PoweConnect 6024 & 5324 http interface and telnet

Question

I have Dell PowerConnect 6024 & 5324, They are working very well now only except I can not connect the switch with telnet or using http.  They are working in my core network. Please tell me how can I fix that. The detail information of my switch is as follows:   PowerConnect 6024:   SW version 2.0.0.01   PowerConnect 5324:   SW version 1.0.0.45                                       Boot version 1.0.0.21                                       HW version  00.00.02    Waiting for your early reply   Thanks

yang tyo · Answer

For about this kind of issue, I have met several times, and everytime, I have the switch rebooted and fixed that. But when this network move to my running system, I cannot reboot that in future, so I have to fix this problem now.

Waiting for your immediately reply

Thanks

DELL-Cuong N. · Answer

I suggest you look at your network.  Perhaps you are having some other switching or routing problem.  When you think you have problem connecting to your switch, try to 'ping' the switch from your workstation. If you can't ping it then you likely have a connectivity issue between your workstation and the switch.  When that happens just connect directly to the switch and try from there.  If you can communicate when directly connected to the switch but not remotely then I think you need to check for switching or routing problem within your network.C Cuong.

yang tyo · Answer

Thanks for your soon reply.

I have already login my switch with telnet and http, but in a few days later, I can not access it anymore, maybe sometime I can use telnet only or sometime both of telnet and http can not connect the switch.

DELL-Cuong N. · Answer

Have you created a user on your switch? Did you add an IP address for management on VLAN 1 on your switch?  Did you setup your user with the correct access level (level 1 user cannot access the web interface)?  Does your workstation have an IP address in the same subnet as the management IP on the switch?  Can you ping the switch from the workstation where you are trying to access the switch?   I have many 6024's and 5324's on my network, all manageable through telnet and HTTP with no problem.  You might want to check your configuration as suggested above.   Cuong.

yang tyo · Answer

Thanks

Now, I can ping my PowerConnect 6024, but I can not login with telnet or http, and the switch is working well, I checked that from snmp network monitor, it do have the traffic.

I met this kind of issues for several times, always I reboot the switch to fix this problem, but this is the bad way for me in future.

Because I can reconnect my switch using telnet or http just after reboot the switch, so I donot think there are trouble in the network. please help me

DELL-Cuong N. · Answer

Do you have a user configured? Is the user a level 15 user? Let make sure its not configuration first. Otherwise I'm not sure what's the problem could be. BTW what kind of web browser are you using - IE, Firefox, etc and what version.

Cuong.

DELL-Cuong N. · Answer

I'm not sure what the problem can be. Maybe you have a duplicate IP or MAC on your network. If you have duplicate IP then it could cause problems such as this.

Try this while your switch is in the problem state:

Disconnect the switch from your network.
Connect your PC directly to the switch and try to login - wait about 1-2 minutes for the connection to be established if you have STP enable (it takes up to 2 minutes for the conversion of STP is on).

If you have a duplicate IP in the network then maybe your router is getting confused?

Cuong.

yang tyo · Answer

Thanks for your quickly reply.

Because I have logged in my switch using telnet or http just after reboot it, so I think I have the authority to login switch HTTP interface, the level 15. as well as telnet.

The web Browser which I am using now is Microsoft IE 6.0

Thanks

yang tyo · Answer

Thanks

I am sure this switch snmp information should be unique. But right now, I can not connect it from telnet and http to it. This switch is located my datacenter in downtown, so I can not do directly connect it with serial cable.

Do you have already received this kind of problem within your customer support? For about the SW version. I think it should be not too later.

Thanks

yang tyo · Answer

I try to find out the possibility of duplicate ip, but I can find that. In the other hand, I checked my snmp monitor of my switch, it is working fine. So I think the ip address should be OK, because the snmp information should be taken from the switch's ip address.   Thanks

DELL-Cuong N. · Answer

I have never seen a problem such as this before. I'm not support however (I'm in engineering) so I don't have all the information support people might have. You can call support if you like. Maybe they can help you. I'm at a complete lost as to why you have this problem. As I mentioned, I have lots of these switches and I have never seen this problem.

Cuong.

DELL-Cuong N. · Answer

I'm at a lost. Are you sure your SNMP response comes from the switch? Try setting some configuration on the switch to make sure it is unique - like hostname (go to config more and set hostname using "hostname YOURHOSTNAME") then use SNMP to get sysName parameter from the switch and see if it matches. Query it several times - if it changes between your queries then you may have a duplicate IP which is causing the routing information in your network to ping-pong.

Also did you try my suggestion of connecting directly to the switch to see if the switch response normally? If after this you still can't get it to work then I'm at a lost. I'm not sure what the problem can be.

Cuong.

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PoweConnect 6024 & 5324 http interface and telnet

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