-5
votes
0answers
30 views

Broadcast limiting in the switch [on hold]

How a broadcast limiting in switch works. will it limit bcast only or multicast also? Any idea?
-1
votes
3answers
56 views

3x networks, hardware in 2 locations, 1 connection to join them

Sorry it was hard to think of a title for this, so hopefully I can explain my situation. We have hardware (unix servers) on 3 different network subnets. For example: 10.44.1.0 10.44.2.0 10.44.3.0 ...
3
votes
2answers
225 views

What does 'Si' mean with respect to network switches?

I am seeing references to Multilayer Switches with Si as in the network symbol below. What does the 'with Si' qualifier mean?
5
votes
3answers
273 views

Gbit uplink vs Regular switch port

I have a 10/100/1000 24-port + 2 mini-GBIC ports switch which I have to link to other switches. Unfortunately, on the other switch all the mini-GBIC slots are taken up, so all I can do is link them ...
-1
votes
0answers
33 views

Network Load Balancing (NLB), how to assign a public IP?

I have two web servers that I am trying to configure in an NLB. I have so far managed to get the NLB working on a private network range but I now need to expose this on a public IP. My servers ...
-1
votes
1answer
54 views

Designing a secure network layout

Over the last few years I've accumulated a lot of hardware that all currently exists on a flat network. There are a number of devices: my desktop, laptop, and computers of the rest of the people I ...
0
votes
0answers
38 views

Access switch on the LAN from a WLAN connection Sonicwall TZ205

I have a setup like the following Modem >>> Sonicwall TZ205 >>>> Linksys 8 port smart POE switch >>>> Linksys LRT224 When I am on the LAN through a wired connection ...
0
votes
1answer
45 views

Trunk port needs to be tagged or untagged?

I linking 2 different brand of switches (Linksys & Zyxel) through SPF gigabit connector. g4 1G-Combo-F Full 1000 Enabled Off Up Disabled Off It says the link is up but ...
1
vote
1answer
49 views

Intermittent switch failure and data flooding, hardware capacity?

We are using a switch (ZIO-SW500) connected to the building main network and we suffers from intermittent network halt. Normally the network works well. But, sometimes traffic designated to other ...
4
votes
2answers
269 views

HP ProCurve 2920 switch stack topology for TWO switches? Ring vs. Chain vs. trunk?

I have a customer whose two HP ProCurve 2910al PoE switches have failed. This was backing a VoIP deployment for a small call center. They are interested in replacement PoE switches, but there's a ...
1
vote
1answer
63 views

Config Cisco 2960-X 3 stack switches [closed]

I'm am in the process of setting up 3 x Cisco 2960-X switches in a stack. I've configured Cisco switches before, but this is the first time I will be configuring them as a stack. Will I only have to ...
1
vote
0answers
74 views

Windows mounted network drives slow after upgrading switch

On our small business network our old 10/100 consumer grade switch gave up the ghost, and we replaced it with a proper business-grade gigabyte switch. After wiring it in our Linux and Mac users ...
2
votes
4answers
79 views

Is there any possible way in which unicast packet from one machine sent to two machines?

Is there any possible way in which a unicast packet from one machine sent to two machines? How does it occur. Anybody faced such condition occasionally?
0
votes
2answers
55 views

Why arp cache is stored in both machine and switch? [closed]

I heard that arp cache is stored in both machine and switch... Is that true. When packet need to transmit from machine 'A' to an machine 'B' means we can simply send the packet to switch. As ...
2
votes
2answers
128 views

Is it possible to configure a private VLAN on a switch and still access each server via a public IP?

I'm sure this is a very basic/common networking problem. I have 1 web server and 2 database servers that are co-located in a data-center. I have been issued 10 public IP addresses and I have a 10 port ...
2
votes
2answers
336 views

Does 5-4-3 rule apply to stackable managed switches?

