This semi-annual event, open to the
Isocore Internetworking Lab members, was a follow-up to the
Isocore-sponsored iPOP 2005 conference held in Japan earlier this year
where the first live demonstration of trans-pacific dynamic GMPLS
Label Switched Paths (LSPs ) was held. In this way, testing resource expenditures are minimized
while testing productivity is maximized. Finally, test results
are output as text log and CSV files, which provide the most
comprehensive test information, and which can be leveraged for
customized database analysis and integration.com ), which develops firewall technology and products
that enable SIP-based live communication for the enterprise while
maintaining control and security at the network edge, and snom, an open
systems provider of high quality VoIP business telephones, today announced
the world's first successful completion of an encrypted VoIP call using the
approved standard protocol SRTP (Secure Realtime Transfer Protocol ). Ingate products currently protect
the networks of retail companies, financial institutions, industrial firms,
government agencies and small-to-large enterprises throughout Europe, Asia
and North America . technology
center in Frisco, Texas.

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----Isocore, the
technology validation leader in next generation IP and optical
networking, today announced the successful completion of its Spring
Leading Edge Code testing event at which leading vendors from the MPLS
and GMPLS industry participated. Masatoshi Suzuki, Executive Director, of KDDI R+D Laboratories,
Inc. When
combined, these protocols shield users from eavesdroppers, hackers and
spoofers. Founded in 1996 and based in
Berlin, the company was amongst the first to adopt the session initiation
protocol (SIP), which today is recognized as "the" future telecommunication
standard.

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Since even the most complex
tests can be executed unattended , including regression testing which
is especially resource intensive, IxScriptMate can be used to greatly
extend test lab capabilities.

PRESS RELEASE snom and Ingate Secure VoIP Traffic

com

"Achieving SRTP interoperability between snom and Ingate Systems marks an
important watershed in the evolution of VoIP security," said Michael
Knieling, VP Marketing for snom technology, AG.

Its wholly-owned subsidiary, Ingate
Systems Inc.ingate.

masinter hinden

Leading Vendors Successfully Complete Interoperability of Advanced IP MPLS Generalized MPLS and Optical Control Plane Features at Isocore Internetworking Lab

KDDI R+D Laboratories,
Inc. and NTT supported the effort by on-site participation. For more information about Isocore, visit
http://www.

About Ingate Systems

Ingate Systems develops firewall technology and products that enable
SIP-based live communication for the enterprise while maintaining control
and security at the network edge.

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Spirent and Ixia's VoIP test tools were deployed
to verify the successful voice service over H-VPLS network. On-the-fly traffic graphs display real-time test
progress. Unique
color-coded pass/fail indicators provide for quick, high-level
assessment of test outcomes, assisting complex post-processing
analysis.
For more information, contact Ixia at 26601 W.

snom and Ingate have both incorporated SRTP support to their VoIP products.

For more information, visit Ingate Systems at booth #1338 and Snom at booth
#1534 at Spring VON 2006 in San Jose. Our customers are companies who use interoperable technologies
for their enterprise communications. Ingate has a long history of developing
next-generation firewall technology that solves the NAT/firewall traversal
issue inherent in SIP communications.

koi8 hpr

Business Editors/High -Tech Editors

CALABASAS, Calif.
IxScriptMate 5. Ixia's vision is to be the
world's preeminent provider of solutions to enable testing of these
"utility-grade" IP networks.
SRTP was first developed by the Internet Engineering Task Force (IETF) in
2004 as RFC 3711. Together with our partners, snom
offers solutions that reduce the total cost of ownership, maximize the
overall return on investment into telephony infrastructure, and make our
customers independent from a single vendor.

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M-VPN testing also required that all
core routers in the setup support protocol- independent multicast in
sparse mode (a standard in the IETF). Key to this release are sophisticated
yet easy-to-use features that automate the test environment, making it
possible for users to seamlessly manage the development and
maintenance of large test environments and to rapidly analyze test
results.

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Via an intuitive graphical interface,
IxScriptMate streamlines essential steps in the test process --
configuration , execution, and analysis.00 features include:

IP multicast test support for MLDv1/v2 (for IPv6 networks) and
IGMPv3

Layer 3 VPN performance test across RFC 2547bis networks, with
scaleable topology definition

Centralized test management to store and manage test
configuration and results

IxScriptMate test suites address all aspects of the product
lifecycle, from development and quality assurance, to manufacturing
and deployment.com.

luciani 2400

The devices
that contributed to the GMPLS setup included Cisco Systems CRS-1
platform, Juniper Networks M series routers, Navtel Communication, and
the Sycamore Networks SN 16000 Intelligent Optical Switch .com

