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Stupid EASY Question for Someone...

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Denda

MIS
Oct 30, 2001
237
US
I don't know what's wrong with me, but I am having a heck of a time getting a switch config'd to use.... The switch is plugged into the network via FastEthernet0/1 to a quad, but shows down/down, the VLAN is up/up, the port I have a pc connected to is up/up. What the heck am I missing?? I thought maybe the port modules were bad, so I replaced the switch with a new one and the problem still exists..

Current configuration:
!
version 12.0
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname TMS06
!
enable secret 5 $1$DG70$JJVAVEMOQ7LadRz2EmgYk1
!
!
!
!
!
clock timezone EST -5
clock summer-time EDT recurring
spanning-tree uplinkfast
!
ip subnet-zero
no ip source-route
no ip finger
no ip domain-lookup
ip domain-name tmsco.com
!
cluster commander-address 0001.9634.7640 member 2 name TMSETHER
!
!
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface VLAN1
ip address 10.53.1.15 255.255.255.0
no ip directed-broadcast
no ip route-cache
!
ip default-gateway 10.53.1.1
snmp-server engineID local 0000000902000008E315D4C0
snmp-server community tmssnmp RO
snmp-server community tmssnmp@es2 RO
snmp-server community private RW
snmp-server community public RO
!
line con 0
transport input none
stopbits 1
line vty 0 4
login
line vty 5 15
login
!
end

Any ideas?

 
sorry, forgot to add... The switch is a CISCO Catalyst 3512XL.
 
Can you clarify what you mean by 'The switch is plugged into the network via FastEthernet0/1 to a quad'. What do you mean by quad?

If you're seeing fa0/1 as down/down it generally means you have a physical fault which could be either abad or inappropriate cable connected to the 'quad' or the port on the switch is faulty. I'd try a different cable initially and depending on the pin configuration of the 'quad', try a different type of cable (i.e. if you're using a straight through cable at the moment, try a crossover cable instead or vice versa)
 
A quad is the cat5 plugs in the wall (4 plugs - quad). The cable is good since I use it directly with other pc's to the network. I'll try a crossover and see what happens. Don't know why that would work, when I could use this same cable before and everything worked fine.
 
Well..... The crossover cable worked... Thank you! Can you maybe explain why I need a crossover cable now? I just config'd a 3560 a month ago with no crossover cable and it worked fine... Thank you again..
 
I wasn't sure from your problem description whether you had a faulty cable or an incorrect cable (i.e. a straight when you should be using crossover and vice versa). However I did know you had some kind of physical problem(which is usually the cable) as you reported a down/down on the interface.

What kind of cable you have to use depends on the wiring configuration deployed and/or the device connecting to that port. As you said, PC to switch is usually a straight cable (assuming the wall wiring is straight as well of course!). However switch to switch is usually a crossover.

On further review of your original post, I'm not 100% certain what the switch on fa0/1 is physically connected to. You mentioned 'plugged into the network' which, if another switch, usually requires a crossover cable.

Hope this helps
 
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