...vBNS

vBNS = very High Speed Backbone Network Service, see http://www.vbns.net

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...Jacobson

The source code for tcpdump is available at http://www-nrg.ee.lbl.gov/

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...``libpcap''

The libpcap library is available from ftp://ftp.ee.lbl.gov/libpcap-*.tar.gz.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...interrupt

On UNIX systems, usually a hardware interrupt is generated for each received packet

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...Stuttgart

Please contact the author for details about that installation

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...announced

See http://www.mindspring.com/~jlindsay/webbased.html for an extensive list of web based management applications

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...Technologies

A demo version of IntraSpection is on the WWW at http://www.intraspection.com

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...(WBEM)

A web page is provided by the WBEM initiative at http://wbem.freerange.com

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...systems

An autonomous system (AS) is an organizational entity of networks/machines

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...parameter

Claffy, Braun and Polyzos used unidirectional flows for their analysis in [15]

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...operation

Note that this only accelerates switching when access filtering and accounting are enabled on the switch

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...Charter''

The RTFM charter provides a WWW homepage with further information on the current research state at http://www.ietf.org/html.charters/rtfm-charter.html

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...centers

vBNS/NLANR provide the measurement data as well as information on the state of the CORAL project to the public at http://www.nlanr.net/NA/Oc3mon/

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...FTP

The source code is available at ftp://nlanr.net/Software/Oc3mon

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...environment

Jon Dugan, jdugan@ncsa.uiuc.edu is currently working on an OC3MON port to FreeBSD. He maintains a web page at http://rivendell.ncsa.uiuc.edu/oc3mon

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...AAL5

Note that Cisco routers and Fore switches also support AAL3/4, but this is not used very often because it consumes an additional 4 bytes from each cell (above the 5 already used for the ATM header) to support submultiplexed channels within a given VP/VC. Therefore it was not implemented in OC3MON
Since the LLC/SNAP 8-byte per-frame header that the routers insert already includes a 2-byte ethertype field that allows, if needed, multiplexing of different protocols (IP, IBM SNA, Novell IPX, etc) on the same VC, including AAL3/4 support in the design would not have been beneficial. Note also that the addition of any bytes to a simple (no data attached) TCP ACK causes the 8-byte ATM AAL5 trailer to require another cell, doubling the bandwidth used by such packets.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...frame

cf. [9], p. 138

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...frame

Note that when multiple cells of the same packet are copied to the host, the card will not place them near each other so the host must do further reassembly using the ATM headers.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...headers

Note that encapsulated IP traffic cannot be analyzed since the encapsulated headers do not fit into the first cell

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...modes

Apparently, a third mode has been added in July 1997 to capture all of all cells. The author had no possibility to test this yet.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...module

Nevil Brownlee describes statistics modules at http://www.nlanr.net/NA/Oc3mon/oc3-api.html

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...page

This can be acomplished by using the REFRESH tag in newer versions of Netscape. Note that not all web browsers are guaranteed to support this feature.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...Leinen

The Perl5 SNMP library is available at http://www.switch.ch/misc/leinen/snmp/perl/

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...(JMAPI)

Sun provides information on the current state of the JMAPI project at http://www.javasoft.com/products/JavaManagement/NTR.html

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...Package''

Documentation for the Advent products and the class libraries are available on the WWW at http://www.adventnet.com

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...manual

The manual is part of the NeTraMet distribution

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...IP

Note that currently the applet does not support any other network protocols than TCP/IP

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.