Port isolation between two SRW swiches connected through fiber?
Hi guys,
i have one SRW2024P connected through fiber to SRW2048. I would like to create isolated link between these two switches consisting of at least one isolated port at each switch. Can this SRWs do this?
Alternatively i need on the SRW2048 side few PoE ports so do you know any 16+ port PoE switch that can do this?
THX for answer.
Do you mean you want a port on each switch to be able to communicate with each other but not with any other ports on the switches ?
i.e PC host at 192.168.1.3 on port 2 on switch 1, to be able to ping a IP host at 192.18.1.2 on switch 2 port 3 ?
If this sort of functionality is required you want to create a new vlan to the switch. If it is not the case please explain in more detail what you want and ignore the following.
regards Dave
Om my srw2008P i would do the following, i guess your interface is almost identical to my switch GUI interface.
step 1 create a vlan, maybe vlan 2
[make sure you scroll down to the bottom of the page at each step and save changes]
step 2. alter alter port x to be a untagged member of vlan 2
step 3 modify the vlan interface setting on both switches to make the fiber uplink port a trunk in vlan 2.
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Sharing a shared network variable between two PC's connected to a network
Sharing a shared network variable between two PC's connected to a network
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Ok so what do I need to do to read a shared network variable sat on PC1 from PC2 on the network
Public Class Form1
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Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
TestVariable = New NetworkVariableSubscriber(Of Double)("\\192.168.58.139\Test\TestVariable")
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End ClassSorry lost all the formatting
Surely this shouldn’t be so difficult! I have a little
LabVIEW program running in the background of PC1. The exe’s task is to collect
and send OPC variables held on a SCADA system and convert them to shared
network variables (as I thought that they would be easy to share over a
network, easier than the nasty OPC and DCOM issues). I have PC2 which runs
measurement studio and I have created a nice test VB program which either
writes or reads the network variables which are on PC1. The PC1 collection
software is working perfectly and when I change the values on the SCADA system
I can see the network variable change on ‘NI Distributed System Manager’. I
When I look at ‘NI Distributed System Manager’ on PC2 I can’t see PC1 on the
list and when I use the basic measurement studio code below to read the network
variable it times out at the TestVariable.connect() line.
Ok so what do I need to do to read a shared network variable
sat on PC1 from PC2 on the network
Public Class Form1
Private
WithEvents TestVariable As NetworkVariableSubscriber(Of Double)
Private Sub Form1_Load(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles MyBase.Load
TestVariable = New NetworkVariableSubscriber(Of
Double)("\\192.168.58.139\Test\TestVariable")
TestVariable.Connect()
End Sub
Private Sub TestVariable_Data_Updated(ByVal sender As
System.Object, ByVal e As
NationalInstruments.NetworkVariable.DataUpdatedEventArgs(Of Double)) Handles
TestVariable.DataUpdated
TextBox1.Text = e.Data.GetValue
End Sub
End Class -
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Hi Everyone,
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This is my first ticket in the support community.
csVMs have nothing to do with it, as long as there's network communication between the servers.
As I said, there must be a service or application listening on that port for it to respond. For example, try this:
C:\> telnet
When the telnet prompt opens, type in:
open mail.messaging.microsoft.com 25
If it works, you should see this:
220 CH1EHSMHS035.bigfish.com Microsoft ESMTP MAIL Service ready at Thu, 7 Feb 2013 00:57:33 +0000
That means that Microsoft's mail servers are LISTENING on port 25 and it responded. And note, telnetting to port 25 is a non-default telnet port, because port 23 is the default telnet port. When you type in a space and then a port number, you're telling
the telnet client to use that port.
That is the SAME THING if some sort of application or service is listening on port 8444 on that other server you're trying to telnet to. If there is no app or service listening, it will just time out.
And no, installing the TELNET service on that sercver will NOT answer to any port other than 23. The telnet service by default, uses TCP 23, unless you specify otherwise.
So once again, what service or app on that server is supposed to be listening on 8444?
