IBM 8271 Ethernet switch with 155MB/s uplink

8271 front
The IBM 8271 seems to be a badged 3com switch which has a slot in the rear for an ATM 155MB/s uplink. There is also a 100MB/s fibre ethernet module available.

8271 rear showing 155MB/s fibre uplink

In this pic, the last four ports are set to one vlan not mapped to ATM, but ports 1 to 8 are mapped to different ELANS.

Overview

Access is by a serial port set to 9600 8N1 without flow control, or telnet once an ipaddress is set. Each ethernet port can be assigned to a vlan, and there can be 12 LEC instances running with it's own ELAN name, these instances can be set to participate in a ethernet VLAN, thereby bridging the ethernet to an ATM ELAN.

The ATM fibre uplink is a UNI port. 3.0 and 3.1 is supported. The only mode supported is LAN Emulation, PVCs are not supported.

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x                           IBM 8271 Nways Switch                              x
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x                                                                              x
x                                                                              x
x                                                                              x
x      888   2222  77777  1       N    N  W     W   AAA   Y    Y   SSSS        x
x     8   8      2    7   1       N N  N  W  W  W  A   A  Y    Y  S            x
x      888    222    7    1       N  N N  W  W  W  AAAAA   YYYYY   SSS         x
x     8   8  2      7     1       N   NN  W W W W  A   A       Y      S        x
x      888   2222  7      1       N    N  W     W  A   A   YYYYY  SSSS         x
x                                                                              x
x                                                                              x
x                                                                              x
x                                                                              x
x                          BMH 8271                                            x
x                                                                              x
x                                                                              x
x                                                                              x
x                          Press Enter to Continue ...                         x
x                                    OK                                        x
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x                                                                              x
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Config

Initial screen:-

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x                       IBM 8271 Nways Switch Main Menu                        x
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x                                                                              x
x                                                                              x
x                                                                              x
x                          SWITCH MANAGEMENT                                   x
x                          USER ACCESS LEVELS                                  x
x                          STATUS                                              x
x                          MANAGEMENT SETUP                                    x
x                          SOFTWARE UPGRADE                                    x
x                          INITIALIZE                                          x
x                          RESET                                               x
x                          REMOTE POLL                                         x
x                          ATM CONFIGURATION                                   x
x                                                                              x
x                          LOGOFF                                              x
x                                                                              x
x                                                                              x
x                                                                              x
x                                                                              x
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x                                                                              x
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ATM config initial screen:-

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x               IBM 8271 Nways Switch ATM Module Configuration                 x
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x                                                                              x
x    Changing the configuration displayed on this screen will cause the        x
x    device to be reset and may result in a loss of communication. Please      x
x    refer to the manual before editing any of the fields on this screen.      x
x                                                                              x
x    ATM Mode:           LAN Emulation Version 1                               x
x    Signalling:         `uni3.1   `                                           x
x    SONET/SDH:          `SONET STS-3c   `                                     x
x    Max VPI Bits(0-4):  [3 ]                                                  x
x    Max VCI Bits:        8                                                    x
x    ILMI VCC:           [0 ]  [16  ]                                          x
x                                                                              x
x    ATM Module Version Information:                                           x
x      Hardware Version:               1.00                                    x
x      Upgradable Software Version:    1.08                                    x
x      Boot Software Version:          1.00                                    x
x                                                                              x
x                  OK           ATM LEC SETUP            CANCEL                x
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x                                                                              x
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ATM Lan Emulation Client setup:-

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x                     IBM 8271 Nways Switch ATM LEC Setup                      x
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x                                                                              x
x    Select APPLY after configuring the LEC parameters for each VLAN.          x
x    Selecting another VLAN will discard any edits that have not been          x
x    saved using APPLY                                                         x
x                                                                              x
x    Select the VLAN to be configured:                              [1 ]       x
x                                                                              x
x    Is this VLAN to be connected to an ELAN?                      `Yes`       x
x                                                                              x
x    Is the LES Address to be entered manually                                 x
x    or obtained from the LECS?                                 `LECS  `       x
x                                                                              x
x                                                                              x
x                                                                              x
x    Enter the name of the ELAN                                                x
x    that this VLAN is to join:      [BMH_MAIN                         ]       x
x                                                                              x
x                       APPLY               CANCEL                             x
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x                                                                              x
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VLAN config and mapping to ELANS

Idea is to map an ELAN to a VLAN, and then set a physical port to be a member of the required VLAN. This puts each port on the front to a different ATM ELAN.

