Cisco switch 2950 problem

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Comments

  • Chris_Chris_ Member Posts: 326
    blackened wrote: »
    Guys I have a question, Would it be bad if I try to wipe the config, like they mention in this link

    I say this because I still can't manage the switch via 'hyperterminal', here's the startup-config:


    A bit of advice would be great. Thanks in advance.


    I don't think that's going to help you really, isuggested that in an earlier post, just in case the con0 had some weird config against it. I don't think it would do any harm to wipe the switch. I would probably stick a new IOS on it whilst I was at it, just in case of some corruption and you could do with a higher feature set anyway.

    All the issues that I've had like this have always boiled down to the PC, serial card or cable - but you've eliminated these.

    I had a look at the show tech and there doesn't seem to be anything in there pertaining to the console port.

    Perhaps we're all missing something simple here!!icon_scratch.gif by now I would probably have opened the box up and checked the conections to the main board for corossion or damage, you never know.

    At least you can manage the switch and get it going - I'll keep thinking about it and hope you get it sorted.
    Going all out for Voice. Don't worry Data; I'll never forget you
    :study: CVoice [X] CIPT 1 [ ] CIPT 2 [ ] CAPPS [ ] TVOICE [ ]
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    Chris_ wrote: »
    I don't think that's going to help you really, isuggested that in an earlier post, just in case the con0 had some weird config against it. I don't think it would do any harm to wipe the switch. I would probably stick a new IOS on it whilst I was at it, just in case of some corruption and you could do with a higher feature set anyway.

    All the issues that I've had like this have always boiled down to the PC, serial card or cable - but you've eliminated these.

    I had a look at the show tech and there doesn't seem to be anything in there pertaining to the console port.

    Perhaps we're all missing something simple here!!icon_scratch.gif by now I would probably have opened the box up and checked the conections to the main board for corossion or damage, you never know.

    At least you can manage the switch and get it going - I'll keep thinking about it and hope you get it sorted.

    I just started the switch with the mode button on, and got a switch: prompt, and I couldn't type anything... This is all about a cable console-serial port bad right?

    Dam it I already tried with two different pc's and three console cables, all of them seem to 'keep showing' the switch actions at hyperterminal.

    I'm getting an optiplex620 cpu luckily will arrive this monday, which has a serial port...
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    Hello guys, it's me again, I finally received my optiplex today and I'm still getting the same result:
    C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(6)EA2c, RELEASE SOFTWARE (fc1)
    Compiled Thu 28-Feb-02 14:59 by antonino
    WS-C2950-24 starting...
    Base ethernet MAC Address: 00:0a:41:17:47:40
    Xmodem file system is available.
    Initializing Flash...
    flashfs[0]: 16 files, 2 directories
    flashfs[0]: 0 orphaned files, 0 orphaned directories
    flashfs[0]: Total bytes: 7741440
    flashfs[0]: Bytes used: 4169728
    flashfs[0]: Bytes available: 3571712
    flashfs[0]: flashfs fsck took 6 seconds.
    ...done initializing flash.
    Boot Sector Filesystem (bs:) installed, fsid: 3
    Parameter Block Filesystem (pb:) installed, fsid: 4
    Loading "flash:/c2950-i6q4l2-mz.121-9.EA1.bin"...#########################################################################################################################################################################################################################################################################
    
    File "flash:/c2950-i6q4l2-mz.121-9.EA1.bin" uncompressed and installed, entry point: 0x80010000
    executing...
    
                  Restricted Rights Legend
    
    Use, duplication, or disclosure by the Government is
    subject to restrictions as set forth in subparagraph
    (c) of the Commercial Computer Software - Restricted
    Rights clause at FAR sec. 52.227-19 and subparagraph
    (c) (1) (ii) of the Rights in Technical Data and Computer
    Software clause at DFARS sec. 252.227-7013.
    
               cisco Systems, Inc.
               170 West Tasman Drive
               San Jose, California 95134-1706
    
    
    
    Cisco Internetwork Operating System Software
    IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(9)EA1, RELEASE SOFTWARE (fc1)
    Copyright (c) 1986-2002 by cisco Systems, Inc.
    Compiled Wed 24-Apr-02 06:57 by antonino
    Image text-base: 0x80010000, data-base: 0x804E8000
    
