a device that bridges network segments, operating at the OSI link layer level.

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Is it possible to monitor all 24 switch ports on a span port? (for snort / NIDS monitoring)

This isn't possible on the switch we have now (you can monitor at most 4 ports in full duplex, or 8 ports in half-duplex). I'm wondering if there is hardware out there that allows you to monitor all ...
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0answers
6 views

Virtual Switch Stack connections to Edge Network

I have a pair of Cisco SG500 switches stacked together as a part of my collapsed core design. I would like to connect this stack to the edge network which is comprised of two Dell Firewall/SonicWall ...
2
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2answers
44 views

Is a switch is an iSCSI “mode” required for iSCSI targets?

If I have a switch, nothing special set up, just regular traffic, no jumbo frames, no special iSCSI set up, can I still have iSCSI traffic, say from a Windows machine using the iSCSI initiator and a ...
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vote
1answer
11 views

Manage Windows Server 2012 and trunk the Hyper-V VM (same physical NIC)

I'm trying to use Hyper-V to deploy a pfSENSE box inside of it. But, the scenario is: 3 VLANs VID: 1000 VID: 2000 VID: 3000 On a physical switch port, I've tagged the Server physical port with ...
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0answers
29 views

Network layout advice needed

I have been doing some research, I keep reading about source guard on Cisco for segregating subnets and only allowing certain ports access to an IP Address range. However, I don't use Cisco switches, ...
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1answer
57 views

Networking newbie [closed]

I have been working in a call center as an IT assistant for a while. I have almost no networking experience, but suddenly I've become their entire IT department. We have around 100 employees, and I ...
2
votes
3answers
243 views

How to recover from switch failure? [closed]

Suppose there is only one switch within a system and it is connected to a bunch of machines to form a network. If this switch goes down, the entire network goes down. Chances of this happening are ...
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1answer
14 views

HP 2530: multiple management IP Addresses possible?

I have two HP 2530 switches in our hosting center. Because of some VPN problems between our office and the HC, i need to change their management IP Addresses to a different IP network. Currently they ...
0
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1answer
43 views

Forwarding IPs to Switch for NAT

I have a Question. We actually have a Cisco 1812 Router and we're Switching to an ASA 5512-X. The Problem is, the ASA 5512-X only has 6 Ports. The 1812, had 8. All in use. We need to translate 3 ...
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votes
1answer
19 views

Wifi Router Netgear DG834N and switch Netgear GS108GE ProSafe Switch don't talk to each other [closed]

I own the hardware described in the title, a wifi router and a switch. Wifi Router and switch and connected using a cable. From a laptop I can connect to wifi network just fine and browse the ...
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2answers
41 views

Live Migration - Switch Infrastructure

We will be deploying into an environment intended for maximum resilience/redundancy and the capability for rapid scalability. Context This environment is: 1 x NAS server with FreeNAS RAID 2 x ...
2
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0answers
15 views

Cisco Switch Routing performance monitoring

It is quite a question for me: I have Cisco Catalyst 2960S switch which is nice hardware even despite its age and EOL. I'd like to set it as small router between several networks within a remote ...
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0answers
25 views

Problems with Switch DGS-3420-26SC

I have a new SWITCH DGS-3420-26SC. Look at situation: On the first SWITCH Dlink DGS-3100-24TG, i have three VLANS: VID 99,132,100 99 this is our SERVICE VLAN; 100 this is VLAN of the neighbours ...
14
votes
2answers
1k views

Virtualization - Ten 1Gbps links or one 10Gbps link? (Performance)

I have a machine that has several VM's (5) and 3 physical networking cards (with each 2 ports), with a total of six 1Gbps ethernet ports. I have a SPF-capable switch, having a total of 48Gbps ...
0
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0answers
32 views

Difference between VPI and VCI in ATM

I don't really understand the difference, neither the necessity of including two fields (VCI and VPI) in asynchronous transfer mode. As far as I understand the main difference between a virtual path ...
1
vote
1answer
33 views

DHCP Server Port-Based Address Allocation on Cisco switch 2960-x

I am trying to configure DHCP Server on a Cisco 2960-X switch to achieve port-based address allocation. I would like the IP address assigned to any device connected to that port to be the same every ...
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0answers
14 views

Limiting internet subscriber's bandwidth on L2 vs L3

From my perspective, I see at least three ways of doing that: Limiting CIR/PIR per port in distribution: switches, GPON OLTs (L2) Limiting at router with simple HTB/PCQ queues (L3) Combination of ...
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1answer
34 views

Replace client switches with Netgear to match core or instead mix/match Cisco?