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x                      IBM 8271 Nways Switch Management                        x
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x                                                                              x
x                  Management Level:       `VLAN`                              x
x                                                                              x
x              SERVER                                  SETUP   CANCEL          x
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x                                                                              x
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Go to Setup for VLAN membership:-

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x                      IBM 8271 Nways Switch VLAN Setup                        x
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x                                                                              x
x           Port   Type       VLAN Membership                                  x
x         lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk         x
x         x   1              1                                       x         x
x         x   2                2                                     x         x
x         x   3                  3                                   x         x
x         x   4                    4                                 x         x
x         x   5                      5                               x         x
x         x   6                        6                             x         x
x         x   7                          7                           x         x
x         x   8                            8                         x         x
x         x   9                              9                       x         x
x         x  10                              9                       x         x
x         mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj         x
x                                                                              x
x           Port ID:   1      VLAN ID: [1 ]                                    x
x                                                                              x
x         APPLY                                               CANCEL           x
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x                                                                              x
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Lost Password notes

Just a dump from some notes, needs ceaning up.

FIXME

Subject: Re: Password Lost, IBM 8271-712 

Content: 
Since the 8271-712 IBM switch is in reality a 3com Superstack II 3000 
switch, I just put the last firmware for the 3com Superstack II 3000 on my 
switch and by that action, the admin account was reset. I surely can put 
back on an IBM firmware but since the 3com firmware a more recent, I think 
I will keep it.

To update the firmware and change the ip address of the switch without the 
admin password;

1- Close the switch
2- Connect a null modem serial cable and establish a connection
3- Power On the switch
4- When all the status led of all port a on, hit reset on the back
5- In the console hit "h" to see the context menu 



Subject: Re: Password Lost, IBM 8271-712 

Content: 
Ahh, well - ironically, this is the reason i asked, since I was going to 
suggest this. I have just upgraded a switch to this firmware, and am 
convinced that the 3com firmware is a must have fimrware.

Performance of the switch has improved, the web interface seems much more 
responsive, and clearly, it resets passwords. The serial update utility is 
superceeded by a Windows GUI version which seems to work brilliantly.

Specifically, the switch is marked (on the PCB) as a 3Com Superstack II 
1100. The information for these models is available from the 3Com website 
under the 'Old Devices' section of the Drivers and Updates. (NOTE: The 
terms used arent exact, they are my best recollection) 



Subject: Re: Password Lost, IBM 8271-712 

Content: 
confused, confused, confused....
Is the 8271-712 a 3Com Superstack II 1100 or a 3Com Superstack II 3000 ???
The latest firmware for the 8271-712 is 3.22. ( '99)
The latest firmware for the SSII 3000 is 3.23. ( '00)
The latest firmware for the SSII 100 is 2.29. ( '02)
consusing ....




Subject: Re: Password Lost, IBM 8271-712 

Content: 
Etienne,
I have a similar problem. I tried the 3000 firmware and it didn't reset 
the admin account, I still can't get into the admin user. What else did 
you do?

Greg 



Subject: Re: Password Lost, IBM 8271-712 

Content: 
Found a useful discussion about this device here:
http://www.tek-tips.com/gviewthread.cfm/pid/545/qid/555357

This includes how to reset the admin password 









IceDragon2000 (IS/IT--Manageme)
May 21, 2003



I have the answer to everyones problem.  Thanks to 3COM for such an easy 
way to reset their switches. Anyone and their mom will be able to reset 
the config on these switches.  At least it only works with the console 
port.  This works on any superstack switch from 3com, so even with the 
chit chat.

Login: 3comcso
Password: RIP000

Boom that's it.


