Network Architecture

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Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.

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hi guys

I'm currently trying to put a plan together to senior management for a strategy for their infrastructure and security. I have only just been hired for the project. My role is to provide leadership for the infrastructure and security teams.  I know exactly what I need to do, but my issue is that I'm trying to put this into a structured plan to follow in steps, but articulating this properly has been a bit of a challenge. The purpose of the plan is to liaise with important stakeholders to understand the vision/mission of the business goals in order for I.T to better support them.

At the moment, I've gone and met people in the teams and asked them about how things work, the infrastructure and the security in place. But, that's not part of a structured method/plan.

For example, I am setting the plan together in phases. In the first phase, I want it to be the understanding phase. So something like 'meet with direct reports'. Then 'understand from direct reports, their roles and responsibilities by spending two hours in the first week with them'.

Then something like 'exploring vulnerabilities across all verticals to identify shortfalls affecting productivity....' (or anything similar'.



The purpose is to expand this into phases, so that I can come up with a conclusion and show senior people as to what I will do in the next X number of months.



Do you guys have any plans you created or know of any good structure that is out there which can be …
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Angular Fundamentals
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Angular Fundamentals

Learn the fundamentals of Angular 2, a JavaScript framework for developing dynamic single page applications.

Once you've used up all your private RFC 1918 space, are there certain non RFC 1918 IP blocks that are best practice to use for internal addressing?
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Hi,

I have Cisco 3750 switch. I configured 3 Vlans on it. VLAN 10,20,and 30. Is there anyway that I can give VLAN 10 access to  VLAN 20 and deny it from access VLAN 30? I mean I want network of VLAN 10 and 20 to see each other and communicate but can not access network of VLAN 30

VLAN 10 network 192.168.1.0
VLAN 20 network 192.168.2.0
VLAN 30 network 192.168.3.0

Thx
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Hi experts,

I wish to know if I should divide a network in to subnets or I can use vlan or both?

Say if I use 192.168.10 as my network and the last octet as my host if I want 4 hosts I can simply chop it up with new subnet mask of 255.255.255.192 which gives me 4 hosts network (each subnet shouldn't be talking to one another unless I do some routing and set rules). I can also group the switch ports into different vlans and assign different network to each vlan. Say if I divide a 48ports switch into 4 hosts, then I will have 12 switchports per vlan and 192.168.10.x to vlan1 192.168.20.x to vlan2 etc... and device in different vlan will be assigned with different IP.

Will there be a case user will use subnet in conjunction with vlan? say if I divide the 192.168.10.x into 4 hosts and assign each host to each of the vlan instead of using different network? OR people will use either vlan or the subnet but not both together? Thanks.
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We have a new building and I'm wondering what is the best to use, either a ladder rack or conduit for running about 70 cat6a cables and some fiber cables about 70 foot distance and about 20 ft in elevation from the basement to the 1st floor.  There is a hall way and 2 or 3 rooms between my server room and data closet.  There are tiles in the ceiling.
My general contractor is stating that ladder trays would be best and my low voltage is saying conduit is best.

I'm looking at it from a long term  situation, I want to make it as easy as possible for me to pull more cables as needed.  In the past, I had a conduit that was full of cables, and when I tried to pull more, my run got stuck and I couldn't pull any more, had to get a company to bore and install new conduit, so I don't want to experience the same situation.
With a ladder rack  or wire basket, I'll have to pop the tiles every 10 feet or so and get on ladders, so I guess it's more work, but I wont' have to worry about not able to pull more cables in the future.

Any suggestions?
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Hi guys

I want to do a course in Cybersecurity with someone who knows their stuff backwards and whom I could learn a lot from from their teaching.  I'm a member of Pluralsight, which is great too. But I have worked with some talented people and you can learn exponentially with an absolute 'don' who knows how and what to teach. Do you guys know of names of individuals, whether on here or in and around London who you would highly recommend learning from and whom offer their time to do so?

Thanks
Yash
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Hello Experts,

I have 5 devices and I want to have them monitors for any up and down status for the IPs.

Is there  a free software I can install in one of the servers and add these devices.

Thanks,
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Dear experts,

I have a network with Servers and end points that need to communicate via IP and TCP ports. I would like to add these IPs to our SolarWinds management, can I also monitor TCP specific ports connection.

On the network or server how can I find how many TCP ports are established between the server and clients.

Any Feedback will be appreciated.
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Hello Experts,

I am at a customer site and I see that they have fiber connectivity  from distribution switch to access switches. When I look at the configuration I do not see any UDLD protocol applied.

My question is can I apply the UDLD protocol on the distribution switch and access switch globally and will that affect the uplinks. I am hoping to not have any distruption on the network.

Please assist
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I have SC-LC orange from carrier's DMARC to the patch panel.  How to know for sure is it a single-mode or a multi-mode?
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Introduction to Web Design
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Introduction to Web Design

Develop a strong foundation and understanding of web design by learning HTML, CSS, and additional tools to help you develop your own website.

Does anyone know what RADB routes are?  We are requesting a LAN public IP from the Internet carrier that was promised.  Now they give us run around saying the route set belongs to RADB and they cannot update RADB route sets.  If the customer wants their prefix [1.1.1.0/24] to be routed via BGP, they would need to contact RADB to have them update their route set.  
We do not need a BGP.  Just requesting a public LAN IP address.

