Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations dencom on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!

No switchport

Status
Not open for further replies.

RNF0528

MIS
Apr 4, 2006
115
US





We have a Cisco 3550 and a port has been set to no switchport access. No sure why but the PC connected to that port is no longer wokring. Is there a command to turn switchport access mode back on. I tried Cisco`s site but all the commands i come up with dont work. Any help would be great. Thanks

Not working port below
____________________________________________
interface FastEthernet0/41
no switchport
no ip address
spanning-tree portfast
_____________________________________________



Working port below
---------------------------------------------
interface FastEthernet0/39
switchport mode access
no ip address
duplex full
speed 100
spanning-tree portfast
 
What happens when u write in the configs from f0/39 into the f0/41 interface...

AJ

===

Fatman Superstar (Andrew James)

CCNA
 
It says Command rejected: FA0/41 not a swiching port.

 
I assume you have tried the command "switchport" on its own?

===

Fatman Superstar (Andrew James)

CCNA
 
No Just did it and i works. I tried everything in the world to do with switchport access, mode, vlan. Was thinking to far into it. Thanks for the help!!
 
No worries, now you have toggled the port, you should be able to mark it back as switchport access etc.

Ta

AJ

===

Fatman Superstar (Andrew James)

CCNA
 
By default the interface on 3550s are L3 interfaces. AKA = no switchport..By using the command switchport, this enables L2 functionality...
 
the ports are 2 ways either a switchport (layer 2) or a routed port (no switchport) layer 3 port which you use a ip address on .
 
Hi,

come in halfway through this, but surley if you have a no switch port command on your Port, then its telling the switch this is a l3 interface and you need an Ip address configured on that port?????

Lee.

LEEroy
MCNE6,CCNP,CWNA,CCSA,Project+
 
P.S it is very early in the morning and I may be a little confused.....

LEEroy
MCNE6,CCNP,CWNA,CCSA,Project+
 
That is correct . There is really 2 different ways to do the same thing on a l2/3 switch , you can either put an address on a routed port or you can create a layer 3 SVI and put the address on that and then put a switchport in that vlan that you created with that sVI creation , it will do the same thing . If you do it this way this allows you the freedom to runn multiple vlans down one link (trunk) if desired , if that is a requirement . Really depends on what you are trying to do .
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top