Semiconductor DP83820 10/100/1000 driver.
eth0: ns83820.c: 0x22c: f022100b, subsystem: 100b:f022
eth0: detected 64 bit PCI data bus.
eth0: enabling optical transceiver
eth0: ns83820 v0.20: DP83820 v1.3: 00:40:f4:66:df:ed io=0xfeafe000 irq=20 f=sg
...
eth0: link now 1000F mbps, full duplex and up.
eth0: no IPv6 routers present

cut-n-paste from serial console of ...
                        FSM726S Managed Stackable Switch
 Unit   1                 Set-up > Port Configuration

Port    Name             Link   On/Off   State        Rate/Duplex   Flow Ctrl
...
 2      Not Defined      Up       On     Forwarding   (100  Full)   (Enabled )
...
26GB    Not Defined      Up       On     Forwarding   (10   Full)   (Disabled)


(*)
# tftp filesrv1
tftp> mode binary
tftp> get getme
Received 495321088 bytes in 334.0 seconds
tftp> quit

# bc
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
scale=10
495321088/334
1482997.2694610778	< Bytes/sec
last*8
11863978.1556886224	< ~ bits/sec
quit
#

-- 
       +------------------------------------------------------------------+
       | James   W.   Laferriere | System    Techniques | Give me VMS     |
       | Network        Engineer |     P.O. Box 854     |  Give me Linux  |
       | babydr@baby-dragons.com | Coudersport PA 16915 |   only  on  AXP |
       +------------------------------------------------------------------+

Re: problem w/ auto negotiate & ns83820 & netgear fsm726s switch

[Benjamin LaHaise]

On Wed, Mar 12, 2003 at 09:11:02AM -0500, Mr. James W. Laferriere wrote:
> 	The switch reports negotiating ...
> 	Port Name        Link On/Off State      Rate/Duplex Flow Ctrl
> 	26GB Not Defined Up   On     Forwarding (10   Full) (Disabled)
> 
> 	ns83820 reports ,  eth0: link now 1000F mbps, full duplex and up.
...
> 	I am quite aware that this could well be a difficulty in the
> 	switch still .  So I am looking for pointers on where to look ?
>  	I already tried the netgear suport site ;-} .  That is why I am
> 	running the lastest code for the switch (1.0.4) .

It's entirely possible the card has a different polarity for the phy bits 
as compared to the fibre card (Netgear) that the driver is already tested 
on.  Also, I've only managed to test on a cisco switch -- is there any 
other hardware you can test against (ie using the fibre cable for cross 
over) to narrow things down?  Enabling debug and dumping the status bits 
might hint as to what has to be changed.  Thankfully Trendnet seems to 
have programmed the subsystem id, so I'll be able to include the change 
automatically.

		-ben

Re: problem w/ auto negotiate & ns83820 & netgear fsm726s switch

[Mr. James W. Laferriere]

	Hello Ben ,

On Wed, 12 Mar 2003, Benjamin LaHaise wrote:
> On Wed, Mar 12, 2003 at 09:11:02AM -0500, Mr. James W. Laferriere wrote:
> > 	The switch reports negotiating ...
> > 	Port Name        Link On/Off State      Rate/Duplex Flow Ctrl
> > 	26GB Not Defined Up   On     Forwarding (10   Full) (Disabled)
> >
> > 	ns83820 reports ,  eth0: link now 1000F mbps, full duplex and up.
> ...
> > 	I am quite aware that this could well be a difficulty in the
> > 	switch still .  So I am looking for pointers on where to look ?
> >  	I already tried the netgear suport site ;-} .  That is why I am
> > 	running the lastest code for the switch (1.0.4) .

> It's entirely possible the card has a different polarity for the phy bits
> as compared to the fibre card (Netgear) that the driver is already tested
> on.  Also, I've only managed to test on a cisco switch -- is there any
> other hardware you can test against (ie using the fibre cable for cross
> over) to narrow things down?  Enabling debug and dumping the status bits
> might hint as to what has to be changed.  Thankfully Trendnet seems to
> have programmed the subsystem id, so I'll be able to include the change
> automatically.
	I have access to another one of those cards at work it reports
	the same items in the dmesg ,  I just looked at the switch it is
	attached to & it shows fine(*) .  That switch manufacturer is an
	old Cabletron SSR4000 .  But the thruput there is even worse (**).
	THO the ssr4k network isn't idle .  And I am unable to aportion a
	time to make it idle .  The previous emails test network was idle .
	After I get back from a road trip next week I'll try a back to
	back test .  At least I hope I can when I get back .  Twyl ,  JimL

(*)
 # port show port-status gi.4.2
Flags: M - Mirroring enabled  S - SmartTRUNK port
                                                              Link  Admin
Port     Port Type              Duplex Speed      Negotiation State State
Flags
----     ---------              ------ -----      ----------- ----- ----- -----
gi.4.2   1 Gigabit Ethernet     Full   1 Gbits    Auto        Up    Up

(**)
 $ tftp hostname
tftp> mode binary
tftp> get getme
Received 675315712 bytes in 1169.8 seconds
tftp> quit

 $ bc
scale=10
675315712/1169.8
577291.5985638570	<< bytes/sec
last*8
4618332.7885108560	<< bits/sec
quit

-- 
       +------------------------------------------------------------------+
       | James   W.   Laferriere | System    Techniques | Give me VMS     |
       | Network        Engineer |     P.O. Box 854     |  Give me Linux  |
       | babydr@baby-dragons.com | Coudersport PA 16915 |   only  on  AXP |
       +------------------------------------------------------------------+