i3: Interoperating Broadband Technologies
Eric Martineau, Director
US West !nterprise Network
Track the ongoing debates about
Internet technologies. Will D-WDM provide enough "free"
bandwidth for terabit routers, and Class of Service technologies,
to properly service the Internet backbone? Or will the internet’s
hypergrowth and multimedia applications require true Quality
of Service? This track will discus many Broadband "solutions"
from Layer 3 centric, like IP, MPLS, and DiffServ, to Layer
2 centric, like Frame Relay over ATM, and MPOA. Find out about
Mpeg Transport Streams to IP, Scaling the Internet Backbone,
Network Design, Multicasting, Packet over SONET, traffic engineering,
and Extending Public Network to Enterprise. This track will
help you understand who is using what and why.
- Will layer three routing paradigms,
or layer two switching paradigms dominate the market, or
is there a need for both, and if so where?
- Is CoS enough for the Internet
- If DIFFServ works well enough
for the Internet Core, how will it be guaranteed throughout
- What will we do when IPv4
runs out of addresses?
- Will IPv6 and Class of Service
be enough, or will ATM addressing and QoS be the next logical
step in the Internet’s hypergrowth?
Who Should Attend:
senior planners, and network managers and technicians.
June 28, 2000
A Look into the Future
As we move into the millennium,
there is a re-convergence of applications and networks. Applications
technology has moved toward a multi-tiered model, which assumes
information flows over a network. The assumption, however,
is still based upon a "best-effort" (IP) network model. Network
technology is moving toward a finite tiered service level
based model that allows policies to dictate service levels
on an application basis. The convergence is happening in the
mapping of the applications over the network. This transparent
mapping enables new business solutions leading to an increased
competitive advantage. Products and technologies that enable
this convergence allow for an application aware network. These
products enable the IT user to optimize their operational
costs, improve reliability and build scaleable solutions.
In this session, we will discuss
the types of networking technologies that can be used to build
an efficient core IP network. We will compare and contrast
IP, ATM and MPLS technologies on the basis of technical stability
and interoperability, traffic engineering, network reliability,
bandwidth efficiency, and support for multi-service networking.
We will show how each protocol can be used to deliver multiple
classes of service (CoS) and service level agreements (SLAs).
- When will the pragmatic market
adopt applications that demand CoS or need QoS?
- In the mean time will CoS
be enough, or do we need QoS now?
- Are today's routers ready
to handle large volumes of streaming media? What improvements
in routers are required for reliability, scalability and
ease of management to build the public IP network?
- What constitutes a flow?
- Can IP and or ATM completely
take over all communications?
- What are the best practices
for the separation of routing and forwarding performance?
Senior Consulting Engineer
Chief Network Architect
to IP over Everything
The first component of the session
will segment the various sources of IP traffic demand and
discuss their particular attributes and growth rates. This
session will also address the issue of backbone scalability
from multiple layers of the OSI stack. At the physical layer,
the discussion will address the decisions and key issues on
physical network overbuilds and equipment vendor selection.
From a link-layer perspective, the session will discuss the
trade-offs in using IP over DWDM, SONET, ATM and Frame Relay.
From a transport perspective, this session will address how
MPLS can serve to improve scalability and improve performance.
The presentation then shows a
specific approach of interworking the different services and
enabling them to be transported over different networks (TDM,
ATM or IP) which utilizes standard protocols and interfaces.
The interworking functions will be illustrated by protocol
stack diagrams. Essential parameters such as latency and QoS
will be briefly addressed in the course of the presentation
to show that they are taken into consideration.
Debating aside, the real issue
that network administrators face is that the technologies
we have today, namely TDM, ATM and IP will be here tomorrow
and for the foreseeable future. The problem can only be solved
by enabling those technologies to interoperate smoothly and
transparently to the end user. It is also interesting to observe
that there is a great focus on voice services and how those
can be integrated with data services on the same network(s).
- What are the roadblocks to
scaling the backbone effectively?
- What are the Issues relative
to scaling the IP backbone to handle the expected volume
of data and telephony users?
- Why do we need Switched Services
to achieve the highest economical and widest connectivity
Director of Marketing,
Cisco Systems, Inc.
Chief Technical Officer
Merging Layer 2
and 3 Technologies Enables Next-Generation Internet Services
To meet the service needs of
an increasingly sophisticated market, service providers must
be able to adapt existing technologies as well as tap new
ones. Terabit capacity router through-put combined with industry
convergence on IP, QoS based routing, connection-oriented
resource reservation, real-time transport, voice and multimedia,
SS7 and security protocols to IPv4, are forcing providers
to fully integrating the efficiency of Layer 2 transport with
the intelligence of Layer 3 routing. In this presentation
we will discuss the technologies involved in merging Layer
2 and Layer 3 networks. We will also explore potential next-generation
Layer 2 Dynamic synchronous Transfer Mode services, as well
as examine the technical factors involved in bringing all
these services to fruition, to meet the current & future
needs of both public and private network operators.
- What are the technical factors
necessary for success in the next-generation Internet?
- What types of services will
we see as the Internet evolves?
- What will it take to implement
- How can you lower the cost
of network ownership and offer revenue-generating services
- What technologies can respond
to the fast and changing demands of converging datacom and
Director, IP Marketing
President and Co-Founder
Strategic Planning Manager
Increasing demand for new IP-based
services, particularly IP-based VPNs, requires the ability
to "engineer" network traffic. MPLS is seen as a
key mechanism to enable "traffic engineering" and
deliver these new IP-based capabilities utilizing the QoS
features of deployed ATM infrastructures. For these reasons
service providers have expressed great interest in ATM-MPLS
The ability to provide QoS in
data centers is where a new role is emerging for flow switching-based
network devices, highly optimized for Internet Protocols and
services. Devices based on Flow Switching will be able to
combine the traditional attributes of packet switching devices
like LAN switches, including performance and scalability for
connecting Web servers, with complex policy management for
Web traffic including security, load balancing, and Quality
of Service. This session will explore the techniques and mechanisms
used in these new flow switching devices, and the benefits
that are derived for mission critical Web sites.
This session will cover the value
of traffic engineering in large IP networks, provide a brief
primer on MPLS and its current status. We will also look at
MPLS as an integration technology between the optical, switching
and routing planes.
- How can "traffic engineering"
provide QoS with MPLS over ATM?
- How will vendors supporting
MPLS in ATM switches - new and legacy systems?
- Which is better Layer II VPNs
or IP-based VPNs
- What are the network management
challenges from MPLS?
- How will flow switching and
packet switching impact Web response times?
Director of Software
Harris & Jeffries,
Vice President , Technology
Newbridge Networks Corporation