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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Any thoughts on the  ARUBA IAP-205 WIRELESS ACCESS POINT s?

I have about 4 or 5 outhouses and I want an goof Wi-Fi solution.

Thank you.
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How can I tag traffic on physical interface of a Cisco router?
I know I can create sub interface but I want to know if it is possible on a physical interface.
There is a command vlan-id dot1q available for physical interface but does not work.
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Dear guys, I have this scenario:
- The original IP network which ISP provide: 13.14.24.160/28 (no worry, it's fake)
- I don't know why the IT guy who worked here before request ISP to split that network to 2 subnets: 13.14.24.160/29 and 13.14.24.168/29
- However, I was handover the instructions to get Internet for LAN network as the attached picture without any other explanation

Can anyone help me to answer these?
- Please explain the way end-users in LAN network to go the Internet. Which IP network should we configure in users' PCs?
- Please give me some ideas that clarify the purpose of the splitting?
- Can I place the pfSense firewall in the Router position? If so, is there any device/configuration we need to focus?

Many thanks as always!
Diagram.png
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Dear guys, can you please explain the advantages and disadvantages of Wireless Transmit power? Why do they always recommend -65 dBm for users? If I increase the AP's power to the maximum, is it always good?

These attached pictures display the coverage when changing AP's power. I use VisualRF to test HP AP Aruba 205H, can you suggest some ideas about the results?

- Red color: -45 dBm
- Orange: -55 dBm
- Green: -65 dBm
- Blue: -75 dBm
Auditorium_18dBm.PNG
Auditorium_12dBm.PNG
Auditorium_10dBm.PNG
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I have two locations with almost duplicate setups.  
Location 1:  On a network run by a PDC.  The ISP is a cable company.   The one office in this location has 3 computers all connected to the network via a Netgear 5 port switch.  But also connected to this switch is a DSL connection via a dsl modem line to a preset location..  When the users need to connect to this dsl line they just click on the shortcut created on their desktop that directs them to the preset IP address.   All other communication for everything else goes through the regular PDC/cable network.  Using DHCP and automatically sees PDC as DNS provider.  Works great.

Location 2;  On a network but run just by a router, not a PDC,  through the local Cable company.  Two computers connected via an identical 5 port Netgear switch as in the location 1.  They have the the exact same dsl line via the same dsl modem connecting to the same IP address as in location 1.  The problem is that you can only connect to one or the other in location 2.  If you want to connect to the dsl location via the dsl modem, you have to disconnect the cable from the router from cable company at the Netgear switch.   Or if you want to  use cable you need to disconnect dsl modem from switch.  Also running DHCP and DNS being provided by either the DSL or cable depending on which you are using.  

What would cause one to work and the almost identical one won't?
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My networking skills are limited and I am presented with a problem.  I need to get a 10. subnet to talk to a 192. subnet.  What do I need to do/configure, and is it possible?
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Hello Everybody ,
 
 need you support RnS Expert Engineer

my scenario , the requirement are the router automatically move the the traffic flow based  link delay by using PFR with active/ active  by using Active/ Active ISP link utilization .

 here  are requirement and configuration    

LAN subnet :-
 188.117.100.172/29
 188.117.124.36 /29
my goals  to measure the traffic over all the available ISP
the  primary path of the first subent  is  ISP 0A, primary path of the 2nd subnet is ISP02
if the any ISP link experiencing any delay the  inbound and outbound shift the traffic automatically .

MY BGP configuration  
ip bgp-community new-format

outer bgp 7770
 bgp log-neighbor-changes
 timers bgp 10 30
 neighbor 172.21.8.169 remote-as 41176
 neighbor 172.21.8.177 remote-as 41176
 !
 address-family ipv4
 
  network 188.117.100.172 mask 255.255.255.252
  network 188.117.124.36 mask 255.255.255.252
 
  neighbor 172.21.8.169 activate
  neighbor 172.21.8.169 send-community both
  neighbor 172.21.8.177 activate
  neighbor 172.21.8.177 send-community both

ISP's BGP Configuration

neighbor 172.21.8.170 send-community both
  neighbor 172.21.8.170 default-originate
  neighbor 172.21.8.170 soft-reconfiguration inbound
  neighbor 172.21.8.170 prefix-list  PFR out
  neighbor 172.21.8.170 route-map BGP_COMM in
  neighbor 172.21.8.178 activate
  neighbor 172.21.8.178 send-community both
  neighbor 172.21.8.178 default-originate
  …
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Hi All,

I'm currently looking at this proposal & thinking of implementing OSPF & MLPS I'd like some support with the config & any ideas of best practices?

Thank you all.
ospf.PNG
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I have a security camera project that requires a run of about 1000FT for a few cameras.

I know Cat5/6 are not options due to the 300ft limitation.  I guess I could use POE switches at 300/600/900 ft as repeaters but that doesn't sound like a viable solution.

any ideas?
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I have 20 hard drives from pc. Different size from 80 to 2 tb

What's the most affordable way to use them together n raid
So i can use in my home network?
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Greetings,
I've fumbled around doing research on this issue, but am no closer to figuring it out.  In short, I am trying to access www.bcid.org from inside their office network and cannot. They are on a domain by the name of bcid.org and connected to a single Windows 2008 R2 server (that I did not set up).  The site can be accessed from outside the network and is hosted externally.

When I browse to the website in a browser, I get the error:
Forbidden
You don't have permission to access / on this server.
Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.

When I ping www.bcid.org, I get the IP address (64.224.215.186) but the requests time out.  As a test, I've tried changing a workstation's DNS to 8.8.8.8 / 8.8.4.4 but still get the same issue.  I also flushed the DNS with no change.  I tried changing  the local hosts file on this workstation but also didn't see a change after adding a line for 64.224.215.186 www.bcid.org.  I just did an NSlookup from this workstation and got the server as the Google DNS server  and the Non-authoritative answer as:
www.bcid.org.bcid.org
64.224.215.186

I'm at a loss as to where to go from here or what the issue even is.  Thanks!
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Dear colleagues, I'm trying to find
Network diagram examples and official requirements for all 7 layers.
And also I would like these requirements with citing sources.
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Hi,

Can you please help me in draft IT policy for Call Center & contract center. recently we open the joint venture company for travel solution and we required an IT policy for this organization.


Regards,
Naresh
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I have solarwinds to monitor the traffic .
I see (in solarwinds) cisco fast ethernet with 100% utilization although  the top conversation appears (in solarwinds)  in small payload of traffic in KB level .
How does that occur?
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Hi All,
I have been at this all day to no avail.
I am using Yealink IP Phones. The customer now wants to run his laptops with the phones. So the PC's run through the phones.
The phones use their own gateway on port 1 and the PC's use their own on port 24.
In addition to VID 1 created VID 20 for the Data on all ports and Voice on VID 50 Voice as per this example I found.
Phones and PC's are on all the ports except 1 and 24.
AlI really want to do is give priority to the IP Phones.

[url="http://www.dlink.com/uk/en/support/faq/switches/layer-2-gigabit/dgs-series/es_dgs-1210_como-configurar-voice-vlan"]

The phones don't work and neither do the PC's when activated.
I have also setup the phones WAN port with VID 50 and the PC port with VID20.

Any help is welcome
I have not tried tagging P1 and P24 on all 3 the VLANS.  

Thanks
Ken
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hello
is there any way to make this network work without having network loops (see attached diagram)
--all switches are layer 2 only
--2 floors in the same building
-- each floor has 9 layer 2 switches
-- the 2 floors are connected to each other via the 2 switches on each floor
network-drawing.pdf
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Hello,

The forums seem very helpful, but I am just not able to wrap my head around either traffic shaping or Qos. Essentially, calls drop and are patchy at times that we are at high utilization of the pipe. We have a border switch that is connected to our primary and failover routers.  On that switch is a Voip system with a public IP address, so no voip traffic ever hits the firewall (Also behind border switches) . All calls are routed through the lan side internally and out the wan side to the border switch then to the router out to the ISP. I am confused on which interface to apply traffic shaping / Qos, or which is needed. The bandwidth percentage seems like the route I should take. Below is what I think I should follow from this link: https://www.experts-exchange.com/questions/23685026/How-do-i-prioritise-traffic-on-cisco-router.html#answer22371328-20 . Our overall goal is so always have voip high priority and to never had call issues.  I essentially want about 5 percent always allocated to voice, and any other traffic can have the rest, but never to exceed say 95%. Below is the config for the interface on the router as well as what I think I need to add:
interface GigabitEthernet0/0
 description ComCast Internet
 ip address x.x.x.x
 ip access-group ComCast-In in
 ip access-group ComCast-Out out
 no ip redirects
 no ip unreachables
 ip bgp fast-external-fallover permit
 duplex full

interface GigabitEthernet0/2
 description LAN
 ip address 172.16.50.10 …
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Hi
 
I'd like to set up a network within VMware® Workstation 12 Pro that is comprised of the following to help with my IDS investigation
 
1 x Kali (attack)  - This my attack VM and has full internet access via my PC Hosting VMWare
1 x Ubuntu (IDS) - This VM has an IDS on it to inspect traffic between the  'attack' VM  and the target VM's
2 x Target (Windows + Ubuntu) - These are the Target VM's, I'd like the traffic from these to always go *through* IDS

Essentially I want to be able to see all traffic from / to the Targets through the Ubuntu (IDS) machine and ensure the Target machines' traffic is routed through the Ubuntu (IDS)
 
I've got the VM's running individually within Workstation, but I cannot work out how set the network connectivity correctly, I've tried NAT, Host etc. - but I can't seem to get the right combination.
 