We have 7 Dlink DGS-3120 48 ports Gig switches stacking together and all ports are being used. Each switch represents a single segment of our working area. it is working well without any issue. My ...
0
votes
0answers
38 views

ZyXel ES-2024 - Mirrored port showing duplicated traffic

I have a ZyXel ES-2024 PWD switch. I would like a computer plugged into port 26 to see all traffic that passes through port 2, both inbound and outbound. I have configured port mirroring for the ...
-2
votes
1answer
147 views

How to access device on switch from another computer? [closed]

I have several computers all connected to the same switch. Some computers are running RHEL, one is running CentOS. The CentOS machine is connected with NIC 2 to switch 2, and NIC 1 to switch 1. The ...
0
votes
0answers
52 views

Can a 100Mbit switch throttle the internet connection?

We have a rather peculiar problem with internet speed in our office. Recently, we switched to a fiber-optic connection. We're supposed to have a 100Mbit connection (up and down). Here's how it has ...
0
votes
1answer
51 views

Connect Multiple Networks Wirelessly [closed]

I have a home network using a router to connect computers both wirelessly and with network cables. I also have another separate network about 10m away from my home network that is networked via ...
0
votes
0answers
36 views

What should I consider when I plan a meaningful monitoring for SNMP Switch (SG200-50)

I am currently planning the monitoring of a switch and would like to consider beforehand what I need to be closely monitored in order to obtain errors and warnings are also useful. I have a Cisco ...
0
votes
0answers
62 views

Connecting internet uplink to switch or firewall

While I am using Cisco kit, this isn't really Cisco related, more general network design. In the past I have connected internet connections straight in to a layer 3 core switch, 3750X's, 6509's and ...
2
votes
2answers
144 views

Best way to hide ILO/IPMI management port and not using public IPs

I have 5 servers, each has one internet port and one ipmi port, so I am using 10 external IPs. Its a bit problem with a provider to get more IPs and also I want to hide IPMI ports since sometimes ...
-1
votes
1answer
36 views

Router connect same 2 ports? [closed]

What it will happen if 'accidentally' i will connect 2 ports with the same utp cable? I'm asking here since i don't find anyware such a stupid and silly question but i'm curios about it, the router ...
13
votes
2answers
1k views

How do I ground a network switch?

I read in a lot of places that it's necessary to ground networking equipment. In a small SOHO environment where there are, say, 4-5 systems and each system is grounded, is it also necessary to ground ...
0
votes
0answers
41 views

For a typical broadband ISP, are nodes on the same subnet routed together or are they bridged?

For a typical broadband ISP, are nodes on the same subnet routed together or are they bridged? In other words, what kind of path will a packet take when going from one node on a subnet to another for ...
0
votes
1answer
24 views

Is there a device with multi auxiliary (AUX) ports to configure multiple devices

Level: Beginner Sorry for the confusing title. I shall try to explain my best to explain my question. Question: Is there a networking device named X that has multiple AUX ports so that I can connect ...
0
votes
5answers
134 views

Giving an IP address outside the network to the router to safely make it a switch?

In our office, all machines use IP address 192.168.0.x with subnet mask 255.255.255.0, the network setup is as below: We only had routerA before. But since its wireless signal is too weak (much ...
-3
votes
1answer
40 views

Router Switch hanged down [closed]

I have a switch placed in department and connected through Media Converter which is directly connected through optical fiber cable from 3com Switch. Now the issue is Some times suddenly the Endpoint ...
-1
votes
1answer
2k views

How to set up 2 separate VLANs on one switch (HP v1910-48G switch)

I need some advice on how to set up 2 VLANs (on one switch, I have HP v1910-48G switch) that separate broadcast domain and also share a single internet connection. The two Vlans must remain separate, ...
0
votes
1answer
53 views

Can a home router separate private network? [closed]

I've just come across this network diagram: http://computer.howstuffworks.com/router1.htm And I am thinking if it can be done with a typical home router. Normally for home router, when we plug a ...
1
vote
1answer
208 views

LAN Redundancy - NIC, Cables + Switch?

I'm trying to move to a HA solution and would like to understand what hardware is required to have redundancy in the NICs, switch and cables. The diagrams below show how I envisage a non-redundant ...
1
vote
0answers
89 views

Inter-server connectivity loss after applying cisco switch configurations

I have 2 Redhat servers in cluster. The eth0/eth2 ports on both servers are in bond0(which is assigned IP). The eth0 and eth2 from server1 are physically connected to giE0/3 on switch1 and 2 ...
9
votes
1answer
395 views

Proper method for connecting multiple non-stackable network switches?

