Protocols / Routing :: Measure Network Occupation Per VLANs
Jan 7, 2013
The question is apparently simple. A network is given, consisting of
- 1 network core switch: HP 5500-EI (Layer3)
- 4 access switches: HP 5120-EI (Layer2)
They are connected in the shape of a star (the core switch in the center)The task is to measure the occupation rate of this network on a per-VLAN basis.
For example : To be able to generate statistics like: During the last week - Monday to Sunday - the netowork occupation with VLAN 10 traffic was 30% and VLAN 60 traffic was 70%.
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Feb 4, 2011
I'm setting up a Cisco 3750 layer 3 switch with several vlans. I thought enabling routing would route between the vlans, but no such luck.What I want is to share the internet access of vlan 100 with the other vlans/ip-nets.How can I do that?
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Apr 25, 2012
i need to know that how can i make vlans in Linksys SRW224G4 Layer 2 manageable switch , because i have 100 users network having lots of users using more then 1 ip to connect 4 different servers having different ip class pools, what i need is, i want to use only single ip pool with Class B Address like 172.16.6.0 for all network users which all connect to far end servers through layer 2 Linksys SRW224G4 manageable switch controlling to allow different IP pools ? like 172.16.1.0 / 172.16.55.0 / 172.16.99.0 and 192.168.1.0
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Sep 25, 2011
how to measure the router or swith capacity?
Ex: Actually my problem is, i'm using Dlink 8 port switch, and 40 computers connected indirectly to that switch, few times getting issues like packet drops, internet connecting & disconnecting etc. so i want to know either the switch is capable or not.
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Jan 29, 2012
How can I measure a respond time from a switchport to another? What I intend to do is to measure packets transmission from a server. I have a Cisco 3750G in stack, and the server is connecting to it with a 1GE NIC. How do I measure from Cisco prospective? Any tools available from Cisco to measure such respond time? I have a PRTG on bandwidth management on this particular server switchport and it is around 45-70Mbps, which is less than 10% of 1GE interface.
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Dec 27, 2011
We have two devices connected through a several miles DWDM connection (two switchports 10GBSR).We would like to measure the delay for that connection.
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Dec 26, 2011
I just received a blu ray player for Xmas that has an Ethernet connection for streaming Netflix,YouTube, etc. my problem is my router is upstairs and the blu ray is downstairs. I really don't want to run an Ethernet cable from the blu ray to the router. Can I use another router on the same network and have it close to the blu ray?,I have a netgear router just laying around and the main router is a Verizon fios router.
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Jun 1, 2011
I have a need to use two routers (Each with different ISP) on my (LAN) office network.I presently DO NOT want to go the (Two ISP's on one router, or Load Balancing router). I Just simply want two routers with two separate ISP's.I will assign the managers workstations to the faster ISP, and other Workstation to the slower connection.And it seems to work, and all resources seem to be available on the LAN, regardless of which (Gateway) Router(1 or 2) I point the workstation to.I assume because all devices are on the same LAN 192.168.0.XXX Is this a proper way to allocate and use two routers on the same LAN?
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Jul 27, 2011
I have a local DSL line in our remote office. We are connecting a microwave antennae that carries our main office internet to the remote office.I want to be able to connect both paths to a Layer 3 switch and route traffic through the main office with the router connected to the DSL as a fail-over solution.I would really like to stick with HP Procurve's if possible.
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Aug 24, 2011
I'm trying to connect an Xbox 360 to my University's wireless network using a bridged connection between the wireless adapter and the LAN adapter. I can connect to the internet on the Xbox, but not Xbox LIVE. I get an error message stating that my MTU setting must be 1364 or higher. I obviously cannot access the router settings because they are the schools routers and I do not have administrative privileges. So, Is there some other way to modify MTU settings without that access?
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Feb 19, 2013
I have a problem figuring out how to setup a home network connection running a VPN. I have been looking through the internet for answers and am still not sure how it all works.
