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COMMUNICATION NETWORKS
Vegayan Systems
Virtual Space (VS) Routing Algorithm
A highly scalable, fast and
dynamic routing scheme using VS representation has been
developed. Performance analysis of the VS based routing
scheme is being carried out with the Network Simulator.
SPONSORED PROJECTS:
Performance analysis of the VS based routing scheme is being
carried out with the Network Simulator.
Implementation of real-time routing protocol on
Linux platform
--Phani
- M.Tech (KReSIT) - 2005
A real-time routing protocol has been
implemented in Linux. The control plane functionality ,
which includes both dynamic cost mechanism and 'hello'
packet have been implemented in a modular fashion. Hashing
mechanism is used to store the packet next hop interface for
fast path computation. Hello packet provides routing scheme
quicker failure recovery. API has been provided to access
the VS routing scheme control parameters from an
application.
Research is carried out on the use
of Network Processors in the field of network system design.
Current research focuses on both layer 2 and layer 3
implementations on Network Processor.
The lab posseses
Intel Network Processor Evaluation
Platform for following processors:
Implementation of Scalable Ethernet bridge with Auto-discovery
and Auto-updates using Network Processor
--H.P.Shringarpure, G.P.Saraph and D. Majumdar, National
Conference on Communications (NCC) 2006, New Delhi.
Intel's Network processor platform is used for
implementation of a scalable ethernet bridge. The
auto-discovery functionality for addition of new nodes and
the update functionality have been implemented. The
multiprocessing and multithreading capabilities of IXP have
been exploited to have an optimized implementation.
Implementation of Dynamic Routing Algorithm on
IXP 1200 Network Processor
--Darshan
Mujumdar DD (EE) - 2005
Intel’s IXP1200 Network Processor is used for
implementing a traffic engineering solution at the routing
level. A dynamic, real-time routing algorithm has been
implemented on the IXP1200 and its performance evaluation
has been carried out.
Implementation of Protocol Independent
Multicast -Sparse Mode on IXP 1200/2400 Network Processor
Platform
--
Girish Dadhich, Himanshu
Shringarpure, Prakshep Mehta, Supriyo Chakraborty
The
PIM-SM mode for multicasting over a network was
implemented over the IXP 1200/2400 Network Processor
platform. The project was presented at INTEL IXA
Student Research Contest, held at Bangalore in
Sept 2005 and won the 1st Runners-up position.
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TRAFFIC ENGINEERING & QOS :
Setup of MPLS test-bed and implementation of
DiffServ over MPLS-TE
--Sundeep
Singh- DD (EE) - 2005
A test-bed consisting of seven Linux
machines, five of which are configured as DiffServ over
MPLS routers, has been set up. Linux traffic control
filters, used for queuing and scheduling, are implemented.
A custom MPLS scalar MIB is written and the Net-SNMP (open
source SNMP protocol suite) code, for querying the custom
MPLS MIB, has been extended.
End-to-end QoS in Interdomain routing
--Nishant Kumar- DD (CSE)
- 2005
A novel approach to achieve
end-to-end QoS support by proposing a new Alliance Network
model, comprising of several ASes from different tiers has
been developed. The most important aspect of the proposed
model is its compatibility with existing BGP infrastructure,
and providing evolutionary path for QoS support. The
Alliance Network sets-up interdomain paths for premium
traffic, requiring specific QoS guarantee, while the
traditional BGP traffic continues in a normal fashion. OPNET,
a comprehensive development tool for modeling of
communication networks is used to implement BGP on a
designed network topology.
Optimization in SONET-WDM ring
networks and P2MP multicast tree:
Reduction of ADMs in SONET-WDM rings under stochastically
varying traffic and Optimisation of P2MP multicast tree
--Gaurav
Bhati - DD (EE) - 2005
Two NP class optimization problems in
networking have been tackled and heuristic solutions to each
one, were found. First problem deals with reduction of ADMs
in SONET-WDM ring networks. The second problem is
Optimization of P2MP multicast LSP trees. The nature of
internet traffic was assessed and a framework for the
stochastic analysis of internet traffic was formulated. a
heuristic called as the ‘‘least loaded ADM elimination’’ for
the ADM reduction problem has been proposed. Optimal P2MP
multicast trees is a NP-complete problem since it can be
converted into Steiner minimal tree problem. Hence, for
large networks the computational complexity becomes very
high. Therefore, heuristics were used to construct trees
which are computationally feasible and utilize near optimal
bandwidth.
Recent papers
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"Traffic Engineering and
Network Planning Tools for MPLS Networks", Dr. Girish P.
Saraph, South Asian Network Operators Group VII (SANOG),
January 2006, Mumbai, India.-
"Diffserv over MPLS : Tuning
QOS parameters for converged traffic using linux traffic
control", Sundeep B. Singh and Girish P. Saraph,
National Conference on
Communications (NCC) 2006, New Delhi.
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"Implementation of scalable
Ethernet bridge with Auto-discovery and Auto-updates using
network processor", H.P.Shringarpure, G.P.Saraph and D.
Majumdar,
National Conference on
Communications (NCC) 2006, New Delhi.
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"Highly Scalable and Dynamic
traffic engineering scheme for MPLS Networks", Girish P.
Saraph, MPLS world congress 2005 ,
Paris, France.
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"Converged communication
Networks", Girish P. Saraph, Electronics and Information
Technology Exposition (ELITEX) 2005, New Delhi.
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"Implementation and
performance evaluation of packet forwarding scheme based on
VS routing scheme on the network processor platform",
Darshan V. Mujumdar, Himanshu P. Shringarpure and Girish P.
Saraph, INTEL IXA Education Summit 2005, Hudson,
Massachusetts, USA.
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“Traffic Engineering using
New VS Routing Scheme”, G. P.
Saraph and P. Singh, The IEEE International Conference on
Communications (ICC 2004), Paris, June 2004.
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“New Scheme for IP Routing and Traffic
Engineering”, G. P. Saraph and P.
Singh, High Performance Switching and Routing Conf.
(HPSR-2003), Torino, Italy, June 2003.
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“Simulation of IP over ATM over SONET
Layered Architecture”, V. Shah and
G. P. Saraph, 9th National Conference on
Communications (NCC 2003), Chennai, Feb. 2003.
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“IP
over ATM over SONET Implementation”,
V. Shah and G. P. Saraph, Academia Industry Meet (AIM 2002),
I.I.T., Mumbai, Jun. 2002.
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