Cisco Catalyst 9500 Series User Manual

Multi-VRF CE Configuration Guidelines
To use multi-VRF CE, you must have the Network Advantage license enabled on your switch.Note
•
A switch with multi-VRF CE is shared by multiple customers, and each customer has its own routing
table.
•
Because customers use different VRF tables, the same IP addresses can be reused. Overlapped IP
addresses are allowed in different VPNs.
•
Multi-VRF CE lets multiple customers share the same physical link between the PE and the CE.
Trunk ports with multiple VLANs separate packets among customers. Each customer has its own
VLAN.
•
Multi-VRF CE does not support all MPLS-VRF functionality. It does not support label exchange,
LDP adjacency, or labeled packets.
•
For the PE router, there is no difference between using multi-VRF CE or using multiple CEs. In
Figure 41-6, multiple virtual Layer 3 interfaces are connected to the multi-VRF CE device.
•
The switch supports configuring VRF by using physical ports, VLAN SVIs, or a combination of
both. The SVIs can be connected through an access port or a trunk port.
•
A customer can use multiple VLANs as long as they do not overlap with those of other customers.
A customer’s VLANs are mapped to a specific routing table ID that is used to identify the appropriate
routing tables stored on the switch.
•
The switch supports one global network and up to 26 VRFs.
•
Most routing protocols (BGP, OSPF, RIP, and static routing) can be used between the CE and the
PE. However, we recommend using external BGP (EBGP) for these reasons:
◦
BGP does not require multiple algorithms to communicate with multiple CEs.
◦
BGP is designed for passing routing information between systems run by different
administrations.
◦
BGP makes it easy to pass attributes of the routes to the CE.
•
Multi-VRF CE does not affect the packet switching rate.
•
VPN multicast is not supported.
•
You can enable VRF on a private VLAN, and the reverse.
•
You cannot enable VRF when policy-based routing (PBR) is enabled on an interface, and the reverse.
•
You cannot enable VRF when Web Cache Communication Protocol (WCCP) is enabled on an
interface, and the reverse.
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
162
Configuring IP Unicast Routing
Multi-VRF CE Configuration Guidelines

Cisco Catalyst 9500 Series Specifications

General

Series	Catalyst 9500 Series
Category	Switch
Software	Cisco IOS XE
Operating Temperature	0°C to 45°C (32°F to 113°F)
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Fixed Uplink Modules	Varies by model
Stacking	Yes (StackWise Virtual)
Redundancy	Redundant power supplies and fans
Security	Advanced security features
PoE+	Available (varies by model)
Power Supply Options	AC and DC options (varies by model)
Relative Humidity	5% to 90% noncondensing
Dimensions (H x W x D)	Varies by model
Weight	Varies by model
Ports	Up to 48 ports (varies by model)