Multi-vrf overview – Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide User Manual
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FSX interface modules supporting Multi-VRF (Continued)
TABLE 132
FSX Interface Modules
Multi-VRF Support
SX-FI-24HF
Yes
SX-FI-2XG
Yes
SX-FI-8XG
Yes
SX-FI-48GPP
Yes
Routing Protocols and VRF Support
TABLE 133
VRF
Graceful Restart Helper Mode
Graceful Restart
Non-Stop Routing
RIP
Yes
No
No
No
RIPng
No
No
No
No
OSPFv2
Yes
Yes
Yes
Yes
OSPFv3
Yes
Yes
No
Yes
BGP4
Yes
Yes
Yes
No
BGP4+
No
Yes
Yes
No
Multi-VRF Overview
Virtual routing and forwarding (VRF) allows routers to maintain multiple routing tables and forwarding
tables on the same router. A Multi-VRF router can run multiple instances of routing protocols with a
neighboring router with overlapping address spaces configured on different VRF instances.
In Multi-VRF deployments:
• Two VRF-capable routers must be directly connected at Layer 3, deploying BGP, OSPF, RIP, or
Static routes.
• Each VRF maintains unique routing and forwarding tables.
• Each VRF can be assigned one or more Layer 3 interfaces on a router to be part of the VRF.
• Each VRF can be configured with IPv4 address family, IPv6 address family, or both.
• A packet’s VRF instance is determined based on the VRF index of the interface on which the packet
is received.
• Separate routing protocols instances are required for each VRF instance.
• Overlapping address spaces can be configured on different VRF instances.
Multi-VRF deployments provide the flexibility to maintain multiple virtual routers which are segregated
for each VRF instance.
Multi-VRF Overview
FastIron Ethernet Switch Layer 3 Routing Configuration Guide
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