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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Chapter 31 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 31-7 is a simplified example of the physical connections in a network similar to that in
Figure 31-6. OSPF is the protocol used in VPN1, VPN2, and the global network. BGP is used in the CE
to PE connections. The example commands show how to configure the CE Switch S8 and include the
VRF configuration for Switches S20 and S11 and the PE router commands related to traffic with Switch
S8. Commands for configuring the other switches are not included but would be similar.
Figure 31-7 Multi-VRF CE Configuration Example
Step 9
end Return to privileged EXEC mode.
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
Catalyst 3550
switch S8
Switch S20
VPN1
VPN2
CE
Global network
208.0.0.0
Fast
Ethernet
0/8
Fast
Ethernet
0/5
74776
Si
Catalyst 6000
switch S3
PE
Catalyst 3550
switch S9
CE
Si
Switch S10
108.0.0.0
Fast
Ethernet
0/7
Switch S11
118.0.0.0
Fast
Ethernet
0/11
Switch S16
168.0.0.0
Fast
Ethernet
0/3
VPN1
VPN2
Global network
Switch S13
Switch S14
Switch S15
CE = Customer edge device
PE = Provider edge router
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