Hello Cisco Experts,
I’m working on teaching myself networking. I currently do not have any actual Cisco equipment (I’m going to get some switches off ebay when I get some funds), but I do have Cisco Packet Tracer, so I’m using it to work through some labs. I’m having some trouble wrapping my head around a vlan configuration and I’m not sure if the problem is an actual issue or a Packet Tracer issue. I have two switches connected back to back via a cross-over cable. The configuration on each switch is as follows:
SW1# config t
SW1(config)# interface vlan 999
SW1(config-if)# ip address 10.99.99.1 255.255.255.248
SW1(config-if)# no shut
SW2# config t
SW2(config)# interface vlan 999
SW2(config-if)# ip address 10.99.99.2 255.255.255.248
SW2(config-if)# no shut
When I do a show ip interface brief, I see vlan 999 on both switches, but it is in a down down state. My questions are:
1. Is this a limitation of Packet or would the vlan interface be down on two real switches?
2. Is there a way for me to force this vlan interface into an up up state?
Thanks in advance for your help.