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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 35 Configuring IP Unicast Routing
Configuring Multi-VRF CE
Use the no router bgp autonomous-system-number global configuration command to delete the BGP
routing process. Use the command with keywords to delete routing characteristics.
Multi-VRF CE Configuration Example
Figure 35-9 is a simplified example of the physical connections in a network similar to that in
Figure 35-8. OSPF is the protocol used in VPN1, VPN2, and the global network. BGP is used in the CE
to PE connections. The examples following the illustration show how to configure a Cisco ME 3400
switch as CE Switch
A, and the VRF configuration for customer switches D and F. Commands for
configuring CE Switch C and the other customer switches are not included but would be similar. The
example also includes commands for configuring traffic to Switch A for a Catalyst 6000 or Catalyst 6500
switch acting as a PE router.
Figure 35-9 Multi-VRF CE Configuration Example
Configuring Switch A
On Switch A, enable routing and configure VRF.
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# ip routing
Switch(config)# ip vrf v11
Switch(config-vrf)# rd 800:1
Step 10
show ip bgp [ipv4] [neighbors] Verify BGP configuration.
Step 11
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Switch A
Switch D
VPN1
VPN2
CE1
Global network
208.0.0.0
Fast
Ethernet
8
Gigabit
Ethernet
1
101386
PE CE2
Switch E
108.0.0.0
Fast
Ethernet
7
Switch F
118.0.0.0
Fast
Ethernet
11
Switch G
168.0.0.0
Fast
Ethernet
3
VPN1
VPN2
Global network
Switch H
Switch J
Switch K
CE = Customer-edge device
PE = Provider-edge device
Switch B Switch C
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