Overview: Vrf-Lite; Figure 1: Vrf-Lite Overview - Avaya 8800 Technical Configuration Manual

1. Overview: VRF-Lite

Global Routing Table
/ VRF 0
Second Routing Instance
/ VRF 1
Third Routing Instance
/ VRF 2
VRF-light provides multiple independent IPv4 routing and forwarding instances within the Ethernet
Routing Switch 8600/8800. In addition to the global routing table (VRF0), up to 255 virtual route
forwarding (VRF) instances are supported.
Each VRF-Lite instance supports the following features:

256 VPNs for each system

VRF routing protocols (OSPF, RIP, or BGP)

IPv4 only

Filtering support

VRRP, ARP, and DHCP Relay

Overlapping address space

Inter-VRF forwarding policies

SMLT and RSMLT support for VRFs

IEEE 802.3ad and MLT support

SMLT and RSMLT for CE connectivity

ECMP

VRF-based ping and traceroute

Interoperability with RFC2547/4364 layer 3 VPNs

256K total routes per switch; 256K routes in one VRF or spread among all VRF‟s

32K ARP table size shared between global route table and VRF
VRF-Lite for Ethernet Routing Switch 8600 Technical Configuration Guide
April 2011
RIP0
VRF
OSPF0
IP04
IPv6
R
VRF
RIP1
OSPF1
IP04
...

Figure 1: VRF-Lite Overview

IP01
VLAN01
IP02
VLAN02
0
VLAN03
IP03
IP11
VLAN11
IP12
VLAN12
1
IP13
VLAN13
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