Switch(config)# monitor session 2 destination interface gigabitethernet0/8 Switch(config)# end
This example shows how to clear any existing RSPAN configuration for session 1, configure RSPAN session 1 to monitor multiple source interfaces, and configure the destination RSPAN VLAN and the reflector-port:
Multi-VRF CE is a feature that allows a service provider to support two or more VPNs where IP addresses can be overlapped among the VPNs. Multi-VRF CE uses input interfaces to distinguish routes for different VPNs and forms virtual packet-forwarding tables by associating one or more Layer 3 interfaces with each VRF. Interfaces in a VRF can be either physical, such as Ethernet ports, or logical, such as VLAN SVIs, but an interface cannot belong to more than one VRF at any time.
Note: Multi-VRF CE interfaces must be Layer 3 interfaces
Multi-VRF CE includes these devices:
Customer edge (CE) devices - provide customers access to the service provider network over a data link to one or more provider edge routers. The CE device advertises the sites local routes to the router and learns the remote VPN routes from it. A Catalyst 3550 switch can be a CE.
Provider edge (PE) routers - exchange routing information with CE devices by using static routing or a routing protocol such as BGP, RIPv2, OSPF, or EIGRP. The PE is only required to maintain VPN routes for those VPNs to which it is directly attached, eliminating the need for the PE to maintain all of the service provider VPN routes. Each PE router maintains a VRF for each of its directly connected sites. Multiple interfaces on a PE router can be associated with a single VRF if all of these sites participate in the same VPN. Each VPN is mapped to a specified VRF. After learning local VPN routes from CEs, a PE router exchanges VPN routing information with other PE routers by using internal BGP (IBPG).
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