Hi
I have just purchased some WS-C3850-12S switches ..... i am trying to create a number of straightforward 1 gig uplinks from 2960 switches using fibre and sfps.
I am confused which ports i am suposed to configure the trunks on as the sh runn shows the below when i plug sfps into port 1/0/1 and 1/02 ......
Ive read up a bit - is it that if i want 1 gigabit ethernet i configure port 1/1/1 and if i want ten gig i configure port 1/1/1 and 1/1/2 ...why two ports for ten gig are these port-channels to make 10 gig ......or am i just losing the plot ?
be great if someone hasa 2960 with trunk port and an sfp iplinking to one of these to send a basic config
Any help appreciated as the internet is not littered with examples :)
many thanks
interface GigabitEthernet1/0/1
!
interface GigabitEthernet1/0/2
!
interface GigabitEthernet1/1/1
description Link core to building A
switchport trunk allowed vlan 10-15,20-22
switchport mode trunk
!
interface GigabitEthernet1/1/2
!
interface TenGigabitEthernet1/1/1
!
interface TenGigabitEthernet1/1/2
!
interface TenGigabitEthernet1/1/3
!
interface TenGigabitEthernet1/1/4
