Cisco Systems Problem Configuring Access Mode on an Interface on a Catalyst 3500XL

Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Problem Configuring Access Mode on an Interface on a Catalyst 3500XL tman 05-09-08
Posted by tman on May 9, 2008, 2:35 pm
Please log in for more thread options
I want to configure several FastEthernet interfaces on a Catalyst
3500XL switch so they will not trunk. I used the following command:

conf t
int fa0/1
switchport mode access

It takes the command o.k. but when I do a sh run it does not show that
the interface is in access mode. Moreover, when I connect another
switch to fa0/1 with at cross-over cable, it trunks.

When I use the same command on a Catalyst 2950 switch, this is what I
see when I do a sh run:

interface FastEthernet0/1
switchport mode access

Am I missing something?

Thanks in advance.

Posted by Doug McIntyre on May 9, 2008, 3:40 pm
Please log in for more thread options
>I want to configure several FastEthernet interfaces on a Catalyst
>3500XL switch so they will not trunk. I used the following command:

>conf t
>int fa0/1
>switchport mode access

You need to turn off Dynamic Trunking Protocol

int fa0/1
switchport mode access
switchport nonegotiate


Posted by tman on May 9, 2008, 4:56 pm
Please log in for more thread options
> >I want to configure several FastEthernet interfaces on a Catalyst
> >3500XL switch so they will not trunk. =A0I used the following command:
> >conf t
> >int fa0/1
> >switchport mode access
>
> You need to turn off Dynamic Trunking Protocol
>
> int fa0/1
> =A0switchport mode access
> =A0switchport nonegotiate

I tried it but there is no such command as switchport nonegotiate.
The only commands under switchport are:
access
mode
multi
priority
trunk
voice

I tried the following command in interface config mode:

no negotiation auto

It returns the message: This command is not supported for
FastEthernet0/1


Posted by Merv on May 9, 2008, 5:08 pm
Please log in for more thread options
to disable trunking on a 3500XL, try the command

no switchport mode





Posted by tman on May 9, 2008, 6:51 pm
Please log in for more thread options
> to disable trunking on a 3500XL, try the command
>
> no switchport mode

I already tried that one. It doesn't seem to do anything. I can
still plug another switch into the port and it lights up.

Similar ThreadsPosted
Problem Configuring Access Mode on an Interface on a Catalyst 3500XL May 9, 2008, 2:35 pm
Using switchport mode access vlan x and switchport mode trunk on the same interface July 27, 2006, 9:43 am
Configuring management interface on Catalyst 4507 August 24, 2005, 8:41 am
Catalyst 3500XL Software November 27, 2006, 8:30 am
up/down/up/down connection on a Cisco Catalyst 3500XL January 25, 2007, 9:17 am
Rate limiting on catalyst 3500xl series September 21, 2005, 5:02 am
Using promiscuous mode on a catalyst vs. muliple dmzs on a firewall December 9, 2006, 12:54 pm
Configuring Catalyst 3750 October 26, 2006, 3:13 pm
Configuring VLANs on Catalyst 2960G May 30, 2007, 1:57 pm
Switchport mode access ?? April 13, 2006, 6:39 pm
Is there a "dry run" mode for access lists before apply May 22, 2008, 6:47 am
Default privilege mode for telnet access June 19, 2006, 9:55 am
Configuring a 760 for internet access February 10, 2006, 2:23 pm
Need Help Configuring Static NAT and Access List June 17, 2008, 9:24 pm
Configuring Access for L2TP and PPTP Clients on PIX 506 E February 2, 2006, 6:44 am