    
    Initializing flashfs...
    flashfs[1]: 16 files, 2 directories
    flashfs[1]: 0 orphaned files, 0 orphaned directories
    flashfs[1]: Total bytes: 7741440
    flashfs[1]: Bytes used: 4169728
    flashfs[1]: Bytes available: 3571712
    flashfs[1]: flashfs fsck took 7 seconds.
    flashfs[1]: Initialization complete.
    Done initializing flashfs.
    POST: System Board Test : Passed
    POST: Ethernet Controller Test : Passed
    ASIC Initialization Passed
    
    POST: FRONT-END LOOPBACK TEST : Passed
    cisco WS-C2950-24 (RC32300) processor (revision E0) with 20815K bytes of memory.
    Processor board ID FHK0625Y220
    Last reset from system-reset
    Running Standard Image
    24 FastEthernet/IEEE 802.3 interface(s)
    
    32K bytes of flash-simulated non-volatile configuration memory.
    Base ethernet MAC Address: 00:0A:41:17:47:40
    Motherboard assembly number: 73-5781-10
    Power supply part number: 34-0965-01
    Motherboard serial number: FOC06250BMJ
    Power supply serial number: DAB06244U1T
    Model revision number: E0
    Motherboard revision number: B0
    Model number: WS-C2950-24
    System serial number: FHK0625Y220
    
    
    Press RETURN to get started!
    
    
    00:00:14: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
    00:00:17: %SYS-5-CONFIG_I: Configured from memory by console
    00:00:17: %SYS-5-RESTART: System restarted --
    Cisco Internetwork Operating System Software
    IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(9)EA1, RELEASE SOFTWARE (fc1)
    Copyright (c) 1986-2002 by cisco Systems, Inc.
    Compiled Wed 24-Apr-02 06:57 by antonino
    
    C2950 Boot Loader (C2950-HBOOT-M) Version 12.1(6)EA2c, RELEASE SOFTWARE (fc1)
    Compiled Thu 28-Feb-02 14:59 by antonino
    WS-C2950-24 starting...
    Base ethernet MAC Address: 00:0a:41:17:47:40
    Xmodem file system is available.
    Initializing Flash...
    flashfs[0]: 16 files, 2 directories
    flashfs[0]: 0 orphaned files, 0 orphaned directories
    flashfs[0]: Total bytes: 7741440
    flashfs[0]: Bytes used: 4169728
    flashfs[0]: Bytes available: 3571712
    flashfs[0]: flashfs fsck took 6 seconds.
    ...done initializing flash.
    Boot Sector Filesystem (bs:) installed, fsid: 3
    Parameter Block Filesystem (pb:) installed, fsid: 4
    Loading "flash:/c2950-i6q4l2-mz.121-9.EA1.bin"...#########################################################################################################################################################################################################################################################################
    
    File "flash:/c2950-i6q4l2-mz.121-9.EA1.bin" uncompressed and installed, entry point: 0x80010000
    executing...
    
                  Restricted Rights Legend
    
    Use, duplication, or disclosure by the Government is
    subject to restrictions as set forth in subparagraph
    (c) of the Commercial Computer Software - Restricted
    Rights clause at FAR sec. 52.227-19 and subparagraph
    (c) (1) (ii) of the Rights in Technical Data and Computer
    Software clause at DFARS sec. 252.227-7013.
    
               cisco Systems, Inc.
               170 West Tasman Drive
               San Jose, California 95134-1706
    
    
    
    Cisco Internetwork Operating System Software
    IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(9)EA1, RELEASE SOFTWARE (fc1)
    Copyright (c) 1986-2002 by cisco Systems, Inc.
    Compiled Wed 24-Apr-02 06:57 by antonino
    Image text-base: 0x80010000, data-base: 0x804E8000
    
    
    Initializing flashfs...
    flashfs[1]: 16 files, 2 directories
    flashfs[1]: 0 orphaned files, 0 orphaned directories
    flashfs[1]: Total bytes: 7741440
    flashfs[1]: Bytes used: 4169728
    flashfs[1]: Bytes available: 3571712
    flashfs[1]: flashfs fsck took 7 seconds.
    flashfs[1]: Initialization complete.
    Done initializing flashfs.
    POST: System Board Test : Passed
    POST: Ethernet Controller Test : Passed
    ASIC Initialization Passed
    
    POST: FRONT-END LOOPBACK TEST : Passed
    cisco WS-C2950-24 (RC32300) processor (revision E0) with 20815K bytes of memory.
    Processor board ID FHK0625Y220
    Last reset from system-reset
    Running Standard Image
    24 FastEthernet/IEEE 802.3 interface(s)
    
    32K bytes of flash-simulated non-volatile configuration memory.
    Base ethernet MAC Address: 00:0A:41:17:47:40
    Motherboard assembly number: 73-5781-10
    Power supply part number: 34-0965-01
    Motherboard serial number: FOC06250BMJ
    Power supply serial number: DAB06244U1T
    Model revision number: E0
    Motherboard revision number: B0
    Model number: WS-C2950-24
    System serial number: FHK0625Y220
    
    
    Press RETURN to get started!
    