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Apr 12, 2012
I had a custom device/computer on my network that was hacked from hong kong. It's one of those things where I seriously think the chinese have built a back door into it when they built it or something because everything was secured and monitored.The device runs it own OS or something like that I guess you could say. It can also run it in standalone mode broadcasting it's own signal. Once I figure this out I may not put it online anymore but thats besides the point right now. When it was hacked I'm pretty sure the port it uses to connect was changed from 80 to 591. When it runs in standalone mode I can connect to it but I am unable to actually access it's proprietary graphic network interface. It sends out UDP every few seconds or so and basically I was trying to search for some type of udp broadcast monitor and have tried using network tools such as netstat, port scanning, multicast, etc on all of the big three OS's because sometimes it seemed to finnicky what it wants to connect to. I've tried to let it connect back to my router again which it seems to do, but is then denied access and I think it may even have a trojan or somethng so I don't want it to that but if I have to to access it again I will.In standalone mode I've it usually trys to connect on 192...5 or 192...7 and I've tried to get through 591, 23, 80 etc. multiple times with no luck.
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Jan 16, 2012
I have the modem feeding a router that I turned dhcp off to use it as a switch, I then have the switch feeding a ubiquiti nanostation and a wireless router (to feed house 1). The other end of the nanostation is in house 2 (1000ft away) where I have it feeding into another wireless router to feed that home hard wired and wireless.Everything works but cannot get both to work at same time.
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Oct 23, 2011
We have two networks in our lan: 10.0.0.0/24 and 192.168.1.0/24. Actually the networks are separated. The 192.168.1.0/24 network contains some hosts that ip can not be changed. We want redesign the network and communicate with both networks without routers. I thougnt about changing the netmask for 192.168.1.0/24 in 192.168.1.0/22 (1022 hosts) and change IP's in the 10.0.0.0/24 network in 192.168.2.0/22.
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Dec 26, 2011
I was working as IT Support in an encoding company. I support over 500 desktop users. my problem is about in entire network because i always encounter hang network in my grave yard shift. Our network system set up have domain server, antivirus server, database server, 4 PC's use as backup servers and 3 unit of network attached storage and approximately 500 units of desktop use for production in encoding. I always experiencing network hanging then after all system will be freeze, so i suggest to shutdown all pc for usually in 5mins then turn on again. In an hour the problem is still exist again and again. I did all possible way to make the production smooth run for my whole shift but still after some hours it occurs again. I dont know what would be the possible reason why the network hangs and stuck up. The network attached storage did not reach the entire capacity, the antivirus server is still updated, the domain and database server are working properly even the PC's use as backup server. There is no internet connection we use in production, so i assure that no virus we encounter in all pc. Is it the cabling? or is it the switches?
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Feb 28, 2012
I have Dell machine with Win Xp3 loaded, on my local network (and other computers). I set NIC card "Link Speed & Duplex" to autosense & make direct connection to my modem and works ok.When I plug into the network router I get the 'Cable is unplugged' and no Internet connection.I can change the "Link Speed & Duplex" to 10Mbps/Full Duplex and get intermitten connection. Also when I copy a file from Mapped drive I get "Cannot copy xxx - The specified network name is no longer available".
1. the NIC software is recently updated PRO/100 Adapter NDIS 5.1 driver
2. Although Microsoft has suggested Symantec < ver 4 has had an endpoint problem, I have 10.1.6.6000.
3. TCP/IP Properties are on automatic like the other computers.
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Feb 29, 2012
Have a problem connecting my new IPcamera Elro C903IP so I can access it through the internet. Did the camera setup according to the manual. Local access (wifi network) works fine but access through internet remains impossible. IP of the camera is still 10.0.0.110 but I found out that for access trough the internet the IP would be like 192.168. etc but I can't change it properly.I have cable internet and a wifi router Netgear WNDR3700v2.Documentation that I found about port forwarding etc is not clear enough to me. I tried over and over but can't get it to work .
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May 21, 2012
We just had a TEW-72GR router fail and replaced it with a TEW-GR. Now I am unable to get to my domain (mydomain.net) from outside the network. Inside the network, all appears to be fine. I can enter that address and get to the site with no issues.We use SBS 2008 with windows 7 clients.All clients can get out to the web, we can send and receive emails, but I can not access the domain.
