Foundry Networks Switch and Router Installation And Configuration Manual page 938

Foundry Switch and Router Installation and Configuration Guide
EXAMPLE:
Figure 25.12 shows a more complex port-based VLAN configuration using multiple Layer 2 Switches and IEEE
802.1q VLAN tagging. The backbone link connecting the three Layer 2 Switches is tagged. One untagged port
within each port-based VLAN on FastIron-A connects each separate network wide Layer 2 broadcast domain to
the router for Layer 3 forwarding between broadcast domains. The STP priority is configured to force FastIron-A
to be the root bridge for VLANs RED and BLUE. The STP priority on FastIron-B is configured so that FastIron-B
is the root bridge for VLANs GREEN and BROWN.
NetIron Router
= STP Blocked VLAN
FastIron-B
ROOT BRIDGE
FOR
VLAN - BROWN
VLAN - GREEN
FastIron Workgroup
1 3 5 7 9 11 13 15
Link Link
Activity 2 4 6 8 10 12 14 16
Activity
Console FDX FDX
100 100
Link / Act Link / Act
Power FDX FDX
100 100
Link / Act Link / Act
VLAN 2 VLAN 3 VLAN 4
Port 1-4 Port 5-8 Port 9-12
IP Sub1 IP Sub2 IP Sub3
IPXnet1 IPXnet2 IPXnet3
AT 100 AT 200 AT 300
Zone A Zone B Zone C
Figure 25.12 More complex port-based VLAN
To configure the Port-based VLANs on the FastIron Layer 2 Switches in Figure 25.12, use the following method.
USING THE CLI
Configuring FastIron-A
Enter the following commands to configure FastIron-A:
FastIron> enable
FastIron# configure terminal
FastIron(config)# hostname FastIron-A
FastIron-A(config)# vlan 2 name BROWN
FastIron-A(config-vlan-2)# untag ethernet 1 to 4 ethernet 17
FastIron-A(config-vlan-2)# tag ethernet 25 to 26
FastIron-A(config-vlan-2)# spanning-tree
FastIron-A(config-vlan-2)# vlan 3 name GREEN
FastIron-A(config-vlan-3)# untag ethernet 5 to 8 ethernet 18
FastIron-A(config-vlan-3)# tag ethernet 25 to 26
FastIron-A(config-vlan-3)# spanning-tree
FastIron-A(config-vlan-3)# vlan 4 name BLUE
FastIron-A(config-vlan-4)# untag ethernet 9 to 12 ethernet 19
FastIron-A(config-vlan-4)# tag ethernet 25 to 26
25 - 18
NetIron Router
Console
Power
IP Subnet1 IP Subnet2
IPX Net 1 IPX Net 2
Atalk 100.1 Atalk 200.1
Zone "A" Zone "B"
Port 17 Port 18
FastIron Workgroup
Link Link
Activity
Activity
Console
Power
VLAN 2
Port 1-4
IP Sub1
IPXnet1
AT 100
Zone A
17 19 21 23
18 20 22 24
FDX
100
Link / Act
FDX
100
Link / Act
VLAN 5
Port 13-16
IP Sub4
IPXnet4
AT 400
Zone D
1 3 5 7 9 11 13 15
2 4 6 8 10 12 14 16
FDX FDX
Link/Act Link/Act
FDX FDX
Link/Act Link/Act
IP Subnet3 IP Subnet4
IPX Net 3 IPX Net 4
Atalk 300.1 Atalk 400.1
Zone "C" Zone "D"
Port 19 Port 20
1 3 5 7 9 11 13 15 17 19 21 23
2 4 6 8 10 12 14 16 18 20 22 24
FDX FDX FDX
100 100 100
Link / Act Link / Act Link / Act
FDX FDX FDX
100 100 100
Link / Act Link / Act Link / Act
VLAN 3 VLAN 4 VLAN 5
Port 5-8 Port 9-12 Port 13-16
IP Sub2 IP Sub3 IP Sub4
IPXnet2 IPXnet3 IPXnet4
AT 200 AT 300 AT 400
Zone B Zone C Zone D
FastIron-A
ROOT BRIDGE
FOR
VLAN - BLUE
VLAN - RED
FastIron-C
FastIron Workgroup
1 3 5 7 9 11 13 15 17
Link Link
Activity 2 4 6 8 10 12 14 16 18
Activity
Console FDX FDX FDX
100 100 100
Link / Act Link / Act Link / Act
Power FDX FDX FDX
100 100 100
Link / Act Link / Act Link / Act
VLAN 2 VLAN 3 VLAN 4 VLAN 5
Port 1-4 Port 5-8 Port 9-12 Port 13-16
IP Sub1 IP Sub2 IP Sub3 IP Sub4
IPXnet1 IPXnet2 IPXnet3 IPXnet4
AT 100 AT 200 AT 300 AT 400
Zone A Zone B Zone C Zone D
December 2000
19 21 23
20 22 24