virtual router can have a single routing table i.e VRF virtual route forwarding.but a logical router will act as a router will carry many virtual routers and many routing tables..I think netscreens are firewalls.PIC is a physical interface card .
The essence is the logical router will behave like a router not a subset of the router.

On Fri, May 8, 2009 at 8:46 PM, Bernard Owuor <b_owuor@yahoo.com> wrote:
Did you mean virtual routers? I've never heard of logical routers although I've configured juniper netscreens numerous times.
Virtual routers are in-built into Juniper Netscreen's router software architecture and are extremely easy to configure. I don't think extra software or hardware is needed.
What do you mean by 'PIC'?

From: ibtisam jamal <ibty.jamal@gmail.com>
To: Skunkworks forum <skunkworks@lists.my.co.ke>
Sent: Friday, May 8, 2009 10:12:46 AM
Subject: [Skunkworks] juniper logical routers



Hi all,
Has anyone configured logical routers on a physical router specifically for juniper.
i have read that the requirements for a separate routing engine and separate interfaces on PIC.
I need advice from someone whose done this ...need to know the pros n cons.
regards,




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