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Apr 5, 2013
giving unauthorized access and no internet access
Windows IP Configuration
Host Name . . . . . . . . . . . . : KHANBALOCH-PC
Primary Dns Suffix . . . . . . . :
[Code].....
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May 29, 2012
my computer, my network connections icon have a exclamation mark (!) and it say i don't have internet access,but luckily i have internet access but i can't remote my computer,
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Oct 14, 2012
How to play games network by use wireless TP-LINK I have 2 laptops and one Desktop I want to play games at home, but without the use of the Internet.
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Jan 21, 2011
My customer has 3 computer
1- Windows xp
2- Win7
3- Apple
4 new sony laptop.
Vaio would not connect using WEP 40-bit key. Logged into Airport Extreme router with Airport setup utility for Windows from Apple. Updated firmware from 5.1.1 to 5.7. Reset Encryption from WEP to WPA/WPA2 Personal.Connected Vaio on Wifi using WPA2. Removed ethernet cable and connection was good at 54MB/s.Completed Windows Update
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Jun 30, 2012
I have set up port forwarding for my WD Network HDD, which runs a Media Server (Twonky). Now, I have tested the ports and accessed it through the internet and it works fine, until... I click a link to open a folder and suddenly I get a "No such page" error thing. I have however identified this problem, it seems that when I go off the main page it re-routes to the original network address, not my IP forward address. For Example if my IP was 82.9.12.456 and the port was 800 i would go to "82.9.12.456:800" and it would load but once I navigate i go to "192.168.0.*:800/*****" and does not load the page. If i then copy and past my IP into the URL it works, but this is annoying.
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Jun 2, 2011
I have a Airtel Internet Broadband connection and I have a lan having around 10 workstations. I have another computer which I want to use as a server through which all the internet traffic will pass. The server has two lan cards(one on motherboard and other one is usb).I have connected broadband modem to lancard1(on motherboard) and have connected the lancard2(usb) to the lan switch.Now how to proceed further, so that internet service is available on all the workstations connected to the lan switch.
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Apr 3, 2012
I'm studying for a Cisco certification and I'm trying to wrap my head around the routing. I understand how routers work for the most part and how the get updates about networks and how many hops away they are, but I don't get what happens when a router doesn't know the path to a network.
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Mar 18, 2013
I have spent several days tearing my hair out trying to properly configure our small business switch (SG300-10p) for voice. The phones are a relatively new addition and will replace old POTS phones.Our network consists of a 1941 ISR router, the SG300-10P switch, a mac server (handing DHCP, DNS, AFP), 4 client desktops and 4 SGA525G2 IP phones. The router, server, desktops and phones all have their own connection to the switch and the second data ports on the back of the IP phones are not used. We do not have any unified comms devices for voice. Our VOIP solution is hosted by a local SIP provider, and each phone independently registers with the provider's SIP proxy over the internet.
Left almost to it’s own devices (or presumably flat, default settings on VLAN 1), this whole setup works just great. We can TFTP files, make and receive calls, and do all the usual XML stuff. Calls are crystal clear. Even the localisation and directory works. However, I’ve been told several times that to ensure good quality on VOIP calls during periods of busy traffic, I should set up some form of QoS. A Voice VLAN on the switch, I was told, is the best way to do this as it automagically gives priority to the whole voice VLAN over the normal data VLAN.
I have followed instructions in numerous manuals, articles and guides, and have managed to create the Voice VLAN, both manually and automatically (I can watch Smartport detect the phones and see the Auto Voice VLAN add the ports to the VLAN as I connect them). The trouble is, as soon as this happens, the phones lose connectivity with the rest of the network, including the DNS server and the router, and therefore the internet, causing them to lose registration with the SIP service.
