Cisco Systems 3130 User Manual
38-65
Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter 38 Configuring IP Unicast Routing
Configuring Multi-VRF CE
You can also enable the logging of messages generated when a BGP neighbor resets, comes up, or goes
down by using the bgp log-neighbor changes router configuration command.
down by using the bgp log-neighbor changes router configuration command.
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, called a VPN routing/forwarding (VRF) table.
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, called 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 or advanced IP services feature set.
Multi-VRF CE allows a service provider to support two or more VPNs with overlapping IP addresses.
devices (multi-VRF CE) when the switch is running the IP services or advanced IP services feature set.
Multi-VRF CE allows a service provider 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.
MPLS VRF, see the Cisco IOS Switching Services Configuration Guide, Release 12.2.
show ip bgp prefix
Display peer groups and peers not in peer groups to which the
prefix has been advertised. Also display prefix attributes such as
the next hop and the local prefix.
prefix has been advertised. Also display prefix attributes such as
the next hop and the local prefix.
show ip bgp cidr-only
Display all BGP routes that contain subnet and supernet network
masks.
masks.
show ip bgp community [community-number] [exact]
Display routes that belong to the specified communities.
show ip bgp community-list community-list-number
[exact-match]
[exact-match]
Display routes that are permitted by the community list.
show ip bgp filter-list access-list-number
Display routes that are matched by the specified AS path access
list.
list.
show ip bgp inconsistent-as
Display the routes with inconsistent originating autonomous
systems.
systems.
show ip bgp regexp regular-expression
Display the routes that have an AS path that matches the specified
regular expression entered on the command line.
regular expression entered on the command line.
show ip bgp
Display the contents of the BGP routing table.
show ip bgp neighbors [address]
Display detailed information on the BGP and TCP connections to
individual neighbors.
individual neighbors.
show ip bgp neighbors [address] [advertised-routes |
dampened-routes | flap-statistics | paths
regular-expression | received-routes | routes]
dampened-routes | flap-statistics | paths
regular-expression | received-routes | routes]
Display routes learned from a particular BGP neighbor.
show ip bgp paths
Display all BGP paths in the database.
show ip bgp peer-group [tag] [summary]
Display information about BGP peer groups.
show ip bgp summary
Display the status of all BGP connections.
Table 38-11
IP BGP Clear and Show Commands (continued)
Command
Purpose