Any help would be really appreciated.
 
Thanks
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good day,

I have a relatively simple requirement to have an access point broadcast 3 wifi networks that are each on a separate VLAN. however i ran into some issues with the switch as it works fine when the WAP bypasses the switch and plugs direct into the Security Appliance.  The end result is to achieve a configuration where a client will be on a different VLAN and IP subnet when it connects to each wifi network that the WAP is broadcasting.  Again, when the WAP is linked directly to the security appliance, it works as planned.  so it may be safe to assume that the security appliance is not the issue.  i should note that the security appliance is providing DHCP services for each of the 3 VLANs without issue when the WAP is plugged directly to it.

Our issues begin when the switch is inserted in the middle and we begin trunking.  When port 21 on the switch is patched to the Security Appliance, all IP connectivity to the switch itself goes down and IP connectivity between clients connected to the switch also goes down.
And port 21 shows as down/down at that point so it wont establish physical link.

is the switch doing some sort of blocking?  my setup is below:


Here are the details:

3 Devices Involved:

1 x Wireless Access Point with a native (default) VLAN ID of 1
1 x Catalyst 2960x switch with a native (default) VLAN ID of 1
1 x Meraki MX 84 Security Appliance as the internet gateway with native (default) VLAN ID of 1

Connectivity looks like this:
0
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I’m looking for a good architecture to be able to efficiently query data currently stored in NoSQL dbs (specifically DocumentDB).

We have a number of microservices that manage various entities (say client, product etc). Each store their data locally (in DocumentDB). We want to create another microservice that provides the ability for real time (latency on the order of seconds) ad-hoc queries over this data.

One option is to replicate all this data and store it in an SQL db, and build the query service on top of it. I expect this would make the queries quite fast, especially if we index all columns. (Of course, since this data keeps changing, we’d listen to a message queue for db updates.)

Is this the best way? How do companies go about building ad-hoc query functionality of NoSQL data? This seems like a problem that many large companies would have to solve. (I am new to NoSQL and microservice architecture, so I might be missing something basic.) Any suggestion/alternatives are appreciated.
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If hardware is all the same, what's best practice for OSPF cost?


Left:
Egress and ingress are opposite of one another.  (Egress/Ingress are not on the same connection)  I like this setup, but i'm not sure if its best practice compared to the far right picture.  I prefer this idea because inflow/outflow aren't shared on a link, but is this enough justification to be BP?

Middle:
Each core will be responsible for their "side". (Left core/distro vs right core/distro)  Not sure if this is correct...i'm just guessing

Right:
Primary/Secondary setup.  (Left core takes care of everything, Right Core is backup)
OSPF-FLOW.png
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Looking to setup a wireless Point to Point network to 7 locations each location also has a basic isp.  The point to point will be running at 850mb the isp 20mb.  What is the best way to setup the isp as a backup line to the point to point? I just basically want it to keep my voip and basic data services afloat till the link is fixed.
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Looking to setup a wireless Point to Point network to 7 locations each location also has a basic isp.  The point to point will be running at 850mb the isp 20mb.  What is the best way to setup the isp as a backup line to the point to point? I just basically want it to keep my voip and basic data services afloat till the link is fixed.
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i have tow Huawei switches(s5720-32C-HI-24S) i will use as core switch. i need to implement high availability.
my network consider an enterprise network i have
VLANs
server farm
WAN connectivity to branches
internet access( tow firewalls)
what is the best solution?
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That subject is pretty vague, so I'll expand -

A customer has moved several resources into cloud services such as AWS and Azure. Prior to this, writing firewall rules/filters to regulate which IPs and ports were accessible was a simple/static thing. With cloud-services/applications, IP addresses and ports are much more dynamic, and thus the writing a firewall rule today might not work the very next time the same cloud resource is accessed.

For example, let's say a server accesses url.aws.amazon.com, which then redirects to something within Amazon, which then pulls content from a slew of additional sources, etc. The next time these resources are accessed, the IP addresses being referenced might change due to global load balancing or some other form of redirection.

We obviously don't want to allow all traffic sourced from Amazon WS, Azure, etc., so we're looking for better options to possibly control these type of access without having an "any any" type of policy. The customer is currently 100% Cisco, both for infrastructure and security/Internet edge, but would be open to look at other solutions (or supplemental ones) outside of Cisco.

Thank you.
0

Network Architecture

11K

Solutions

17

Articles & Videos

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.