I tried adding the server and router ports to the Voice VLAN and tweaking every possible combination of tagged, untagged, excluded, trunk, access, general and PVID settings I can think of (by the way, I have no idea what any of those mean). The switch is in Layer 2 mode, but adding the port connected to the router to all the VLANs does not result in internet connectivity to the phones. I have told the phones to tag frames with the VLAN ID and told them not to. I have tried upgrading firmware and I have rebooted the switch so many times I'm tired of those wretched little flashing lights.
Nothing seems to work. And so I am stuck with everything on VLAN 1. My most recent thought is that the 1941 needs to know about the Voice VLAN (I checked CDP and it knows about the switch), but I’m reluctant to start messing with the router config when this is our production network, at least without knowing what I'm doing. I don’t even know if QoS applies when a Voice VLAN is not set up and we're on VLAN 1, some articles say yes, others say no. And when it is set up right, how does that priority transfer to the router? I’ve looked in the router manual and config options and found something called 802.1Q, but I have no idea what it is, how it works or even if it applies to our situation. Can I forgo VLANs altogether and use QoS some other way, perhaps?I have googled enough to cobble together our setup in IOS up until now. Ideally, I would still like to be able to ssh or https into each device (as I do now) for management, and I’ve read about setting up a another VLAN for config, monitoring etc, but I guess that would mean routing between VLANs in Layer 3.
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Feb 13, 2012
Currently we have an Ava ya IP Office switch running on the same network as our PC clients. I would like to seperate the two network into 2 V LAN's.
We have a mixture of Catalyst 3750 switches and some older 3500 models.Where do I start? Should I leave the PC's and servers on the default V LAN and just move the IP handsets?
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Sep 28, 2011
partition the departmental IP network address block to create a staff and a student subnet. Each of these will be identified by its own network address and netmask. It is university policy that you must be economical with the IP addresses. That is, the subnets must be as small as possible, but they must be large enough to accommodate the maximum number of hosts you were given. Also, it is university policy that the respective gateway router to the outside world should always be given the highest possible host IP address in the subnet. The student subnet should have a higher IP network address than the staff subnet. The network must be able to support up to 60 machines on the staff subnet (not counting the router) and up to 120 machines on the student subnet (also not counting the router).
IP address/netmask
University network address127.158.128.0
University network mask255.255.192.0
University internet gateway IP address127.158.191.254
Department network mask255.255.254.0
Department router address127.158.129.254
Suppose that the network address of the departmental network is 127.158.128.0 (calculated by AND between Dep network mask and Dep router address)I know that 60 machines would use 6 bits for the staff subnet.the netmask of staff would be 255.255.255.192.how can I figure out the the IP network address of the staff subnet.I have worked out the range for the staff subnetwork.
127.158.128.0 - 127.158.128.63
127.158.128.1 = Gateway address
127.158.128.63 = Broadcast address
Now how can I calculate the IP network address of the staff subnet?
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Oct 14, 2012
As we know SNR (signal to noise ratio) is very important in communication special in wireless. So I wondering : How is SNR measured (by using practical method)?
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Feb 15, 2011
How to find bandwidth utlization and who consumed bandwidth lot.? Basically ,I would use speedtest.net for speedtest and will ask from ISP for bandwidth utilization.
Is there any way that to measure bandwidth utilization and who consumed lot based on IPaddress?
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Apr 17, 2013
I would like to measure amount of data I have uploaded and downloaded on the internet since last router reboot. I see there is a STATISTICS under STATUS, which lists the packets, but how big is a packet? And can I just take the values under Receive and Transmit (row called Internet) and multiply with packet size?
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Mar 3, 2013
I'm new to the Networking world and am trying to establish a base for my network. I'm running ASA 5510 8.4(4), how can I measrue throughput ? In the ASDM, there is a nice feature for CPU, and the command show CLI also provides good info about CPU, but how can I get the throughput on a port basis ?
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Jun 24, 2012
I have an XFS 8300 desktop having a TP-Link Model No. TL-WDN4800 dual band wireless adapter card. The box of the card states that the fastest wireless speed available is 450 Mbps. I am using Comcast cable as my internet service provider. Is it possible to measure how fast my wireless connection speed when downloading from the internet? If yes, how?
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