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PowerConnect 3548P ports bouncing - link up/down

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Latest post 10/28/2009 04:59 PM by schris403. 2 replies.
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Joined on 03/31/2003
Posts: 12
Points 25

PowerConnect 3548P ports bouncing - link up/down

Over the last month or so we have been having some network issues as it relates to ports going down and up all by themselves. The messages are like this:

 11      2147483645     27~Oct~2009 05:27:48    Info         %LINK-I-Up:  1/e22      

12      2147483646     27~Oct~2009 05:27:46    Warning      %LINK-W-Down:  1/e22

This will continue randomly and the ports stay only down for about 2 seconds as you can see above. I have started over on the configuration by loading defaults and still no luck. Users have been reporting that their computers are loosing link every once in awhile. I have two 3548P switches in a stack and both switches have this occur. Any ideas what would be causing this? Does the configuration file look ok below? Thank you for anyone's help!

 

Configuration File:

interface range ethernet 1/e(3-47),2/e(1-38,40-48)

switchport mode general

exit

vlan database

vlan 2

exit

interface ethernet 1/e1

switchport access vlan 2

exit

interface range ethernet 1/e(3-47),2/e(1-38,40-48)

switchport general allowed vlan add 2

exit

interface vlan 2

name voice

exit

voice vlan oui-table add 0001e3 Siemens_AG_phone________

voice vlan oui-table add 00036b Cisco_phone_____________

voice vlan oui-table add 00096e Avaya___________________

voice vlan oui-table add 000fe2 H3C_Aolynk______________

voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone

voice vlan oui-table add 00d01e Pingtel_phone___________

voice vlan oui-table add 00e075 Polycom/Veritel_phone___

voice vlan oui-table add 00e0bb 3Com_phone______________

interface vlan 1

ip address 192.168.0.190 255.255.255.0 

exit

ip default-gateway 192.168.0.151

aaa authentication enable default line 

 

aaa authentication login default line 

 

line telnet

password 39a4a198a38f04a90d61c48a57f4b78d encrypted

exit

line ssh

password 39a4a198a38f04a90d61c48a57f4b78d encrypted

exit

line console

password 39a4a198a38f04a90d61c48a57f4b78d encrypted

exit

username admin password 39a4a198a38f04a90d61c48a57f4b78d level 15 encrypted

username root password 39a4a198a38f04a90d61c48a57f4b78d level 15 encrypted

snmp-server community Dell_Network_Manager rw view DefaultSuper 

clock timezone -8

clock summer-time recurring usa 

clock source sntp

sntp server 128.101.101.101

ip name-server  192.168.0.3

snmp-server set rlEventsDeleteEvents  rlEventsDeleteEvents 5

  • Post Points: 20

2 Replies:

Joined on 04/02/2007
Posts: 578
Points 4,399

Re: PowerConnect 3548P ports bouncing - link up/down

Post the output of "show interface status"

Does the device connected to 1/e22 have any clues in its logs?

  • Post Points: 20
Joined on 03/31/2003
Posts: 12
Points 25

Re: PowerConnect 3548P ports bouncing - link up/down

Upon further examination, I found that this is only occurring on 1 of the switches in the stack. The other switch does not have a single instance of this occurring so I'm getting it exchanged out under warranty to see if its a hardware issue. 

Chris

  • Post Points: 5
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