Start Your Own Tek-Tips Group! Click Here!


dljones (IS/IT--Manageme)
May 24, 2003



An if that don't work you can reload or update your  firmware to reset the 
passwords, you will need 
1. firmware (for a Superstack II 3000 like I have) the url is   http://support.3com.com/software/superstack_ii_switch_3000.htm  ;
2. a null modem cable
3. a TFTP Server software you can download it from 3com called 3CServer 
(make sure you set the TFTP folder where the firmware file is located) 
 
Once you have all this in hand do the following.
1. Connect the null-modem cable, configure Hyper Terminal for windows 
users to the com port you have connected, normal com setting N-8-1 none 
and VT100, connect to switch (login should appear if not don't worry 
console may be disable)
2. configure and start your TFTP Server 
3. on the switch push the reset button 2 seconds
4. wait 3 seconds
5. push reset button again for 1 second
6. you should see the prompt after a few seconds at the prompt line type 
the following commands
    F  ls3k3_23.slx  (firmware file name) "press enter"
    B  IPAddress of TFTP Server "press enter"
After firmware update the switch will reboot and the passwods will fall 
back to factory default.  

 




thirdeg (IS/IT--Manageme)
May 31, 2003



Thanks IceDragon2000 you have stoped me having to send off a switch to 
3Com, how where did you find that little pearl of wisdom?




cloonie (TechnicalUser)
Jul 17, 2003



Hi !

This is an impossible solution for my problem ...

I?ve an 3com Superstack II 9300 2-LX/10-SX (3C93011) SWITCH.

My Problem is: I could not login to reconfigure. My pal is walk out around 
the world and the 3com-support is over, because the machine was bought 
from 2001, and it?s to old since registration (just 
2-year-free-support-help).
They gave me the offer to pay lot of money for help me here. - No thanks ! 
I haven?t !

Here are all my tried backdoors w/o effect (used serial-console):

adm/(none)
admin/synnet
admin/admin
admin/(blank)
admin/nopass
debug/synnet
write/synnet

... always "incorrect password" !
--------------
and:

root/(blank)
root/manger 
security/(blank)
security/security
manager/manager
recover/recover
tech/tech
monitor/monitor
3comcso/RIP000
force/force

... always ".. is not a valid access level"

and here is NO reset-button on my machine ...

Maybe anyone got a quick idea ?! The delivered handbooks (the 
customer+admin handbooks) have no details for this case...

Does anyone have any idea or answer ?!

Greetings,

Phil (cloonie)









dw1ght (ISP)
Jul 23, 2003



3comcso/RIP000 did nto work on all of ours, althought sspifadmin as a 
password seemed to on some 




mrashburn (MIS)
Jul 24, 2003



Been here done this - LOL  The firmware update (posted by dljones) 
will/does work.  It's the only reliable way to get the job done that I'm 
aware of.  3COM also has a utility to push (ok - that's not really a 
strong enough word - SHOVE is more descriptive) a new f/w version onto the 
switch (actually 3300s are all I have ever used it with). You know - 
"Ensure power is not disrupted during file transfer" about 20 seconds 
before it goes completely dark and your stuck? I can't think of the name 
of the utility, just email me if you need the name and I can look it up.

mashburn@envsci.com




1239227 (TechnicalUser)
Aug 4, 2003



dljones

Cheers for the info on the firmware loading. I have done this twice and 
loaded to different versions of my linkswitch 1000 firmware, but I still 
can't login. I have a thought though. when you type in the user you can 
see what you type. When you put in the password normally you get the stars 
that apper showing how many letters you have typed this dosn't happen. 

Any thoughts

Cheers




Speed01 (IS/IT--Manageme)
Aug 5, 2003



The password doesn't show up. When you log in, what username / password 
are you using? You should be able to log in as admin with a blank 
password.

Speed




1239227 (TechnicalUser)
Aug 7, 2003



Well I was trying all the passwords etc from the manual and those I have 
found online. For some reason the only way I could get the unit to reset 
was to load the oldest firmware and then a new one?

