cisco ipv4 to ipv6 translation and communication between ipv4 and ipv6 and dual stack ipv4 and ipv6 coexistence and ospf tutorial ppt
Performance Evaluation of
OSPF and IS-IS Routing
Dual-Stack Mechanism ABSTRACT
The Aim Of This Dissertation Is To Investigate,
Evaluate the Performance of Two Most Popular
Link-state Routing Protocols(OSPF & IS-IS) When
Configured In IPv4/IPv6 Dual-stack Enterprise
The aim of the work was to provide proof-based
advice for selecting the protocol that offers optimal
performance in business enterprise networks.
With Respect To Several Performance Metrics:
(2) Packet End To End Delay,
Simulation Tool Used: Opnet Modeler 16.0Thesis Aims and Objective
1.) Firstly Discuss In More Detail The Dual Stack Over An IP
Network And The Possible Subservices Offered With The
2.) Thesis Aims To Provide Tangible Performance analyzing
- Regarding Network Metrics:
2.) End-to-end Delay
This Will Be Achieved By Simulating OSPF And IS-IS
Function On a Dual-stack Enterprise Network By Using
Network Simulation Software.Continued ....
3.) Design Proposed Model For Dual-stack Enterprise
Network Using The OPNET 16.0 Network Simulator.
Comparing And Analyzing Its Performance Has Been
Tried Under Various Scenarios, Including Well Accepted
Models By Dual-stack Enterprise Network Applying
Different Mechanisms.IPv4-IPv6 Dual Stack
Support IPv4 only
Support dual IPv4 and IPv6
- In Dual Stack, Both protocols IPv4 and IPv6 run parallel on an equivalent
network infrastructure don’t need encapsulation of IPv6 inside IPv4 and
vice versaDual – Stack….
○ Easy to understand and
Need for IPv4 addresses on
Extra address advertisement
○ Lower packet-loss rates
More CPU-memory overhead.
○ Higher throughput rates .
○ Direct communication
between nodes .
○ Recommended solution .Dual-Stack Router Structure and
○ A dual-stack router holds both IPv4 and IPv6 routing
tables which are used according to the IP version that the
router is about to forward.Open Shortest Path First
Link state routing protocol that was developed by IETF in 1987
○ Interior routing protocol, its domain is also an autonomous
○ Special routers (autonomous system boundary routers) or
backbone routers responsible to dissipate information about
other AS into the current system.
○ Divides an AS into areas
○ Error Handing Capability
○ Fast & loop less convergenceOSPF (type of links)IS-IS (Intermediate System to
Intermediate System Routing Protocol)
○ It is also a link-state routing protocol with several similarities
with OSPF protocol, such as the use of the same SPF algorithm.
○ It was defined by ISO (International Organization for
○ IS-IS is based on the primer OSI (Open System
Interconnection) reference model.
○ It provides rapid Convergence when a topology changes.
○ Minimizes the routes and reduces the size of routing table.
○ Low bandwidth utilization
○ Multiple routes are supportedSimple IS-IS NetworkSimulation ScenarioLiterature Review
A. Basu et al., studies the stability of the OSPF protocol under steady state
and with interferences. In this study we will see what effects are given by the
TE (Traffic Engineering) extensions on the stability of a network when OSPF
is running. OSPF TE extensions provide mechanisms for ensuring that all
network nodes have a consistent view of the traffic parameters associated with
the network. The authors also analyze whether it is possible to accelerate the
convergence time of the network, analyzing the Hello packets and the number
of route flaps.
B. Albrightson et al. They explain that EIGRP is a protocol based on a
hybrid routing algorithm, sharing some properties of distance vector and link
state algorithms. This protocol is the first Internet protocol that addressed the
loop problem. Other aspects which shows are the type of metrics, the
transport mechanisms and the methods used to discover the networks, among
D. Pei et al. show the design and development of a method for detecting
RIP routing updates. Specifically, RIP-TP protocol is presented. It uses hop
count as routing metric. The authors emphasize its efficiency, simplicity,
low operating cost and compatibility with the standard RIP. In order to
assess the design efficiency, they show a series of experimental simulations
to demonstrate that it is possible the improvement of fault detection in
routing protocols. They particularize these evidences with RIP.IPv4 Throughput (TCP Traffic)OSPF IPv4 Clients End-to-End Delay (TCP Traffic)IS-IS IPv4 Clients End-to-End Delay (TCP Traffic) OSPF IPv4 Clients End-to-End Delay Variation
(TCP Traffic) IS-IS IPv4 Clients End-to-End Delay Variation