Dell POWEREDGE M1000E - Manual (Page 968)

38-76
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
OL-13270-03
Chapter 38 Configuring IP Unicast Routing
Configuring Multi-VRF CE
Configuring Multi-VRF CE
Virtual Private Networks (VPNs) provide a secure way for customers to share bandwidth over an
ISP-backbone network. A VPN is a collection of sites sharing a common routing table. A customer site
is connected to the service-provider network by one or more interfaces, and the service provider
associates each interface with a VPN routing table known as a VPN routing/forwarding (VRF) table.
The switch supports multiple VPN routing/forwarding (multi-VRF) instances in customer-edge (CE)
devices (multi-VRF CE) when the switch is running the IP services feature set. A service provider uses
multi-VRF CE allows to support two or more VPNs with overlapping IP addresses.
Note The switch does not use Multiprotocol Label Switching (MPLS) to support VPNs. For information about
MPLS VRF, see the Cisco IOS Switching Services Configuration Guide, Release 12.2.
These sections contain this information:
• Understanding Multi-VRF CE, page 38-77
• Default Multi-VRF CE Configuration, page 38-79
• Multi-VRF CE Configuration Guidelines, page 38-79
• Configuring VRFs, page 38-80
• Configuring VRF-Aware Services, page 38-81
• Configuring Multicast VRFs, page 38-84
• Configuring a VPN Routing Session, page 38-85
• Configuring BGP PE to CE Routing Sessions, page 38-86
• Multi-VRF CE Configuration Example, page 38-86
• Displaying Multi-VRF CE Status, page 38-90
show isis database Display the IS-IS link-state database.
show isis routes Display the IS-IS Level 1 routing table.
show isis spf-log Display a history of the shortest path first (SPF) calculations for IS-IS.
show isis topology Display a list of all connected routers in all areas.
show route-map Display all route maps configured or only the one specified.
trace clns destination Discover the paths taken to a specified destination by packets in the network.
which-route {nsap-address | clns-name} Display the routing table in which the specified CLNS destination is found.
Table 38-13 ISO CLNS and IS-IS Clear and Show Commands
Command Purpose