© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v3.04-1 Implementing Inter-VLAN Routing Enabling Routing Between VLANs on a Multilayer Switch.

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© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v Implementing Inter-VLAN Routing Enabling Routing Between VLANs on a Multilayer Switch

© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v Layer 3 SVI

© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v SVI on a Multilayer Switch Configure ip routing interface vlan 10 – ip address router eigrp 50 – network Verify show ip route

© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v Configuring Inter-VLAN Routing Through an SVI Switch(config)#ip routing Step 1 : Configure IP routing. Switch(config)#router ip_routing_protocol Step 4 : Configure the IP routing protocol if needed. Switch(config)#interface vlan vlan-id Step 2 : Create an SVI interface. Switch(config-if)#ip address ip-address mask Step 3 : Assign an IP address to the SVI.

© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v Routed Ports on a Multilayer Switch (Cont.)

© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v Routed Ports on a Multilayer Switch Physical switch port with Layer 3 capability Not associated with a VLAN Requires removal of Layer 2 port functionality Configure ip routing interface fa0/1 – no switchport – ip address router eigrp 50 – network

© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v Configuring a Routed Port Switch(config)#ip routing Step 1 : Configure IP routing. Switch(config)#router ip_routing_protocol Step 4 : Configure the IP routing protocol if needed. Switch(config-if)#no switchport Step 2 : Create a routed port. Switch(config-if)#ip address ip-address mask Step 3 : Assign an IP address to the routed port.

© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v Summary SVI is a VLAN of switch ports represented by one interface to the routing system. Specific commands are used to configure and verify routing on multilayer switch interfaces. The interface vlan command creates the SVI. A routed port has Layer 3 attributes. A routed port requires the removal of Layer 2 port functionality with the no switchport command. To receive dynamic updates, a routing protocol is required.

© 2006 Cisco Systems, Inc. All rights reserved. BCMSN v3.04-9