We are looking for how we can have a more reliable, simpler network. How can we keep out administrative burden low, and work smarter not harder when it comes to our infrastructure? Background: We ...
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0answers
16 views

Zyxel GS2210 errors on single port connected to printer

We have a Zyxel GS2210 Switch. One of the ports is connected to a HP Officejet Pro 8620 Printer. The webgui of the switch has a column called "errors" with a counter for every single port. Since there ...
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1answer
71 views

Stacking Cables on Cisco 3750G Switch

I stacked two 3750G Cisco switches a few weeks ago, all go. But, yesterday I installed a 2nd stacking cable as well for full optimization. However, it is not registering it seems. Cisco3750#sh switch ...
0
votes
1answer
23 views

Cisco SG220 Web Interface stops responding. Is there a way to reload it though the console?

I have a Cisco SG220 and the web interface stops responding and is no longer accessible after some days of usage. This is a fairly new equipment and every time it happens the switch continues to ...
0
votes
1answer
18 views

PowerConnect 2216 slow with 2 ports connected to router

I have a Dell PowerConnect 2216 switch. When I plug one cable connected to LAN port #1 of my router it works fine: _____________________________________________ | Router | PC | PC | PC | PC | PC | ...
3
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0answers
43 views

Inter-connecting 2 Switches on separate racks

I have 2 Dell N4032 switches installed on separate server racks. They are inter-connected on Port 23 and 24. Servers in Rack1 can ping Switch1, Servers in Rack2 can ping Switch2. However, they cannot ...
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0answers
51 views

Dumb Switch to Smart Switch - Ports going up and down, what's up?

I just switched from a dumb switch 10/100 to a smart switch HP 1920-24G-PoE, and noticing ports going up and down randomly. I can't see any obvious reasons why this is happening so am curious if ...
0
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1answer
53 views

Cisco SG200-26 - Can't change management VLAN

I've purchased a new SG200-26 switch and upgraded it to the newest possible version: I configured multiple VLANs - nothing special - however if I try now to change the management VLAN (as I did ...
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1answer
35 views

I FUBAR'd the IP, subnet, and VLAN settings. Now how to access managed switch?

I have a Dell powerconnect 2748. I think I have done messed it up though when setting it up because so far I have not been able to access the webconfig of the switch after I changed some settings I ...
0
votes
2answers
81 views

Switch in front of router - multiple public IPs

Network Gurus, This seems logical and doable but want to have an advice from experts. We have /26 on single drop in our datacenter. Some of our application servers (A) need public IP addresses and ...
1
vote
1answer
17 views

limited connectivity at end nodes

I am running a campus wide network of a University and experienced a very unusual scenario for my network. The problem is two folds and therefore i would like to explain that separately after briefly ...
0
votes
1answer
182 views

Can a Cisco SG300 Layer 3 Switch act as a NAT router?

I have following Network Setup: Basic Home Wifi Router ------------------------------------------------ | Cisco 2500 Series Wireless ...
0
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1answer
24 views

Switches Types: core switches vs top of rack switches vs end of row switches vs rack switches

Note: I'm a noob in this field! I'm searching to find out the difference between the different types of switches: core switches top of rack switches end of row switches rack switches Are they ...
1
vote
1answer
35 views

Switch to Switch Communication with Static Routing

Before I ask any questions, here's a bit of an overview: Simple example of my network topology What I have in the diagram is two networks segregated by a point-to-point LOS system (the "towers") and ...
0
votes
1answer
67 views

How can I connect my switch to my fibre connection?

