12-16-2010 09:21 PM - edited 03-06-2019 02:35 PM
Hi,
I got a Cisco 3548 switch with Version 12.0(5)WC5 image. I know it is an old image, needed to be update. But I am not at the position to update it now.
I encounter two problems:
1. The interface vlan1 is always in "shutdown" state. see the config below. If I do "no shut", switch accepts the command, but doesn't actually remove that line with "shutdown".
interface VLAN1
ip address 10.10.0.10 255.255.255.0
no ip directed-broadcast
no ip route-cache
shutdown
end
switch1#sh int vlan 1
VLAN1 is up, line protocol is down
switch1#sh vlan bri
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/3, Fa0/4, Fa0/5, Fa0/6,
2. I can't configure more vlan
switch1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
switch1(config)#vlan 103
^
% Invalid input detected at '^' marker.
The "sh int trunk" doesn't work neither.
Can any one advise what is going on with this switch?
Thanks
Stro
12-16-2010 09:59 PM
Hi,
CISCO 3548 switch is an L2 switch, at a time only one L3 vlan interface will be up.That interface can be used to manage the switch.
If you want to create more that one Layer 2 vlan, then go to vlan database mode, then try to configure.
#config t
(config)#vlan database
(config-vlan)#vlan 123
Thanks
Karuppu
12-17-2010 06:28 AM
switch1#sh int vlan 1
VLAN1 is up, line protocol is down
This indicates the Vlan is not longer in shutdown mode contrary to what you said.
The reason the Vlan isn't up/up is that you need a device connected to a port that participates on Vlan1.
Regards,
Edison.
12-17-2010 06:37 AM
Follow Karuppu's advice. You cannot create vlans in global mode on a switch that old . You have to create any new vlans in vlan database mode. If you no shut vlan 1 then that shutdown command should dissapear and it would be in a up/down state until you get a active link in the vlan . If it is not dissapearing then make sure there is not already another L3 SVI configured in the up state , you can only have a single SVI active because it is only used to manage the switch.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide