[ns] Mesh topology tcl script

2007-10-29 Thread Brenda Lindsay Williams
Can anyone give me an idea of what packet traffic will look in a mesh topology? I need a template to work with... Pls attached to this mail is a diagram of what I'm working with to give you an idea.. Thanks Brenda

[ns] Dynamic routing at the core

2007-10-29 Thread Brenda Lindsay Williams
Can someone pls help me? Attached to this message is a figure of the model I'm using for a project... I'm connecting 4 WAN models via an edge network to a core network... Now I want to employ dynamic routing (incase of link failure) for connectivity between the edge network and the core network

Re: [ns] Mesh topology tcl script

2007-10-29 Thread Brenda Lindsay Williams
network (in your case the core network). They are also responsible for accepting traffic from outside networks (again, your core network). I think that multicast should work fine at the core. On 29/10/2007, Brenda Lindsay Williams [EMAIL PROTECTED] wrote: Thanks for your prompt reply

[ns] core network

2007-10-26 Thread Brenda Lindsay Williams
Can you pls help me... I'm working on VoIP core networks... I'm basically connecting 4 WAN models via an edge network to the core... The core consist of only routers whose function is to route voice packets amoongst the WANs... can you pls give me an idea of what my tcl script will look like I

[ns] core network

2007-10-25 Thread Brenda Lindsay Williams
Can you pls help me... I'm working on VoIP core networks... I'm basically connecting 4 WAN models via an edge network to the core... The core consist of only routers whose function is to route voice packets amoongst the WANs... can you pls give me an idea of what my tcl script will look like I

[ns] need tcl script showing voice codec implementation

2007-09-18 Thread Brenda Lindsay Williams
Can someone pls give me a script showing voice codec implementation in NS2? I'm working with G.711, but any available one based on the H.323 standard will be greatly appreciated. Thanks. regards, Brenda

[ns] I really need advice on gigabit ethernet

2007-09-18 Thread Brenda Lindsay Williams
Pls I need to know what it takes to simulate gigabit ethernet... I'm sorry cos I know I've asked this question to ns users twice already today, but I have a report to submit tomorrow and I need to know even a little about simulating Gigabit Ethernet in NS-2 I'm working on VoIP core networks

[ns] how can i implement a firewall on a node

2007-09-17 Thread Brenda Lindsay Williams
can someone pls help me? how can I make a node drop malicious packets in a VoIP network? what mechanism can i use to identify a malicious packet? Thanks

[ns] Pls read!!!

2007-09-17 Thread Brenda Lindsay Williams
For QoS routing, to determine the shortest path each link is assigned a weight and the shortest path is the one with the smallest aggregate weight. My questions is, how can I assign a weight value to a link?

[ns] G.711 codec

2007-09-17 Thread Brenda Lindsay Williams
I want to use G.711 codec to simulate a VoIP traffic using an exponential distribution process based on a stochastic model... Can someone pls tell me what properties my packets will have based on the G.711 codec standard... Does anyone have a tcl script depicting G.711 Thanks Regards

[ns] How can I design a WAN in NS-2?

2007-09-11 Thread Brenda Lindsay Williams
I was wondering how to depict a WAN in NS-2 and what topology I can use... I'm particular about routing in such a network in the event that a link goes down.. Can someone pls give me an idea so I know what my tcl script will look like... Thanks. Regards, Brenda

[ns] Is NOAH used for only wireless scenarios?

2007-09-09 Thread Brenda Lindsay Williams
I'm working on an infrastructured wired network environment which requires me to connect 4 WAN models to a VoIP core netowrk (which consists of routers) and carry out performance evaluations using QoS parameters as the performance metrics...By default, ns2 do not support infrastructure network.

[ns] Can NOAH be used as a routing algorithm for this scenario?

2007-09-09 Thread Brenda Lindsay Williams
I'm working on an infrastructured wired network environment which requires me to connect 4 WAN models to a VoIP core netowrk (which consists of routers) and carry out performance evaluations using QoS parameters as the performance metrics...By default, ns2 do not support infrastructure network.

[ns] Noob wants to view trace files

2007-09-07 Thread Brenda Lindsay Williams
can someone tell me how to view trace files after a simulation has run? Thanks

[ns] Need help executing tcl scripts

2007-09-07 Thread Brenda Lindsay Williams
Hi there..Please I need your helpI installed ns perfectly and following all PATH instructions well and validated perfectlyhowever when I try to run a tcl script, I get the following error... [EMAIL PROTECTED]:~/Network-Simulator/ns-allinone-2.32-rc2/ns-2.32/tcl/ex ns % ns example.tcl

[ns] Error Message: warning: using backward compatibility mode error when calling class OldSim: example1b.tcl

2007-09-07 Thread Brenda Lindsay Williams
Hi there, I'm trying to run a tcl script called example1b.tcl, and everytime I tr to un it I get the following error below. [EMAIL PROTECTED]:~/Network-Simulator/ns-allinone-2.32-rc2/ns-2.32/tcl/ex ns % ns example1b.tcl warning: using backward compatibility mode error when calling class OldSim:

[ns] Need help coming up with script for scenario

2007-09-07 Thread Brenda Lindsay Williams
Hi everyone... Pls I'm working on a project which involves carrying out experiments on a VoIP core network...based on QoS performance metrics...jitter, latency, bandwidth consumption, e.t.c I wanna connect 3-4 WAN models to the core network... The core network consists of routers which routes

[ns] Need help simulating model

2007-09-05 Thread Brenda Lindsay Williams
Hi I'm trying to simulate a core network and carry out measurements based on VoIP QoS parameters... I wanna connect 3-4 WAN models to a core network which consists of routers... Can someone pls give me an idea of how to go about this using NS-2... what would my tcl scripts look like? how many

[ns] Need help installing NS-2.31 on 64-bit machine...