Question We just got our ADSL line replaced with a Fibre optic line. Part of the Fibre-install included a Fibre panel (terminator?) and a Huawei switch. I'm not sure how to connect our existing ...
0
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1answer
20 views

Rapid VLAN assigment on huawei quidway s2300 switches

I'm newbie network enginner wondering is there a way to assign same vlan to multiple ports rapidly (not separately)? Somehow like this: "int eth 0/0/1 0/0/9 0/0/15 default vlan 101"
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1answer
38 views

Link Aggregation with 3 switches

I am new in networking. Sorry for my ignorance. I have three switches. Switch 1 has 4 ports. Two of them connected to switch 2. And the other two ports are connected to switch 3. All these four ...
0
votes
1answer
48 views

Meraki Switch Uplink

Bare with me as I am not the greatest at networking and vlans but i can usually figure it out if i can find info. I have a new switch from Cisco Meraki (MS220-8P) and i am trying to configure a Dual ...
0
votes
0answers
30 views

Cisco 2960-X switch converting unicast video stream to multicast video stream

Can we convert unicast video stream to multicast video stream just using Cisco 2960-X switch ? Note: I tried to route incoming stream to 235.6.6.6 as it is my multicast ip adress, I used. In order ...
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0answers
27 views

Why can't I connect to this switch ther the comm port?

I have an enterasys C2G124-48 switch that I need to set up some port mirroring on to troubleshoot some Voip issues. However I am having issues connecting to the switch through putty. I am following ...
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0answers
21 views

Cisco 2960G switch console username. Cannot login

I have a Cisco 2960G switch and I have configured a line console password on it. But I have not set a username and when I attach a cable to the console port I am asked for a username, but I cannot ...
2
votes
0answers
47 views

Multi vlan internet access via Watchguard

i'm pretty new to network and routing so i would appreciate some tips on this. I have a firewall(watchguard x1250e), connecting to a switch(Nortel Baystack 5510) with multiple vlans for internet ...
0
votes
1answer
62 views

How to find out from which switch is coming the exact MAC address

I am working on a big company with 2 Backbone routers (ARS9K) and 200+ switches (Cisco, D-link, Tp-Link and etc.). Lets say that I know an exact MAC address of a device, but I do not know to which of ...
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votes
2answers
52 views

Setting up a Home (LAN) Network [closed]

I am trying to setup a basic home network to connect 5 computers. I do not need any internet connection. Ofcourse IP addresses should be either automatically assigned or i should assign them ...
1
vote
1answer
39 views

How to implement lacp cross switches

I have a question of lacp on Cisco 2960x. Are they in the same group "1" or not? isolated? Lab setting: Server-4pt (linux) -> sw1 channel-group "1" Gi0/1-2 Server-4pt ...
0
votes
0answers
68 views

How to route traffic between tagged and untagged traffic on Juniper EX3300 switch?

I have 3 different subnets as below subnet1: 11.11.11.0/24 tagged with vid 1111 subnet2: 22.22.22.0/24 untagged subnet3: 33.33.33.0/24 tagged with vid 3333 now machines in subnet2 want to ...
0
votes
1answer
41 views

Server 2008 - 1st NIC's traffic stops when 2nd NIC is plugged in

I have a file server running Windows Server 2008 R2 with 2 NICs in the back. These are their configurations: Connection #1 Local Area Connection 10.1.37.6 255.255.255.0 [No Gateway] Connection #2 ...
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0answers
69 views

CISCO port tracing by LED light blinking

I work as IT technician,part of my job I have to trace the UTP cable to the switch port, I used for the a program called WinCDP by connecting to my laptop Ethernet port and it will tell me where is ...
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votes
1answer
47 views

how to verify if target host is linux/solaris or switch/router/else [closed]

I have hosts file in my master linux machine and this host file include more then 1000 IP address that defined many components as Linux and solaris machine and switches and routers and EMC port and so ...
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votes
2answers
287 views

Do I need a managed switch for my home network? [closed]

The benefit to home routers is that all you need to do is plug them in, and they pretty much work out of the box, allowing multiple computers to use a single internet connection. Let's say I wanted ...
1
vote
1answer
137 views

Multiple PPPoE connections through a LAN switch

The question is simple. I have multiple DSL connections. Suppose that I have a server with a single network card. Would be any problems to use a LAN switch to connect DSL modems to the server? How ...
1
vote
0answers
60 views

Connecting 2 single switches to a stack

I have a core switch made with 2 stacked Cisco SG500XG-8F8T switches. Now I have to connect 2 3Com Baseline Switch 2920-SFP Plus to extend my gigabit network, but they are not stacked. So I connected ...
0
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0answers
37 views

interface not showing on port-channel (dell S5000 switch)

Our trunk went down due to a faulty cable, but when we had it replaced, the interfaces (speficially TenG 0/4 and /5) are not being shown on the port channel group even if they are physically up: Our ...