07-15-2009 01:30 AM - edited 03-06-2019 06:46 AM
Hi,
We have Internet connection via Fiber but the Router do not have a Fiber module.
Router is 2800 series
I have a spare 2960 switch with SFP module.
is there any solution
07-15-2009 02:22 AM
"is there any solution "
Yes, with your equipment, one possible solution would be to terminate the fiber connection on the 2960's SFP port and then connect the 2800 and 2960 together via copper Ethernet.
Doing the prior, you could also define more than one VLAN on the 2960. If you do, you just need to insure the router and fiber connection are members of the same VLAN.
If you find you're short of Ethernet ports on the 2800, you can also VLAN trunk between the 2800 and the 2960.
07-15-2009 03:54 AM
Thanks for your reply.
Are you aware of cisco doc link explaining what you stated.
On Router 2800 I have two fastethernet ports and 2960 switch is 24 ports.
I will install the SFP on 2960 switch, and on port fa 0/20 I would configure
switchport trunk encapsulation dot1q
switchport mode trunk
on router 2800
fa 0/0
switchport trunk encapsulation dot1q
switchport mode trunk
How I will configure on router 2800 for service provider configuration and my LAN configuration.
07-15-2009 04:07 AM
Hello Ronald,
if f0/0 on c2800 is a "router port" you need to use subinterfaces
int f0/0
no ip address
int f0/0.10
enc dot1q 10
ip address 10.10.10.1 255.255.255.0
int f0/0.20
enc dot1q 20
ip address 10.10.20.1 255.255.255.0
and so on
Hope to help
Giuseppe
07-15-2009 04:46 AM
"Are you aware of cisco doc link explaining what you stated."
Sorry, don't have Cisco reference doc at hand expaining all I suggested.
"How I will configure on router 2800 for service provider configuration and my LAN configuration. "
Giuseppe answered that in his post, but remember, you should only need to do this if you run out of interfaces on your router. You could, for instance, have each router port still connected to the 2960 switch. Each in different VLANs on the switch, with the switch defining the ports as access ports.
07-15-2009 07:10 PM
Hi Ronald,
2960 will support only Dot1Q encapsulation so you don't need the command switchport trunk encapsulation dot1q.
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