    
    00:00:14: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
    00:00:17: %SYS-5-CONFIG_I: Configured from memory by console
    00:00:17: %SYS-5-RESTART: System restarted --
    Cisco Internetwork Operating System Software
    IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(9)EA1, RELEASE SOFTWARE (fc1)
    Copyright (c) 1986-2002 by cisco Systems, Inc.
    Compiled Wed 24-Apr-02 06:57 by antonino
    00:02:49: %LINK-3-UPDOWN: Interface FastEthernet0/18, changed state to up
    00:02:50: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/18, changed state to down
    00:02:51: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/18, changed state to up
    00:03:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
    

    I talked to the seller and told me he succesfully tested the console port, If assuming he's right, is it okay to think there is something at the startup-config? is it okay to think the possibility to erase the whole configuration from the switch?

    Thanks in advance.
  • alan2308alan2308 Member Posts: 1,854 ■■■■■■■■□□
    phoeneous wrote: »
    write erase

    And then when you reload and it asks you if you want to save the running-configuration, say no.

    It gets me nearly every time. :D
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    blackened wrote: »
    Hi again, I think I might found something, I was fooling around and connected my default gateway to port 17 with a straight through cable, then I connected my laptop to port 20 (and then unplugget it later) with another straight through cable and got this:
    00:07:43: %LINK-3-UPDOWN: Interface FastEthernet0/17, changed state to up
    00:07:44: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/17, chan
    ged state to up
    00:08:15: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state t
    o up
    00:08:20: AUTOINSTALL: Vlan1 is assigned 192.168.1.93
    00:08:20: AUTOINSTALL: Obtain siaddr 192.168.1.254 (as config server)
    00:08:20: AUTOINSTALL: Obtain default router (opt 3) 192.168.1.254
    %Error opening tftp://192.168.1.254/network-confg (Timed out)
    %Error opening tftp://192.168.1.254/cisconet.cfg (Timed out)
    %Error opening tftp://192.168.1.254/router-confg (Timed out)
    00:10:27: %LINK-3-UPDOWN: Interface FastEthernet0/20, changed state to up
    00:10:28: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/20, chan
    ged state to down
    00:10:30: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/20, chan
    ged state to up
    %Error opening tftp://192.168.1.254/ciscortr.cfg (Timed out)
    %Error opening tftp://192.168.1.254/network-confg (Timed out)
    %Error opening tftp://192.168.1.254/cisconet.cfg (Timed out)
    %Error opening tftp://192.168.1.254/router-confg (Timed out)
    %Error opening tftp://192.168.1.254/ciscortr.cfg (Timed out)
    %Error opening tftp://192.168.1.254/network-confg (Timed out)
    00:14:42: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/20, chan
    ged state to down
    %Error opening tftp://192.168.1.254/cisconet.cfg (Timed out)
    %Error opening tftp://192.168.1.254/router-confg (Timed out)
    %Error opening tftp://192.168.1.254/ciscortr.cfg (Timed out)
    %Error opening tftp://255.255.255.255/network-confg (Timed out)
    %Error opening tftp://255.255.255.255/cisconet.cfg (Timed out)
    %Error opening tftp://255.255.255.255/router-confg (Timed out)
    %Error opening tftp://255.255.255.255/ciscortr.cfg (Timed out)
    %Error opening tftp://255.255.255.255/network-confg (Timed out)
    %Error opening tftp://255.255.255.255/cisconet.cfg (Timed out)
    

    I tried to telnet it, but:
    telnet 192.168.1.93
    Trying 192.168.1.93...
    Connected to 192.168.1.93.
    Escape character is '^]'.
    
    
    Password required, but none set
    Connection closed by foreign host.
    
    It just won't let me.

    Looks like it's trying to boot from an tftp server? Like I said I'm pretty new to all this cisco stuff, I hope this 'extra info' helps and hope someone could help me to interpret this.

    Hey guys, so I did what you suggested, write erase, so I'm quoting the output from before because, it's giving the output from before!

    Well, as happened before I retrieved the network-confg file from tfpt server, and recovered remote access to the switch.

    So I have a theory... maybe someone configured the switch just this way because he knew that console port is faulty somehow?

