Cisco 2950 woes....

S

Sniper|3d-R|

Supreme [H]ardness
Joined
Oct 30, 2000
Messages
5,284
I have comcast net connection that connects to a surfboard 5100b, which connects to a linksys router. From the router I have 2 cat-5 cables, One that connects to a desktop thats connected to the net, and another cat-5 cable that connects to my cisco 2950. I have my desktop and my lappy that connects to the 2950 via 2 more cat-5 cables.

Everything has been working great, up unitll last night. I just lost complete connectivity. The link light no longer turns on when its in port 1-24 as a uplink from the router. Yet I can take the same cable and plug it directly into my lappy and get full net access(what im doing now). I have changed nothing on the router. I have powered it on/off etc... I was actually playing a game, and then all of a sudden it was like someone pulled my cable..

Im working on a new config to see if that will change anything... But anyone else have any ideas? Im stumped here.

Below is version and running config info.

Code: 
CISCO2950#sh ver                
Cisco Internetwork Operating System Software                                            
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(11)EA1, RELEASE SOFTWARE                                                                               
(fc1)     
Copyright (c) 1986-2002 by cisco Systems, Inc.                                              
Compiled Wed 28-Aug-02 10:25 by antonino                                        
Image text-base: 0x80010000, data-base: 0x80528000                                                  

ROM: Bootstrap program is CALHOUN boot loader                                             

CISCO2950 uptime is 9 minutes                             
System returned to R                   
System image file is "flash:/c2950-i6q4l2-mz.121-11.EA1.bin"                                                            

cisco WS-C2950G-24-EI (RC32300) processor (revision E0) with 20402K bytes of mem                                                                                
ory.    
Processor board ID FHK0637Y1VU                              
Last reset from system-reset                            
Running Enhanced Image                      
24 FastEthernet/IEEE 802.3 interface(s)                                       
2 Gigabit Ethernet/IEEE 802.3 interface(s)                                      

32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:0A:F4:5A:4F:C0
Motherboard assembly number: 73-7280-05
Power supply part number: 34-0965-01
Motherboard serial number: FOC06360QDS
Power supply serial number: PHI06320CP2
Model revision number: E0
Motherboard revision number: A0
Model number: WS-C2950G-24-EI
System serial number: FHK0637Y1VU
Configuration register is 0xF

Running Config
Code: 
CISCO2950#sh run                
Building configuration...                         

Current configuration : 1607 bytes                                  
! 
version 12.1            
no service pad              
service timestamps debug uptime                               
service timestamps log uptime                             
no service password-encryption                              
! 
hostname CISCO2950                  
! 
enable secret 5 $1$ZYkM$oH9vvEMnFMaYsWqnRFaOc0                                              
enable password pw                         
! 
ip subnet-zero              
! 
spanning-tree extend system-id                              
! 
! 
interface FastEthernet0/1                         
 no ip address              
! 
interface FastEthernet0/2                         
 no ip address              
! 
interface FastEthernet0/3                         
 no ip address              
! 
interface FastEthernet0/4                         
 no ip address              
! 
interface FastEthernet0/5                         
 no ip address              
! 
interface FastEthernet0/6                         
 no ip address              
! 
interface FastEthernet0/7                         
 no ip address              
! 
interface FastEthernet0/8                         
 no ip address              
! 
interface FastEthernet0/9                         
 no ip address              
!
interface FastEthernet0/10
 no ip address
!
interface FastEthernet0/11
 no ip address
!
interface FastEthernet0/12
 no ip address
!
interface FastEthernet0/13
 no ip address
!
interface FastEthernet0/14
 no ip address
!
interface FastEthernet0/15
 no ip address
!
interface FastEthernet0/16
 no ip address
!
interface FastEthernet0/17
 no ip address              
! 
interface FastEthernet0/18                          
 no ip address              
! 
interface FastEthernet0/19                          
 no ip address              
! 
interface FastEthernet0/20                          
 no ip address              
! 
interface FastEthernet0/21                          
 no ip address              
! 
interface FastEthernet0/22                          
 no ip address              
! 
interface FastEthernet0/23                          
 no ip address              
! 
interface FastEthernet0/24                          
 no ip address              
! 
interface GigabitEthernet0/1                            
 no ip address              
! 
interface GigabitEthernet0/2                            
 no ip address              
!
interface Vlan1
 ip address 192.168.0.110 255.255.255.0
 no ip route-cache
!
ip http server
!
!
line con 0
line vty 0 4
 password pw
 login
line vty 5 15
 password pw
 login
!
end
 
you dont need any config to make it work...its a L2 switch.

so from Router > 2950 you get no link lights on the 2950? Do you get lights if you connect your computer to the 2950?
 
have you tried a crossover to connect the router (switchport) to your 2950?
 
For one reason or another its not working with a linksys BEFSR41(v1.0).. I replaced that with a Linksys RT31P2 router, rebooted the cable modem and the switch again and POOF got a net light on the switch, allpc's back online thru the switch.. odd:confused: :)

It's weird as I was using the BEFSR41(yea i know its old) at a buddies house for file transfering and there was no probs. Although I did not have a switch in between the router and my PC, but still I know the router does work.. its fully functional.

jvlazzar; Yeah I assumed I did not need to do anything special as it was a L2 switch.. Thus my reason for concern and being stumped...

unix_foo: Dont have one, so no :(
 
jvlazzar said:
you dont need any config to make it work...its a L2 switch.

so from Router > 2950 you get no link lights on the 2950? Do you get lights if you connect your computer to the 2950?
Click to expand...

++



also, check the integrity of your cat5e cables (those sometimes can cause problems that take forever to find)
 
I think you are looking to hard, start with the easy stuff, change cables. Then do a sh int fa0/x on the switch to see if you are logging errors or anything.
 
Couldn't agree more w/ WES.

Had a lady today who couldn't connect to the web. Checked everything (switch configuration, ensured it was patched in at the IDF, ipconfig release/renew, etc.)

The problem ended up being the patch cord at her desk.
 
You must log in or register to reply here.
Back
Top