Thanks all as I have now got into the switch, and yes in the end admin and 
"blank" password got me in.

cheers all!




lukaszeczek (TechnicalUser)
Aug 13, 2003



hello I have in my network SuperStack II Swith 3000 I've try some backdor 
passwords, it works, manager / manager . So easy and clean ;)




worker99 (TechnicalUser)
Aug 19, 2003



You will find that 3comcso/RIP000 works on:
1100
3300 s2/s3
ps hubs

on 1000/3000 uploading a s/w does not erase the psswd
u follow the procedure set out by djones

dljones (IS/IT--Manageme) May 24, 2003 
An if that don't work you can reload or update your  firmware to reset the 
passwords, you will need 
1. firmware (for a Superstack II 3000 like I have) the url is   http://support.3com.com/software/superstack_ii_switch_3000.htm  ;;
2. a null modem cable
3. a TFTP Server software you can download it from 3com called 3CServer 
(make sure you set the TFTP folder where the firmware file is located) 
 
Once you have all this in hand do the following.
1. Connect the null-modem cable, configure Hyper Terminal for windows 
users to the com port you have connected, normal com setting N-8-1 none 
and VT100, connect to switch (login should appear if not don't worry 
console may be disable)
2. configure and start your TFTP Server 
3. on the switch push the reset button 2 seconds
4. wait 3 seconds
5. push reset button again for 1 second
6. you should see the prompt after a few seconds at the prompt line type 
the following commands
    F  ls3k3_23.slx  (firmware file name) "press enter"
    B  IPAddress of TFTP Server "press enter"
After firmware update the switch will reboot and the passwods will fall 
back to factory default. 


BUT before pressing b to begin s/w download
type RIP0000
then b

This will erase the password.




caliguy32 (IS/IT--Manageme)
Aug 29, 2003



Thanks to DLJONES - but just another tip while you do his steps to waiting 
the three seconds, If you actually look at the face of your Superstack II 
3000 after you press the reset button for 2 seconds, watch the Management 
link light, wait till it flashes 3 times, then press the reset button 
again for 1 second.  I had a lot of trouble getting the prompt to come up 
to type the flash file name untill I discovered that... I must have been 
counting too fast for the three seconds, lol.  Thanks a million for this 
tip.  It worked great for me again for the 3com SuperStack II 3000.




thickair (TechnicalUser)
Oct 2, 2003



HELP!

We just bought a Super Stack 1000.  I was able to RIP0000 at the upgrade 
screen and get access to the manager account.  I need admin though.

I'm doing everything through the serial.
The 3comcso/RIP000 (mentioned above) just gives me an invalid log in.

I would love to try "tftping" a newer version of firmware (mentioned 
above), but 3com has discontinued it.  I tried it with newer versions of 
firmware and it didn't work.

--Phil




gunzo (IS/IT--Manageme)
Oct 6, 2003



Download upgrades for SSII 1000 from http://www.3com.com/products/en_US/resul...

This worked for me....
I first loaded the oldest ls1k2_00 and after that ls1k3_21.
When done admin/blank works.




saabstory (TechnicalUser)
Oct 10, 2003



I have a SSII Desktop Switch (3C16902).  admin/blank does not get me 
in.  using the reset button, I got to the prompt.  I started a TFTP server 
session on a remote machine, set the ip and file info correctly for the 
upgrades, but get an update status id of 8 (load server not responding) 
when trying to do the upgrade with the "b" command.  again, all of this is 
through the console port.  I have what I believe to be the correct 
firmware from ftp.3com.com. I assume I have a settings problem w/ the gateway / IP info.  My 
question is: is my computer connected to the console port the gateway for 
the switch?  Or do I use the same gateway settings that my computer has to 
my router?  Technically the switch is not connected directly to my router, 
but is rather going through my computer to the router. Any other advice or 
details on getting successfully connected to the TFTP server?




saabstory (TechnicalUser)
Oct 13, 2003



Solved the Status 8 errors.  The switch needs to be MANAGED via the 
console port, but any data transferred (TFTP in this case) needs to be 
done over one of the ethernet ports.  I read somewhere that, to be safe, 
don't use the module port(s), but stick to one of the 24 default 
ports.  Now when attempting the TFTP, I instead am getting Status 10 
errors (record length mismatch).

This must be due to me having the incorrect files.  As a clarification 
from those that have successfully upgraded, should the upgrade files be 
".exe" executables?  I noticed that someone was upgrading with a ".slx" 
file.  The only files at 3com for my switch are executables.  

