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Riverstone Networks RS Switch Router User Guide Release 8.0 5-23
Bridging Configuration Guide Tunneling VLAN packets across MANs
The following is the configuration for R1:
The following is the configuration for R2:
Tunnel entry or exit ports can be spread across routers. In Figure 5-6, customers C1 and C3 use the VLAN BLUE,
while customers C2 and C4 use the VLAN GREEN. The backbone VLAN for each customer must be different to
ensure that traffic for C1 is not sent to C3, traffic for C2 is not sent to C4, etc. Therefore, traffic for customer C1 and
C2 will be sent on the backbone VLAN RED, while traffic for customer C3 and C4 will be sent on the backbone VLAN
PURPLE.
! Create 2 backbone VLANs and 1 customer VLAN
vlan create RED port-based
vlan create GREEN port-based
vlan create BLUE port-based
! Add ports to BLUE VLAN
vlan add ports et.2.1, et.3.1 to BLUE
! Make et.4.1 both a trunk port and a tunnel backbone port
vlan make trunk-port et.4.1 stackable-vlan
! Add et.4.1 to both RED and GREEN backbone VLANs
vlan add ports et.4.1 to RED
vlan add ports et.4.1 to GREEN
! Map tunnel entry ports to backbone VLAN
vlan enable stackable-vlan on et.2.1 backbone-vlan RED
vlan enable stackable-vlan on et.3.1 backbone-vlan GREEN
! Create 2 backbone VLANs and 1 customer VLAN
vlan create RED port-based
vlan create GREEN port-based
vlan create BLUE port-based
! Add ports to BLUE VLAN
vlan add ports et.6.1, et.7.1 to BLUE
! Make et.5.1 both a trunk port and a tunnel backbone port
vlan make trunk-port et.5.1 stackable-vlan
! Add et.5.1 to both RED and GREEN backbone VLANs
vlan add ports et.5.1 to RED
vlan add ports et.5.1 to GREEN
! Map tunnel exit ports to backbone VLAN
vlan enable stackable-vlan on et.6.1 backbone-vlan RED
vlan enable stackable-vlan on et.7.1 backbone-vlan GREEN