Quick Reference Guide
278 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Routing between VLANs using virtual routing interfaces (Layer 3 Switches only)
10
PowerConnect-A(config-vlan-4)# router-interface ve5
PowerConnect-A(config-vlan-4)# int ve5
PowerConnect-A(config-vif-5)# ip address 1.1.3.1/24
PowerConnect-A(config-vif-5)# ip ospf area 0.0.0.0
PowerConnect-A(config-vif-5)# ipx network 3 ethernet_802.3
PowerConnect-A(config-vif-5)#
It is time to configure a separate port-based VLAN for each of the routed backbone ports (Ethernet
25 and 26).
If you do not create a separate tagged port-based VLAN for each point-to-point backbone link, you
need to include tagged interfaces for Ethernet 25 and 26 within VLANs 2, 3, and 8. This type of
configuration makes the entire backbone a single STP domain for each VLAN 2, 3, and 8. This is
the configuration used in the example in “Configuring IP subnet, IPX network andprotocol-based
VLANs” on page 272. In this scenario, the virtual routing interfaces within port-based VLANs 2, 3,
and 8 will be accessible using only one path through the network. The path that is blocked by STP is
not available to the routing protocols until it is in the STP FORWARDING state.
PowerConnect-A(config-vif-5)# vlan 5 name Rtr_BB_to_Bldg.2
PowerConnect-A(config-vlan-5)# tag e 25
PowerConnect-A(config-vlan-5)# no spanning-tree
PowerConnect-A(config-vlan-5)# router-interface ve6
PowerConnect-A(config-vlan-5)# vlan 6 name Rtr_BB_to_Bldg.3
PowerConnect-A(config-vlan-6)# tag ethernet 26
PowerConnect-A(config-vlan-6)# no spanning-tree
PowerConnect-A(config-vlan-6)# router-interface ve7
PowerConnect-A(config-vlan-6)# int ve6
PowerConnect-A(config-vif-6)# ip addr 1.1.4.1/24
PowerConnect-A(config-vif-6)# ip ospf area 0.0.0.0
PowerConnect-A(config-vif-6)# ipx network 4 ethernet_802.3
PowerConnect-A(config-vif-6)# int ve7
PowerConnect-A(config-vif-7)# ip addr 1.1.5.1/24
PowerConnect-A(config-vif-7)# ip ospf area 0.0.0.0
PowerConnect-A(config-vif-7)# ipx network 5 ethernet_802.3
PowerConnect-A(config-vif-7)#
This completes the configuration for device-A. The configuration for device-B and C is very similar
except for a few issues which are as follows:
• IP subnets and IPX networks configured on device-B and device-C must be unique across the
entire network, except for the backbone port-based VLANs 5, 6, and 7 where the subnet is the
same but the IP address must change.
• There is no need to change the default priority of STP within VLAN 4.
• There is no need to include a virtual router interface within VLAN 4.
• The backbone VLAN between device-B and device-C must be the same at both ends and
requires a new VLAN ID. The VLAN ID for this port-based VLAN is VLAN 7.
Configuration for device-B
Enter the following commands to configure device-B.
PowerConnect> en
No password has been assigned yet...
PowerConnect# config t
PowerConnect(config)# hostname PowerConnect-B
PowerConnect-B(config)# router ospf
PowerConnect-B(config-ospf-router)# area 0.0.0.0 normal
PowerConnect-B(config-ospf-router)# router ipx