Mpls Vpn Guidelines And Restrictions; Mpls Vpn Supported Commands; Configuring Mpls Vpn - Cisco WS-SUP32-GE-3B - Supervisor Engine 32 Software Configuration Manual

Chapter 21 Configuring Multiprotocol Label Switching
If aggregate labels are used for disposition in an egress PE, many prefixes on the multiple interfaces may
be associated with the label. In this case, the PFC3B must perform an IP lookup to determine the final
destination. The IP lookup may require recirculation.

MPLS VPN Guidelines and Restrictions

When configuring MPLS VPN, follow these guidelines and restrictions:
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MPLS VPN Supported Commands

MPLS VPN supports these commands:
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For information about these commands, see these publications:
http://www.cisco.com/en/US/docs/ios/12_2/switch/command/reference/fswtch_r.html

Configuring MPLS VPN

For information on configuring MPLS VPN, refer to the "MPLS Virtual Private Networks" section at
this URL:
http://www.cisco.com/en/US/docs/ios/12_2/switch/configuration/guide/xcftagc_ps1835_TSD_Product
s_Configuration_Guide_Chapter.html
If you use a Layer 3 VLAN interface as the MPLS uplink through a Layer 2 port peering with another
Note
MPLS device, then you can use another Layer 3 VLAN interface as the VRF interface.
OL-11439-03
The PFC3B supports a total of 1024 VRFs per chassis a with enhanced OSMs; using a nonenhanced
OSM causes the system to default to 511 VRFs.
VPNs are recirculated when the number of VPNs is over 511.
address-family
exit-address-family
import map
ip route vrf
ip route forwarding
ip vrf
neighbor activate
rd
route-target
Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY
VPN Switching
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