Virtual Router General Properties Overview - Juniper NETWORK AND SECURITY MANAGER 2010.4 - CONFIGURING SCREENOS DEVICES GUIDE REV 01 Manual

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Virtual Router General Properties Overview

Copyright © 2010, Juniper Networks, Inc.
Select customer-vr1 from the Management Vrouter drop-down list.
5.
Create a customer zone, customer-zone1, or edit any existing one by clicking Network
6.
> Zone.
Select Virtual Router for customer-zone1.
7.
Edit the management interface by clicking Network > Interface.
8.
Select Zone for customer-zone1.
9.
Click OK to save the changes.
10.
Route Types Overview on page 295
Virtual Router General Properties Overview on page 297
Route Maps Overview on page 300
The general properties for a virtual router that can be configured are displayed in Table
73 on page 297:
Table 73: Virtual Router General Properties
Property Description
Virtual Router ID A unique identifier used to communicate with other routing devices. The
identifier can be in the form of a dotted decimal notation, like an IP
address, or an integer value. If you do not configure a specific virtual router
ID before enabling a dynamic routing protocol, the device automatically
selects the highest IP address of the active interfaces in the VR for the
router identifier.
Maximum Number of The maximum number of routing table entries that can be allocated for
Routes a specific virtual router. The maximum number of route entries available
depends upon the security device and the number of virtual routers
configured on the device. Setting the maximum number of route entries
in a VR helps prevent one virtual router from using up all the entries in the
system.
Maximum Equal Cost The maximum equal cost multi-path (ECMP) routes used by the virtual
Routes Supported router. You might want to use ECMP when load balancing to enable the
(ScreenOS 5.1 and route lookup to select a different route each time the route is invoked.
later only) This setting controls how many ECMP routes the route lookup can use;
you can configure one to four ECMP routes for each virtual router. For
example, when this setting is three and the number of available ECMP
routes is five, the route lookup uses only the first three ECMP entries in
the routing table (in roundsrobin fashion) for the virtual router.
Route Lookup Configure the order in which route lookup occurs. By default, route lookup
Preference uses the following sequence: SIBR routes (preferred value 3),
(ScreenOS 5.1 and source-based routes (preferred value 2), destination-based routes
later only) (preferred value 1). To change this sequence, configure the values for
each preference from 1 to 255; the higher the value, the more preferred
the route.
Chapter 10: Routing
297