Base Scenario; Assumptions; Vrf-Lite Configuration - Avaya 8800 Technical Configuration Manual

2. Base Scenario:

This technical brief covers configuration examples only pertaining to VRF-light for the ERS 8600/8800.

2.1 Assumptions:

It is assumed that general knowledge of routing and SMLT on Avaya switches is understood.

2.2 VRF-Lite Configuration

In the 5.0 software release or latter, the concept of global routing table and virtual routing table(s) is
introduced. The global route table (GRT) is also referred to as VRF0 and refers to the main global routing
table. For each virtual routing instance, it will be referred to by the instance number you assign to the
VRF; for example VRF1 refers to virtual router instance 1. Overall, there is only one global routing table
(VRF0) and up to 255 virtual routing tables (VRF1 up to VRF255). The VRF instance can be created
using either CLI, SNMP (5.x), or EDM (≥7.0).
For each VRF-Lite instance that you create, you will need to specify the routing protocol or protocols that
you wish to enable for this VRF instance. This can include OSPF, RIP, and/or BGP. As an option, you
can also limit the number of routes allowed per VRF instance.
The order of VRF-Lite configuration is as follows:
1. Create VRF instance(s)
2. Enable IGP routing protocol you wish to enable per VRF, i.e. enable OSPF, RIP, and/or BGP per
VRF instance
3. As an option, configure the number of routes allowed for each VRF
4. Create the VRF VLAN(s) and add port members
5. If using JDM
a. At this stage, only if using Java Device Manager (JDM) for software release 5.x, you must
select the VRF instance to further configure the VRF if you are a JDM Super User.
b. If you are a JDM VRF user, you must logon to the switch with the appropriate credentials
(community string if SNMPv1/2 or USM user if SNMPv3).
c. Please see section titled JDM : VRF-Lite SNMP Access for ERS 8600 software release
5.x below for more details.
6. If using EDM,
a. If using software release 7.0, you can select the VRF context at the EDM login screen
b. If using software level 7.1 or higher, after loggin in via the global user credentials, you
can select the VRF context available via the left navigation plane VRF Context view
c. Please see section titled EDM: VRF-Lite http Access for ERS 8800 software release 7.x
for more details
7. Add IP address and routing protocol(s) at a VLAN level for each VRF instance.
8. Add optional route policies if required. You can also use route policies if you wish to leak routes
between VRF instances or to the global route table.
VRF-Lite for Ethernet Routing Switch 8600 Technical Configuration Guide
April 2011
avaya.com
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