Again, this is a SSII Desktop Switch (3C16902), and the files available 
are: dt3_10.exe, dt3_21.exe, etc.  Any other input from those that have 
successfully upgraded?




nshank (IS/IT--Manageme)
Mar 30, 2004



After trying for about a week, I'm not getting any joy. I've tried 
everything I've read, and everything else I can think of, short of taking 
the switch apart, and looking for a jumper or chip that I can remove... If 
anyone has any other ideas, I'd be glad to try them.
 Thanks,
Nick
Nick Shank
Quorum Systems.

S.M.P. Its not just an architecture, its a way of life.





pounder222 (ISP)
Apr 7, 2004



Hey Guys,

Some great info here, but I am in the same boat as nshank.

I have tried various versions of the bios, but I can't seem to make the 
bios loader console react to the RIP000 or RIP0000 command prior to the b 
command.

The R in RIP is interpreted as reset serial port and it immediately gets 
stuck with the y/n prompt for that with any response resulting in a 
restart of the switch with no change in password status.

Worker99 if you are out there - what prom version does the bios loader 
console have for yours ? Mine is 2.10 What is yours as well nshank ?


Thanks in advance guys.

Jon




worker99 (TechnicalUser)
Apr 10, 2004



Pounder222,

AT the same point try RIP 000 or RIP 0000, I'm sorry I haven't worked on 
these for sometime. But if I remeber correctly RIP 000 should work.

For switches 1000/1100 - same method
switches 3300/hub 24 etc - 3comcso RIP000
switc 9300/3900 - admin/lanplex

Hope it helps. 




pounder222 (ISP)
Apr 12, 2004



Worker99 - You are the 3com switch God !

Yes the all important space between RIP and 0000 did the trick !

For good measure last time the switch was apart I accidentally jammed the 
fans during reassembly, so it may also have thought I just decided to fry 
its little brain since it would not let me in :)




nshank (IS/IT--Manageme)
Apr 12, 2004



Hmm... still no joy. This is a superstack 2 3000 12 port 10/100. The 
firmware is 3.23 and I'm connecting via serial.

I've tried manage/manage, security/security, and others, nothing. That 
said, am I doing something wrong?
 Nick
Nick Shank
Quorum Systems.

S.M.P. Its not just an architecture, its a way of life.





pounder222 (ISP)
Apr 12, 2004



As soon as I entered 
RIP 0000
at the bios boot loader I could tell it was going to be different, no 
message that is standard if you type r as the first character. I then 
typed b for the load, after reboot, admin/<nothing> got me right in. I 
could also tell at that point it had worked before logging in since the 
login screen had the name of the switch that had been programmed, and that 
was also erased.



----------------------------------------------------------------------------
There are only 10 types of people in the world:-
Those who understand binary & those who don't.

Switch reset - data gathering algorithm

From IBM GI1956:-

Important: Follow this procedure carefully.  Failure to do so can cause permanent damage to switch hardware.

1. Set up the switch debugger:

    a. Attach a PC to the serial port of the switch that has reset.
    b. Set up the terminal emulator to log the screen to a file.
    c. From the switch console,  enter the switch debugger by  pressing Ctrl-t.  Enter the switch   password at the prompt if  a password  is used on the switch.  You must  press Ctrl-t  from a screen  other than the sign-on screen.
    d. At the "eps>" prompt,  enter one of the following commands:
            perf 40  (if you are using 8272 code version 2.3.1 or earlier)
            extmsgs on   (if you are using 8272 code version 2.3.2 or higher)

        Note: Either of these  commands will enable extended  messaging.  The difference between the two is that  "extmsgs on" enables extended messaging indefinitely;   when you are finished, enter   extmsgs off  to turn it off.

       
2. Allow the emulator to continue to log to a file so that all messages are captured.  Allow the eps>  debugger screen  to remain on the console  the  until the switch resets.

3.  If you need to return to the main menu:

    a. Type cons  to return  to the main menu.
    b. Use  the menus as needed.
    c. Press Ctrl-t to return  to the debugger screen, remaining there  until the switch resets.

 
4.  After the switch resets, stop the screen capture on the emulator.  Send captured data to IBM Support personnel.

Note: If you are  using code version 2.3.2 or higher, go  to the debugger screen  after the box resets and type extmsgs off at the eps>  prompt to set extended messaging off.

rb/ibm8271.txt · Last modified: 02/10/2018 17:15 by andrew