Cisco Catalyst 5000 Series Installation And Configuration Note page 24

RSFC Configuration Examples
Figure 4
Gigabit EtherChannel
These configuration tasks must be performed to configure the network in this example:
1
2
3
4
5
6
After you successfully configure the network, all end stations should be able to communicate with
one another. Whenever a station in one VLAN transmits to a station in another VLAN, the traffic
travels to the Catalyst 5509 and is passed to the RSFC on the appropriate VLAN interface. The
RSFC checks the routing table, determines the correct outgoing VLAN interface, and sends the
traffic out that interface to the Catalyst 5509. The Catalyst 5509 forwards the traffic out the
appropriate switch port to the destination.
For example, if Host A transmits to the server, the Catalyst 5509 receives the traffic on port 6/1 and
passes it to the RSFC on the VLAN 150 interface. The RSFC performs a routing table lookup and
forwards the traffic out the VLAN 50 interface. The Catalyst 5509 forwards the traffic to the server
out port 2/1.
Similarly, if Host B transmits to the server, the Catalyst 5505 receives the traffic on port 3/1 and
passes it over the Gigabit EtherChannel ISL trunk link to the Catalyst 5509. The Catalyst 5509
passes the traffic to the RSFC over the VLAN 250 interface. The RSFC routes the traffic out the
VLAN 50 interface and the Catalyst 5509 forwards the traffic to the server.
24 Catalyst 5000 Series Route Switch Feature Card Installation and Configuration Note
InterVLAN Routing with RSFC Example Network Topology
RSFC
VLAN 50 172.16.50.1
VLAN 150 172.16.150.1
VLAN 250 172.16.250.1
ISL Trunk Link
Configure the Catalyst 5509 as a VTP server and assign a VTP domain name.
Configure the Catalyst 5505 as a VTP client in the same VTP domain.
Create the VLANs on the Catalyst 5509.
Configure the Gigabit EtherChannel ISL trunk link between the switches.
Assign the end station switch ports to the appropriate VLANs.
On the RSFC, create and assign IP addresses to the VLAN interfaces, one for each VLAN
configured on the switch.
Server
172.16.50.50
2/1
1/1
1/2
6/1
Catalyst
5509
Host A
172.16.150.150
Host B
172.16.250.250
1/2
3/1
1/1
Catalyst
5505
VLAN 50
Subnet 172.16.50.0/24
VLAN 150
Subnet 172.16.150.0/24
VLAN 250
Subnet 172.16.250.0/24