    What do you guys think?
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    Hi, thanks for your reply, this is the output for dir flash:
    Switch#dir flash: 
    Directory of flash:/
    
        2  -rwx     2490607   Mar 01 1993 00:03:31  c2950-i6q4l2-mz.121-9.EA1.bin
        3  -rwx        1495   Mar 01 1993 00:27:31  config.text
        4  -rwx         108   Mar 01 1993 00:02:11  info
        5  -rwx         311   Mar 01 1993 01:05:07  env_vars
        6  -rwx        4279   Nov 09 2006 18:20:44  config.old
        7  drwx         640   Mar 01 1993 00:04:21  html
       18  -rwx         108   Mar 01 1993 00:04:21  info.ver
    
    7741440 bytes total (3571712 bytes free)
    

    and dir nvram:
    Switch#dir nvram:
    Directory of nvram:/
    
        1  -rw-        1495              <no date>  startup-config
        2  ----           0              <no date>  private-config
    
    32768 bytes total (31273 bytes free)
    

    I hope this helps, thanks in advance.
  • billyrbillyr Member Posts: 186
    There is nothing wrong with the switches behaviour. Previously you were erasing the start up configuration by issuing the erase start or the older write erase command. When the switch boots it then sees that it has no startup config contained in nvram then it will automatically search for a tftp server.

    All signs seem to point to a faulty console port on the switch.
  • Chris_Chris_ Member Posts: 326
    I'm afraid I'm with Billy on this one, you may just have a dud, it happens. All you can do now is what I suggested earlier; check for any corroded or bent pins in the console socket and open it up and check from the socket to the board for corrosion maybe even tap it out with a multimeter.

    I don't want to presume your wealth but these things are so cheap on eBay that it's not really worth your while digging in to it for much longer, especially if it's getting in the way of study - although I'm sure it's been an education anyway. A lot of the things this has taught you aren't on any certification
    Going all out for Voice. Don't worry Data; I'll never forget you
    :study: CVoice [X] CIPT 1 [ ] CIPT 2 [ ] CAPPS [ ] TVOICE [ ]
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    Hello guys, thank you for your replies
    Unfortunately the problem points to be what you said, well it is okay I guess, like Chris said I learned some interesting things that I wouldn't have learned with a software/simulator/emulator, I guess I'll follow your advice to buy from ebay, just went for this one because it was in my country and no expensive shipping hehe, anyway I'll figure it out to buy from ebay and I know I know with one switch is not enough to practice for CCENT/CCNA, at least I think so.

    I'm looking forward to complete Network+ certification, and then go for the CCNA, don't know yet <If i skipp Network+>

    And I know this is completely out of the topic, but how many switches/routers do you recommend me for CCENT/CCNA, I know this may be the question of every week, but if it is possible I'd be more than glad hearing your suggestions.

    Thanks in advance.
  • NewManSoonNewManSoon Banned Posts: 53 ■■□□□□□□□□
    Maybe I missed it, but did anyone suggest to try a new console cable?
  • hiddenknight821hiddenknight821 Member Posts: 1,209 ■■■■■■□□□□
    NewManSoon wrote: »
    Maybe I missed it, but did anyone suggest to try a new console cable?

    icon_eek.gif I would hate to embarrass you guys, but this guy might be right about this one. I am sure we can all agree that we always overlook the most simplest thing. They are so damn hard to identify sometimes. :D
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    phoeneous wrote: »
    In my opinion, two switches and two routers. 2950 and 2620XM.

    Saved in NVRAM!
    Maybe I missed it, but did anyone suggest to try a new console cable?

    Well, actually I did try with 3 cables, 2 I made them myself and another I borrowed from a teacher, I tried to plugged them each one at a time, and all of them stopped just in the exact output. However I think it would be good to try with a new one
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    Not really, I was not aware of that technic and I do not have a multimeter at this moment...

    I'm thinking of buying a new console cable instead of the multimeter, or would you recommend the multimeter instead
  • LazydogLazydog Member Posts: 19 ■□□□□□□□□□
    Buy the cable. Wish you would have stated this in the beginning. We would have told you to buy a cable.
    --

    Regards
    Robert

    Smile....... it increases your face value!
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    Lazydog wrote: »
    Buy the cable. Wish you would have stated this in the beginning. We would have told you to buy a cable.

    Yeah, my bad, I guess I had to learn it the hard way icon_sad.gif

    I'll buy it online in the next days, because I couldn't get it at a local store.
    What does your console cable look like? Can you take a picture of it?

    Not very pretty icon_redface.gif Sure I can, and I will post it in a couple of hours.