Does anyone know what does prefix belongs to radb mean?  I'm running the Whois and looks like the prefix belongs to my internet carrier.  Not to radb some sort.
Does the carrier give me a BS runaround on this?  It feels like it :)
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Hello Experts,

I have issue with an external client, he is using
a laptop with Cisco anyconnect vpn client and he would
usually connect to the vpn and would be able to browse the
internet and also access internal resources, shares and sites.

Today he connected from home and he was not able to browse anything,
I checked his laptop remotely and I was not able to ping google or resolve
any DNS names. To get him going I gave him default gateway IP in his VPN connection
but I am not suppose to do that.

My quest is why when he connects to vpN, the DNS stops.
I tried to replicate the issue using my hotspot and on my laptop
but i did not get the same symptons, my VPN does not give me GATEWAY ip and I
am able to browse plus access the internal resource.

I am certain this issue is local to his internet connection
at home.Please do let me know if anyone has any suggestions.

Thanks,
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We will be moving to ERP and Warehouse apps and need to install Wi-Fi throughout the plant and warehouse. Very roughly the area is 45,000 sq ft., with perhaps 25 foot ceilings. The factory (food processing) has a great deal of motors running, conveyor belts along the ceiling, etc. Very hot in the summer. Any tips on setting up Wi-Fi?
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Hello Experts,

I have 200 MEG internet connection and recently due to business demands and changes they want to transmit in and out close to 1000 packets each will be 1 MB = 6000 MB worth of transaction over 8 hours daily, I want to know how to put this in a calculator to check if I will have enough bandwidth.

Can any of the experts recommend how to check this type of demand against the bandwidth and determine utilization consumption/

Thank you,
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Just met with carrier tech.  He left me bunch of blue sc-lc fiber cables.
 Mentioned blue is a new yellow and aqua is a new orange.   Better throughput and better flex.
 is there a specs somewhere to learn about these new cables?
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HP 2930 switches use VSF for stacking. Documentation describes "chain" and "ring" configurations.  Is it possible to use VSF in a "star" configuration?
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Hi Experts

Could you point the alternatives to assemble a LAN using Windows Server and clients?

Coaxial cables, optical fiber are options?

If so what is needed to implement it?

Thanks in advance.
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Dear Wizards, currently in our network, ESXi hosts are connected to Core switch on VLAN 55, then all the VMs inside the hosts are in that VLAN. If we like to configure trunk link between Core switch and ESXi hosts (so that VMs can be in different VLANs), what should we change ?
Many thanks!
1
Hello Experts,

I at a customer site and they a VALCOM V-2006A Amplifier , I configured the SIP paging adapter and connected it to the Valcom V-2006 Amplifier, the SIP adapter has paging extension. Now the question is how the speaker should connect to this amplifier? What do I do to make this work?

I don't know much about the VALCOM V-2006A amplifier and I need this to work.

Thank you,
0
Exploring SQL Server 2016: Fundamentals
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Exploring SQL Server 2016: Fundamentals

Learn the fundamentals of Microsoft SQL Server, a relational database management system that stores and retrieves data when requested by other software applications.

Thousand Eyes seems like a really good software.  Helped me to figure out routing issues.  Love to deploy it our Data centers. Worth to have paid account?
Wonder what other forks are using?
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Hi guys,

I got a dlink router DSR1000N
And got dlink switch dgs1510
And got dlink access points

I got 2 ssid- admin and guest
I want to setup 2 networks for vlan1 admin and vlan5 guest

So I created 2 vlan in switch and connected it to dlink router. So connecting ports from switch to router are as trunk.

And which ever port from switch connecting to access point I made it as - vlan1 untag and vlan5 as tag. So is this setup correct ??  
Just want to make sure before trying it in a live environment
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I have an idea to create a separate DNS zone for the wifi network.  Segregation would help with administration and management.
 Does anyone do that already and does it help?  Has any benefits?
My concern is the lag maybe longer when moving laptops from wired to wifi network I think. Any other concerns?
 Please advice.  Thank you!
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This server will host 200 network cables and many servers.
Our plan is to setup one two-post rack and two four-post racks (or cabinets). And here are the questions

1.  Should we install all the patch panels AND the network switches on the two-post rack? Or, install only the patch panels on the two-post rack, install the switches on the four-post racks (or cabinets) along with the servers?

2. Should we use four-post racks or cabinets?
I understand cabinets offer one more layer of security. Is there any other benefit to use cabinets?

3. Should we install the two-post rack in the middle of the two four-post racks (or cabinets)? Or, this doesn't matter?

4. Any other thoughts or suggestions??

Thanks!
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I recently got a new customer whose network contains a few vlans.
This is an example from the router configuration:

Interface: eth0.20          
IP Adresse: 172.17.20.1/24

Interface: eth0.21
Ip adress: 172.17.73.251/24                  
                 172.17.73.250/32
                 172.17.73.253/24

I would like to understand why the network at interface eth0. 21 has three ip addresses. Can someone explain that ?

regards
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If you connect to Azure via Direct Connect - can you direct traffic to your data center with a default route in your VPC? That is say I want all traffic from my VM in Azure to traverse express route to my data center and go through a specific firewall. Is that possible? It is not possible with Amazon VPCs and Direct Connect. You can only do that if you can advertise a default route over the Direct Connect. You can't specify a static route to send all VPC traffic over DX.
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Network Architecture

12K

Solutions

11K

Contributors

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.