We are about to extend our network on Site-A from the 3rd floor 5th floor we are going to do that by running 2 fibre channels from the existing comms room on 3rd floor up to a new small comms cabinet on 5th floor.
At each end of the fibre cable runs we will have a Cisco 3560G series 48-port PoE switch. Each switch will have two "Cisco GE SFP, LC connector SX transceiver GLC-SX-MM"s which are the fibre modules to patch the fibre cables in to.
The two switches are currently being used in Site-B so will need to be re-configured onto the Site-A with 10.5.1.x subnet.
I am confident for the re-configuration but for the fibre connections I havn't done it before. Could any one please guide me what will be the configuration commands to configure fibre connections. ??
Say I plug the cables and connectors, will that configuration be on Gigabit ports?
Your help will be highly appreciated. As I have 2 days left to accoplish this task.
Thanks in Advance.
If you are using only VLAN 1, then you do not need to make any changes. Just
make sure that the ports are up once you connected the cables.
If you are using a single VLAN, then there is no special configuration
needed on the interface. You can connect the fiber directly and it should
work. Please make sure that the port is assigned to the proper vlan (the one
you are using).
If you are just extending the network without any new VLAN creations at the new location, then you do not need to do anything. Just configure the fiber port to be in the same vlan as rest of the network will be. If you have multiple VLANs, then you need to configure the ports as trunks.
Interface gi 0/49
Switchport trunk encapsulation dot1q
Switchport mode trunk
This configuration needs to be entered on both sides to ensure that they both act as trunks and allow all VLANs. In general, I would suggest using the trunk configuration as it would allow you to expand in the future without any service interruptions.
Hope this helps.