vlan-to-vlan local-switching

VLAN-to-VLAN Local Switching

R3:
!
interface FastEthernet0/0.345
 encapsulation dot1Q 345
 ip address 192.168.1.3 255.255.255.0
!

R1:
!
FastEthernet0/0.345
 encapsulation dot1Q 345
 ip address 192.168.1.1 255.255.255.
!
R2:
!
interface FastEthernet0/0.345
 encapsulation dot1Q 345
!
FastEthernet0/0.123
 encapsulation dot1Q 123
!
connect ethvl-to-ethvl FastEthernet0/0.123 FastEthernet0/0.345
!

R2#show connection

ID   Name            Segment 1              Segment 2                  State  
================================================================================
1    ethvl-to-ethvl  Fa0/0.123              Fa0/0.345                  UP     


R2#show connection id 1
Connection: 1 - ethvl-to-ethvl
 Current State: UP
 Segment 1: FastEthernet0/0.123 up
 Segment 2: FastEthernet0/0.345 up

CDP is not disabled:
R2#show cdp neighbors
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
R3               Fas 0/0           171            R       7206VXR   Fas 0/0
R1               Fas 0/0           130            R       7206VXR   Fas 0/0
R2#