Ixia Streamlines Network Testing with Significant Enhancements to its Primary Automated Testing Application

00

Ixia (Nasdaq:XXIA), a leading, global provider of IP network
testing solutions, announced today that IxScriptMate, its primary
automated network test application, has been significantly enhanced to
improve efficiency in the automated testing of routers, Layer 2/3
switches, and other IP devices. IxScriptMate's integrated reporting and graphing capability
is the first application of its type to generate formatted Adobe
Acrobat PDF reports, making it easy to interpret even the most
complicated test results rapidly and accurately.ixiacom.com
Ixia(R ), the Ixia four petal logo(R), IxExplorer(R), and
Optixia(R) are registered trademarks of Ixia; IxLoad , IxScriptMate,
IxVoice, IxVPN, IxAccess, IxAnalyze, IxANVL, IxAuthenticate, and
IxChariot, are trademarks of Ixia.

ingate.

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IxScriptMate 5.
To learn more about IxScriptMate, visit our website at:
http://www.

Ideal for voice traffic, SRTP provides a very high level of security for
realtime data with advanced encryption, confidentiality, message
authentication, and replay protection."

"With the conclusion of this successful interoperability test, both snom
and Ingate set a benchmark for other vendors to implement similar features
and push security in VoIP environments to the next level," said Olle
Westerberg, Chief Executive Officer, Ingate Systems. In addition to an extensive line of
Ingate Firewalls, the company also produces the award-winning Ingate
SIParator, a device that connects to an existing network firewall to
seamlessly enable SIP communications.

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The MPLS QoS was also verified in the Hierarchical VPLS
environment.isocore .ingate. The SRTP key exchange mechanism used by both vendors is
based on the SDP Security Descriptions draft for media streams
(sdescriptions)."

A Secure VoIP Environment

Using snom phones with Ingate Firewalls provides users with a secure,
reliable VoIP environment.

hinden rober

In addition to the IP/MPLS service with leading edge code feature,
Isocore continues to examine these services on top of the dynamic
GMPLS network as part of its IP-Optical Integration program. Following the test , multiple levels of test analyses can be
executed depending upon the level of detail required. Ixia 's analysis solutions utilize a wide
range of industry-standard interfaces and are distinguished by their
performance, accuracy, reliability, and adaptability to the industry's
constant evolution .

To date, only snom and Ingate offer compatible SRTP implementations. Ingate Systems AB is headquartered in Sweden with
offices in Stockholm and Linkping., is located in Hollis, New Hampshire, with a U .

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Redback Networks SE800, Cisco
GSR, Juniper Networks M20 and Ixia participated as Provider edge nodes
supporting multicast capable sites. KDDI and
NTT also participated in this effort with their protocol emulation
further ensuring the success of the test event. "We look forward to
continued interoperability testing to widen the group of vendors that
comply with the open standard, to provide customers with a secure VoIP
solution.

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Both companies base their products on the SIP standard,
also developed by the IETF.

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During
this effort, for the first time, a common addressing was used for
optical and GMPLS capable edge routers. The result is more robust,
provably-secure solutions, and a wider field of options for end users.

About snom technology AG

snom is recognized for its high quality Voice over IP (VoIP) business
telephones.

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"
The IP/MPLS service testing effort included verification of the
Multicast layer 3 VPN (M-VPN). Its highly scalable solutions generate, capture ,
characterize, and emulate network and application traffic,
establishing definitive performance and conformance metrics of network
devices or systems under test. By working to strict IETF specifications , snom
and Ingate remain committed to open standards and true interoperability.

In addition , SRTP uses 128-bit AES for encrypting the RTP payload. It creates a unique key stream for each RTP packet, and
transmits encrypted audio packets over data networks, making it almost
impossible for eavesdroppers to retrieve the original media stream from the
encrypted stream.

mahdavi zawinski

Alcatel
7750 SR-7, MRV, Cisco 7600, Tellabs 8820 and Ixia participated in this
effort.00 has been designed with robust functionality and
remarkable flexibility for generating and analyzing results during and
after the test.

Other new IxScriptMate 5.

http://www.

nameserver koi8

Results from the Spring Leading
Edge Code testing and the forthcoming Fall leading edge code testing
(scheduled for August/September) will be showcased live following the
MPLS 2005 International Conference to be held October 16-19 in
Washington DC.00 offers an extensive suite of pre-built,
automated tests based on industry-standard RFCs and Layer 2/3
technologies optimized to execute test cases on Ixia's wide range of
purpose-built test platforms. Ixia's patented Real World Traffic(TM) Suite
addresses the growing need to test applications and networks prior to
deployment under realistic load conditions.

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"This is an important and necessary step in implementing and
providing flexible and reliable optical networks based on GMPLS.S.

