From cengiz at ISI.EDU  Fri Dec  1 22:31:27 1995
From: cengiz at ISI.EDU (Cengiz Alaettinoglu)
Date: Fri, 1 Dec 1995 13:31:27 -0800
Subject: alpha prpath and pmatch is available
Message-ID: <199512012131.AA04012@cat.isi.edu>


Hi,

Last minute before the ietf alpha release of new pmatch and prpath are
available at:
	http://www.isi.edu/div7/people/cengiz/software

What is new (over older RIPE version):
	- c++/c/bison/flex implementation
	- understands as-in/out interas-in/out interaction
	- understands extended attributes
	- understand as path regular expressions
	- does not ignore as-out lines (and finds much fewer paths as
	  a result). In particular does not find any path that goes
	  over ANS since they have no as-out lines. I will make an
	  option to change missing policy default to ANY from NOT
	  ANY. 
	
What does it not do (yet) that old version does:
	- typing an as number, a 32bit ip address or a dns name at the
	  prompt (well you can type, it will just crash:-). You can
	  only type routes. I will make an alpha release to rps, once
	  this is implemented.

What is next:
	- fuzzy matches (setting certain route attributes to dontcare)
	- listing each action taken as the route propagates over the
	  internet 

To install (after untarring), in the RtConfig directory do:
	./configure
and at RtConfig/Engines/pmatch, Engines/prpath, (also optionally at 
Engines/peval which is broken) do: 
	make

You need to use radb2.ra.net or radb.ra.net and port 5043 since new
prpath/pmatch/peval require radbserver 2.0.0 or higher. You can do so
by setting the environment variables:
	IRR_HOST=radb2.ra.net
	IRR_PORT=5043
	IRR_SOURCES=isitest,mci,ripe,canet,ans,radb
or by specifying -h, -p and -s options.

An old copy of AS690 autnum object without line continuations is in
isitest database at radb2. Here are some examples of pmatch
./pmatch -as AS690 -s isitest,ans,mci,ripe,canet,radb
pmatch> 128.8.0.0/16
Route:
   NLRI: 128.8.0.0/16
   Origins: AS2548 
   Communities: COMM_ANS_CORE 
as-in: AS1327 (pref=2) 
as-in: AS2548 (pref=1) 
   interas-in: AS2548 192.41.177.140/32 0.0.0.0/32 (pref=1) 
as-in: AS3561 (pref=3) 

Getting the first prompt is slow (few minutes) due to servers being
slow on the mega autnum object. But getting the result for each query
is quite fast (few seconds, again dominated by server query to
find the origin and communities).

Here are some examples of prpath
prpath -as AS5005
prpath> 128.9.0.0/16
Route:
   NLRI: 128.9.0.0/16
   Origins: AS5000 AS228 AS227 
   Communities: COMA COMB 
AS5000 AS5001 AS5003 AS5005
AS5000 AS5002 AS5003 AS5004 AS5005
AS5000 AS5002 AS5003 AS5005
prpath> 

Let me know how it goes. I would love to have feedback. Thanks.

Cengiz

-- 
Cengiz Alaettinoglu       Information Sciences Institute
(310) 822-1511            University of Southern California
http://www.isi.edu/div7/people/cengiz



-------- Logged at  Wed Jan 3 20:05:29 MET 1996  ---------