I deal with many clients in warehousing and industrial applications who have IT staff or local consultants. Many of these sites are still using a 10/100 Megabit switching backbone... I've managed to ...
12
votes
3answers
732 views

Improvements for small business network?

My question is more-or-less a newer version of this 3 year old question: Small Business Network Switches/General network configuration Summary Everything is Gigabit and we don't have any real ...
1
vote
2answers
136 views

Is VLAN separation required for multiple networks?

I am setting up a Dell 6248 combining separate switches used previously. I am planning the following architecture: VLAN 1 - External traffic (each server's public interface connects to this) VLAN 2 ...
0
votes
1answer
31 views

HP equivalent of the the FindIT Utility

I think I've lost the configuration on two of my HP-Procurve 1810-24G. I can't connect with either the previously assigned static or the or the default factory ip. Are there any utilities equivalent ...
0
votes
1answer
457 views

How to connect two HP 1910-48G switches

My company have two HP 1910-48G Switches. One of them is on my flat and the other one is two flat above. I'm not a network guy but my manager wants me to connect these switches and he doesn't want to ...
3
votes
1answer
96 views

Finding a network switches IP

These are not Cisco switches or switches with serial cables. They are also on a live 24/7 business network. I was tasked with doing some network work but I don't know the switches IP address and ...
0
votes
0answers
73 views

dlink arp spoofing prevention

Can someone can help me understanding arp spoofing prevention on Dlink dgs-3100. I'd like to protect my gateway MAC/IP from spoofing so I have tried to add a rule "IP: 192.168.1.1 MAC: ...
0
votes
1answer
53 views

Only one server behind a switch cannot access the internet and vice versa

I have multiple servers deployed behind a single switch. All the servers have their own public IP addresses. Suddenly one of them (say A) cannot be accessed from the outside by any means, e.g. HTTP, ...
0
votes
1answer
81 views

can network Redundancy possible with help of Layer 2 switches & dual NIC in one PC & program in java?

I am Trying to achieve Network Redundancy in network which have 1 server & lots of node which use 1 switch for each. As per various forums for achieve Redundancy in network i should use Layer 3 ...
-3
votes
3answers
67 views

can power on ethernet for one poe swtich to another layer 2/3 switch?

My question is 1. can we use 1 poe switch as power supply for another layer 2/3 switch? 2. If question 1's answer is yes then What should be maximum distance between those? As per my reading in ...
1
vote
2answers
122 views

How to add multiple IPv4 Subnets to a VLAN using Allied Telesyn at9924 Switch?

I cannot figure out adding more than one IPv4 subnets on a VLAN using Allied Telesyn at9924 Switch I've added the first IP using this command: add ip int=vlan15 ip=xxx.243.117.193 ...
-2
votes
1answer
24 views

Uninstalled server 2008 now router won't handle DHCP

My set up is this. server behind router, router has a server and switch connected to it with multiple computers. router used to serve DHCP and DNS, a couple of days ago installed AD, DNS and DHCP on ...
0
votes
1answer
40 views

Move single ip address accross network or virtual machines

I'm currently trying to set up a small development cluster inside our enterprise network. We have a system to provision "disposable" virtual machines and move them to any of our 12 servers if needed. ...
3
votes
1answer
248 views

HP Procurve 2512/2524 protected port, source port filter or similar?

HP Procurve switches usually have a setting so that the ports are told which other ports they can communicate with. An easy setup using this is to only allow communication with the uplink, so that no ...
0
votes
1answer
55 views

Which would be the best switch for a cloud cluster? [closed]

I am about to set up a private cloud using Eucalyputs on CentOS, and I am confused about buying a network switch. Right now there will be 4 node controllers on my cloud, but in the near future I am ...
0
votes
0answers
158 views

Computers Suddenly Lost Connection to SBS 2008 Server

I am having an issue that I could not explain myself in the entire of my career. The issue is when the entire computers just randomly and suddenly lost connection to the server, running Windows Server ...
0
votes
0answers
229 views

LACP on HP Procurve 2848

We're currently running 2 x Uplinks to our ISP, in a LACP Trunk, and although the inbound is being balance properly, the outbound is only going through 1 link. I've been told that this HP Switch ...