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MPLS differentiated services using
three classes of services were used in the layer 2/Layer 3 Unicast
VPNs. All of the tests were performed over a core made up of Avici
TSR/SSR, Chiaro's Enstara, Cisco XR 12000, and Juniper M Series
routers enabled for MPLS QoS and other resiliency mechanisms.

About Isocore:

The goal of Isocore 's Internetworking Lab is to advance
internetworking through technology validation and product verification
and to promote development and rapid deployment of innovative
networking technologies.----

Multicast, MPLS VPN, and QoS Test Libraries
Extended and Enhanced in IxScriptMate 5. Agoura Road,
Calabasas, CA 91302; (818) 871-1800, Fax: (818) 871-1805; Email:
http://www. Used with voice data, SRTP provides
one of the most secure environments for Internet telephony and VoIP
applications available.

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Business Editors/High-Tech Editors

RESTON , Va. "These activities
by Isocore drive the IETF standardization on GMPLS protocols in a
profound way, and Isocore's plans to test in the areas of MPLS/GMPLS
migration and interworking as well as multi-region/multi-layer
networking, will lead us to provide large-capacity network services in
an efficient way. During this effort the user end applications were
verified over MPLS QoS capable core and edge by using Fiber To The
Home Technology (FTTH) and Optical Network Terminal (ONT) devices that
offered Triple Play Services to the multi-service network built during
the Spring testing . Sample test suites include:

-- IETF RFC-based tests following standard performance test
methodologies: RFC 2544, RFC 2889

-- Layer 2/Layer 3 performance and functionality tests including
Quality of Service (QoS), IPv4/IPv6 tunneling, data integrity,
sequence checking, VLAN functionality, and error handling

-- IP/MPLS routing performance and functionality tests: BGP,
OSPF, IP Multicast , LDP, RSVP-TE, Layer 2 VPN (Martini), Layer
3 VPN (RFC 2547 bis), VPLS

Ixia provides with IxScriptMate a powerful and highly
sophisticated Tcl Application Programming Interface (API) to the test
environment for additional customized automation development. Ixia's testing solutions are used by
Network and Telephony Equipment Manufacturers, Semiconductor
Manufacturers, Service Providers , and large Enterprises to validate
the functionality, and reliability of complex IP networks, devices ,
and applications. By contrast, standard security strategies receive wide-ranging
scrutiny by the developer community, and the process of interoperability
testing forces mutual technology disclosure . For more information on Ingate Systems, visit
www.

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Vendors participating at the Leading Edge Code testing included
Alcatel, Avici Systems, Chiaro Networks, Cisco Systems, IXIA, Juniper
Networks , MRV Communications, Navtel, Redback Networks, Spirent
Communications, Sycamore Networks, and Tellabs . During the week long test
effort, constraint based shortest path first (CSPF) was verified
amongst the optical and GMPLS edge devices. With remarkable simplicity,
IxScriptMate automates management of the entire test environment,
facilitating data traffic generation, IP routing, filtering,
capturing , and statistics collection. Both products support Transport Layer Security
(TLS) for secure SIP signaling and SRTP for encrypting audio streams.

SRTP is ideal for protecting Voice over IP audio traffic because it can be
used in conjunction with header compression and has no effect on IP Quality
of Service.

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Unless otherwise indicated, other
trademarks are the property of their respective owners.
SPRING VON -- Ingate Systems
(http://www. The
successful completion of interop testing between the two companies offers
customers a secure solution for voice traffic: the combination of a snom
phone with an Ingate Firewall ensures a secure, reliable VoIP
environment. "Single-vendor , proprietary
security schemes, developed under wraps, may or may not provide genuine
protection . snom is privately held and incorporated under German law.

luciani masinter

The effort also included
the MPLS-GMPLS migration scenarios that validate the usability of the
GMPLS core in the IP layer to map the traffic dynamically.ixiacom.com/IxScriptMate

About Ixia

Ixia is a leading, global provider of high performance IP network
testing solutions.

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"The interoperability event was an excellent opportunity for us to
work with carriers and vendors in a non-competitive environment," said
Dr."
"NTT is pleased that through the strong participation of vendors
and carriers, and the successful demonstration at the iPOP 2005
conference as well as the recent Spring Leading-Edge Code testing at
Isocore , GMPLS technology is becoming mature and close to commercial
deployment phase," said Tohru Matsunaga , Executive Manager, NTT
Network Service Systems Laboratories, Tokyo, Japan. The layer 3 VPNs were tested with Route Reflectors configured in
the core, which helped in reduced configuration and better scalability
verification of the Layer 3 MPLS/BGP VPNs. GMPLS UNI
models were also considered as part of this test effort.