    Ps: Please do not laugh too hard, the poor cable has feelings too icon_eek.gif what up!
  • ccnacertified2000ccnacertified2000 Member Posts: 27 ■■□□□□□□□□
    Have you tried rommon mode?
    A console cable is just a rollover cable, so one side has pins 1-8 and the other has 8-1.

    So do this, keep your computer and terminal program open and connected console cable to the switch. Unplug the switch (to power off) and wait 10 seconds and plug it in. This starts the boot process. Immediately issue control break to the terminal (try a few times and try it early or late in the process if it doesn't break immediately), this will break out of the booting and into the rommon mode. If this works, then your console is working and everything should work if you fix the configs. In this situation, you should stay in the rommon mode, and do the password recovery procedure (it just skips the config file so you can boot in and do stuff).
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    These are the pictures of my cable.

    foto0065k.jpg

    foto0069p.jpg

    foto0070tk.jpg

    And this is the manual I used for the db9 connector, the RJ-45 side said it could be used a 568B standard, so I did.

    foto0050z.jpg
    Have you tried rommon mode?
    A console cable is just a rollover cable, so one side has pins 1-8 and the other has 8-1.

    So do this, keep your computer and terminal program open and connected console cable to the switch. Unplug the switch (to power off) and wait 10 seconds and plug it in. This starts the boot process. Immediately issue control break to the terminal (try a few times and try it early or late in the process if it doesn't break immediately), this will break out of the booting and into the rommon mode. If this works, then your console is working and everything should work if you fix the configs. In this situation, you should stay in the rommon mode, and do the password recovery procedure (it just skips the config file so you can boot in and do stuff).

    Not really, but bucause I wasn't aware of that! Sounds terrific, I'll google for it and hope to show some results soon enough.
  • gramacorpgramacorp Member Posts: 39 ■■■□□□□□□□
    Hmmm... from the look of those pics your cable might be suffering from some cross-talk. not sure if the copper needs to be exposed that much. also the twist in the wire pairs needs to be shorter... maby a 1/4 inch. This could be your problem.

    sigh... that is an odd looking console cable.
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    Hmmm... from the look of those pics your cable might be suffering from some cross-talk. not sure if the copper needs to be exposed that much. also the twist in the wire pairs needs to be shorter... maby a 1/4 inch. This could be your problem.

    sigh... that is an odd looking console cable.

    Yeah... bottom line... You must get a new cable! icon_wink.gif

    I'll just send you a cable. PM me an address and I'll send it, postage is on me. Seriously.

    Speaking of which... hehe just kiddin' guys, I'll get a new cable I promise that, I really thought it was okay, I have one borrowed from a teacher (not home made), and gives me the same result, but of course that's not a guarantee, guess I shot myself in the foot icon_sad.gif

    Ps: I think that would require international shipping icon_lol.gif
  • NewManSoonNewManSoon Banned Posts: 53 ■■□□□□□□□□
    phoeneous wrote: »
    I'll just send you a cable. PM me an address and I'll send it, postage is on me. Seriously.


    Best post ever.
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    What's up guys, after so many days, I just received my new brand cisco console cable, I plugged it in to my switch and... Unfortunately I got the same result icon_sad.gif

    Seems after all to be a faulty console port?
  • Asif DaslAsif Dasl Member Posts: 2,116 ■■■■■■■■□□
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    lol. you got it ;)
  • PristonPriston Member Posts: 999 ■■■■□□□□□□
    do the pins inside the console port look bent or anything?
    A.A.S. in Networking Technologies
    A+, Network+, CCNA
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    phoeneous wrote: »
    What's happening? And don't you still have telnet access?

    Yes I do, in fact I'm using that switch for a 'mini lab' and gives me 100Mbps through ethernet which is ok
    do the pins inside the console port look bent or anything?

    Don't know, but I'll definitely check that out, thanks for the advice.
  • blackenedblackened Member Posts: 30 ■■□□□□□□□□
    Priston wrote: »
    do the pins inside the console port look bent or anything?

    mm not really, looks kind of flawless, what I do notice is that the whole thing moves a bit, don't know if that's normal, but anyways can't hurt to say it I guess.
  • HmrhedHmrhed Registered Users Posts: 1 ■□□□□□□□□□
    I know this thread is a year old, but i just had the same issue with a 2950 (no keyboard input thru hyperterminal) and what fixed it was... ...taking the cover off and wiggling the console ribbon cable where it connects to the main board. Didn't remove it, just moved the ribbon in the connection a bit. Keyboard works great now.
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