2007-08-30 Thread Brenda Lindsay Williams
Hi everyone...I'm having a problem...When I try to install NS2.31 on s friend's machine, I get this error message Victor:/home/mavor/Network Simulator/ns-allinone-2.31 # ls cweb INSTALL.WIN32 otcl-1.13 sgb tclcl-1.19 zlib-1.2.3 gt-itm nam-1.13 perl-5.8.8 stable.tar

[ns] Need help installing tcl8.3.2

2007-08-23 Thread Brenda Lindsay Williams
I'm trying to install an NS-2 version optimized for ATM on a friend's machine...It uses an AMD Turion 64 processorwhen I try to install it, I get this... victor:/home/mavor/Network Simulator/ns-2-snapshot-20010224 # ./configure loading cache ./config.cache No .configure file found in current

[ns] NS 2 core ntwork compatibility

2007-02-08 Thread Brenda Lindsay Williams
Hi everyone. I'm working on a project which involves the backbone/core network of VoIP networks. The core network consists of a combination of routers and switches which handles and controls traffic in the network.Plsis it possible to emulate this core network using NS 2.I'll like to know

[ns] NS 2 core network compatibility

2007-02-08 Thread Brenda Lindsay Williams
Hi everyone. I'm working on a project which involves the backbone/core network of VoIP networks. The core network consists of a combination of routers and switches which handles and controls traffic in the network.Plsis it possible to emulate this core network using NS 2.I'll like to know

[ns] Need help with VoIP backbone topology model

2007-02-06 Thread Brenda Lindsay Williams
Hi there fellow nsers. I'm working on a project which requires me to evaluate level of QoS at the backbone end of VoIP networks, based on two different data link layer technologies...ATM Gigabit Ethernet. Pls I need help in coming up with a topology model diagram. I want to interconnect 4 LAN

[ns] VoIP model for NS-2

2007-01-29 Thread Brenda Lindsay Williams
Hi everyone.Pls I'm researching on an efficient VoIP model for NS2. I want to carry out some simulations relating to VoIP Quality of Service (QoS). I was thinking of the Poisson distributed model but I could really use any input from anyone concerning this issue. I hope someone replies

[ns] Problem installing NS

2007-01-20 Thread Brenda Lindsay Williams
I want to use ns 2.1b7 cos the version I got has an ATM patch already which I need for my thesis.I try to configure it and I get the error message below. __ __ ___ [EMAIL PROTECTED] Desktop]# cd

[ns] Having problem installing ns 2.1b7...gives this error message

2007-01-19 Thread Brenda Lindsay Williams
I want to use ns 2.1b7 cos the version I got has an ATM patch already which I need for my thesis.I try to configure it and I get the error message below. ___ [EMAIL PROTECTED] Desktop]# cd

[ns] Having problem installing ns 2.1b7...gives this error message

2007-01-19 Thread Brenda Lindsay Williams
I want to use ns 2.1b7 cos the version I got has an ATM patch already which I need for my thesis.I try to configure it and I get the error message below. __ _ [EMAIL PROTECTED] Desktop]# cd

[ns] Problem installing NS

2007-01-19 Thread Brenda Lindsay Williams
I want to use ns 2.1b7 cos the version I got has an ATM patch already which I need for my thesis.I try to configure it and I get the error message below. __ __ ___ [EMAIL PROTECTED] Desktop]# cd

[ns] NS patch documentation

2006-12-18 Thread Brenda Lindsay Williams
Can anyone pls link me up to a documentation for developing new protocols for NS?Thanks

[ns] Need help on literature review

2006-12-18 Thread Brenda Lindsay Williams
Hi there.I wanna work on a project relating to VOIP networks.I wanna evaluate IP over ATM against IP over Ethernet.I'm working on parameters that affect QoS (Quality of Service) in VOIP networks.I'm gonna evaluating the following parameters; bandwidth consumption packet loss packet

[ns] ATM service classes

2006-12-16 Thread Brenda Lindsay Williams
I wanna model an ATM network for VOIP based on the evaluation of parameters which affect QoS against SIP H.323 bandwidth consumption packet loss packet delay(latency) jitter traffic thoroughput... Can someone pls tell me what ATM service class will be relevant to model?

[ns] ATM VOIP

2006-12-11 Thread Brenda Lindsay Williams
Could someone pls help me, I wanna create a simulated model of a VOIP network,I wanna carry out a performance evaluation of ATM vs SIP and H.323in VOIP networks using NS 2.To this effect I wanna design a VOIP network using ATM backbone so I wanna know if I can use NS to design the ATM protocol