Solved

Configuring Gigabit ports on Cisco 4506

Posted on 2006-10-31
5
771 Views
Last Modified: 2008-01-09
Hi all,

I currently have a Catalyst 4506 and I have two open fiber gigabit ports, which I'd like to use.  All of my other ports and all my Vlans are already configured.  This was done by an outside complany, so now I'm trying to expand upon what they did, but I'm having some difficulty.  Here is a section of the current config:

interface GigabitEthernet2/6
 description "Trunked Link to Lib"
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,40,60,70
 switchport mode trunk
!
interface GigabitEthernet3/1
 switchport trunk allowed vlan 1,20,60,70
 shutdown
!
interface GigabitEthernet3/2
 description Not on Visio
 shutdown

Interfaces 3/1 and 3/2 should look like interface 2/6 with the exception of a different vlan (172) and a different description.  I've tried going into configuration mode and making changes to the interface, but they never seem to actually change anything, as this is the same config as it's been.  I'm relatively new to this, and need some help.  If anyone can tell me what commands to use to change this config, I'd greatly appreciate it.  Again, it should mirror interface 2/6 just with a different decscription, and with vlan 172 only.  

Thanks.
0
Comment
Question by:iamcheese
  • 3
  • 2
5 Comments
 
LVL 28

Accepted Solution

by:
mikebernhardt earned 500 total points
ID: 17845316
interface GigabitEthernet3/1
description blah
switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 172
 no shutdown
!
interface GigabitEthernet3/2
description more blah
switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 172
 no shutdown

there is both a running config (in memory) and a startup config (in NVRAM). when you say nothing's changed, are you typing "show config" or "show runn"
0
 
LVL 28

Expert Comment

by:mikebernhardt
ID: 17845321
Oh- if vlan 172 isn't already configured, you need to do it this way:
config t
vlan 172
interface GigabitEthernet3/1
description blah
switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 172
 no shutdown
!
interface GigabitEthernet3/2
description more blah
switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 172
 no shutdown
end
0
 
LVL 1

Author Comment

by:iamcheese
ID: 17847707
I've been using show config.  I didn't check show runn yet, but will do so first thing tomorrow morning.  How do you save the current running config to the startup config, or is that unnecessary?
0
 
LVL 1

Author Comment

by:iamcheese
ID: 17849230
Thanks a lot mike, that worked perfectly, and it was because i was looking at the startup config instead of the running config.
0
 
LVL 28

Expert Comment

by:mikebernhardt
ID: 17851615
You do need to save the changes or they will be lost if the switch reboots. you can type either "write mem" or "copy runn start" while in enable mode. If you use the latter, it will ask you a few questions. Just hit enter to all of them.
0

Featured Post

Free Tool: Postgres Monitoring System

A PHP and Perl based system to collect and display usage statistics from PostgreSQL databases.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Fortigate 100D NTP Issue 4 105
Is WiFi half-duplex or Full -duplex 4 60
Receiving wifi on an underground station 22 94
Connectivity issues after power outage 5 33
Getting hacked is no longer a matter or "if you get hacked" — the 2016 cyber threat landscape is now titled "when you get hacked." When it happens — will you be proactive, or reactive?
Shadow IT is coming out of the shadows as more businesses are choosing cloud-based applications. It is now a multi-cloud world for most organizations. Simultaneously, most businesses have yet to consolidate with one cloud provider or define an offic…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question