Ace Fekay
MVP, MCT, MCITP/EA, MCTS Windows 2008/R2 & Exchange 2007, Exchange 2010 EA, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services
Technical Blogs & Videos: http://www.delawarecountycomputerconsulting.com/
This post is provided AS-IS with no warranties or guarantees and confers no rights. -
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Hey all,
I have two 6509s that I'm trying to configure an 8 Gig trunk/port channel. I have an 8 port fiber module in slot 3 on both switches. When I use the following command: "set port channel 3/1-8" on it seems to take the command, but if I do "show port channel" it shows two groups:
3/1-4
3/5-8
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ArmandoJames A. Weston wrote:
Whenever you use WDS, your network connection (or potential throughput) is cut roughly in half for each WDS network leg.
James, it is very curious what you said...
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I need to test if communication is open on port 8444 between two servers.
I installed telnet client on a Server 2008 R2 server and telnet server on a Server 2008 SP2 server. I also manually started the Telnet service that was set to disabled on the SP2 server. I disabled the Windows firewall on both servers. They
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As I said, there must be a service or application listening on that port for it to respond. For example, try this:
C:\> telnet
When the telnet prompt opens, type in:
open mail.messaging.microsoft.com 25
If it works, you should see this:
220 CH1EHSMHS035.bigfish.com Microsoft ESMTP MAIL Service ready at Thu, 7 Feb 2013 00:57:33 +0000
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the telnet client to use that port.
That is the SAME THING if some sort of application or service is listening on port 8444 on that other server you're trying to telnet to. If there is no app or service listening, it will just time out.
And no, installing the TELNET service on that sercver will NOT answer to any port other than 23. The telnet service by default, uses TCP 23, unless you specify otherwise.
So once again, what service or app on that server is supposed to be listening on 8444?
Ace Fekay
MVP, MCT, MCITP/EA, MCTS Windows 2008/R2 & Exchange 2007, Exchange 2010 EA, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services
Technical Blogs & Videos: http://www.delawarecountycomputerconsulting.com/
This post is provided AS-IS with no warranties or guarantees and confers no rights. -
No sync between two computers since last update
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Since the latest update this no longer works. Instead, each time mail starts on the machine onto which I copied, it complains that something is corrupt and that it has to update all the indices. (I have >100,000 emails; therefore, this is slightly annoying.)
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You can get some tips (and warnings) about storing the catalog on a network drive here:
http://www.johnrellis.com/psedbtool/photoshop-elements-faq.htm#_Storing_the_catalog
To answer your immediate concern, you basically want to have one and only one copy of the catalog somewhere that's accessed by both computers. That catalog should be listing photos that are stored in one and only one "master" image location. Then you can use SyncToy to keep the images in sync to that master image location, and use Organizer to update its thumbnails whenever the original images are changed. N.B.: the Organizer's catalog does not support multiple concurrent access.
Ken
P.S., I've never used the sync to photoshop.com, so someone else will have to comment about that.
Message was edited by: photodrawken to add postscript. -
my objective is to make a connection between two wireless sensor networks....i am using two nodes and one gateway for each wireless sensor network.....what is the procedure for connecting these two wireless sensor networks of different groups
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Hi,
I have two 7200's connected to a 2950 (FE 22 + FE 24 - Both configured as trunks).
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no snmp trap link-status
7200-B
interface FastEthernet0/0.23
encapsulation dot1Q 23
ip address 192.168.1.2 255.255.255.252
no snmp trap link-status
2950:
interface FastEthernet0/22
switchport mode trunk
no ip address
duplex full
speed 100
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switchport mode trunk
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I want to connect 7200-B to 7200-A, and have dot1q Ints on both routers(As /30's) that can communicate (They will be used on 7200-B as Internet gateways for VRF's (With IP Nat enabled)....I was hoping that by having 7200-B connected to 2950 FE22, and configuring that port as a trunk also, that the dot1q ints on both routers could talk.
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Hello.
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Does AirPrint work?
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The USB ports on my 30" Cinema HD display appear to not work. The monitor has not been used for almost a year, when I upgraded to a new Mac Book Pro and the 27" retina display. Now I need to move the computer back and forth between two locations using the two displays. The need for operating USB ports is essential. Any ideas. The display appears entirely normal. Am running OS X 10.9.
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See my comment here;
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