Switches / Hubs

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A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.

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Hi experts.

Trying to find out what could be the best solution for this setup.
SonicWall TZ300
D-Link DGS-1210-28P
Phone Polycom VVX300

We will be implementing VoIP in our offices. Actually, …

621 views
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How will the traffic flow if I don't have STP enabled. Let say my switch has 3 ports and all 3 ports can lead to the destination. Which port will the traffic take? Thx

921 views

I am going to replace our Cisco catalyst 2960 48 port poe switches. I am considering going with the Cisco series SG300-52MP. I see that this model uses primarily the GUI. Am i still able to use the CL…

838 views

Hi People,

Can anyone please let me know what;s the example of the Read-only SNMP string for network appliance  so that I can copy paste that into all of my Router, Switch, Printer and any other de…

735 views

I know that I can configure switches on IOU , however I am not sure if there is a way to configure stack switches or cisco VSS ?

Thank you

629 views

I want to 'go back to' not haveing to enter a username AND password when tellnetting  to a switch.

The router had -

username admin privilege 15 secret 5 $1$gFfMiKHEX71n48LSXw1L8k
username manso…

825 views

I need to test EIGRP and I see that my license has ipservices eval for another 8 weeks  I have a Cat 3750 switch and it is currently running on ipbase. How do I switch to ipservices? Will it be downti…

1031 views

Hi all,

never worked with VLAN and this is what I want to achieve:

Netgear 2925 VLAN router
Netgear GS108Tv2 VLAN switch

I have 4 LAN ports on the router and 8 LAN ports on the switch.

I …

1148 views

How would I configure an asr920-24tz-m to essentially have the same function as an l3 switch with an l3 svi and multiple ports to be on that vlan untagged.

215 views

I've enabled private VLAN edges on our switches. Now, a user needs RDP access to his PC from another workstation. He is a member of the Remote Admin group on his PC. How do I configure the port to all…

949 views
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I need to create an 802.1Q trunk from 3750 switch to Meraki220-24. Just vlan 1 data and vlan 2 voice. I want ports on the MS220 have a voice vlan 2. Where do I set that? Thank you.

348 views

Any Cisco Expert to explain the difference between Cisco MultiChassis Etherchannel and Virtual Switch Link ?

Thank you

637 views

I am trying to find a way to remotely access the L3 switches  to slowly migrate my ring connections from L2 to L3. So I posted a thread (L2 to EIGRP slow migration?) sometimes ago and I thought that t…

1428 views

I posted a simiular question before but now I have model numbers. How should I stack my 3x 3650's? Is this setup OK ? This will be going to another stack on a different floor. Should I configure an IP…

2016 views

can i boundle gig ports with fiber ports to etherchannel?

514 views

Can anyone help with the below questions?

- When stacking switches, does every individual switch needs it's own IP? If not, what will happen when the master fail and and the other switches have no …

227 views

I have 2 Cisco 1830 AP deployed. Both are having Cisco Mobility Express software loaded. Secondary AP is in CAPWAP mode and that's fine. The master AP is working fine for 1 to 2 days (solid green) and…

728 views

I had just finished configuring a switch today,  but by mistake i put the domain name incorrect (i.e. ip domain-name 100.test.local).  Then i generated the ssh rsa certificate with this incorrect doma…

526 views

Hi Guys,

Hoping someone can point me in the right direction.

I'm trying to set up some acccess controlled vlans on a 3560 cisco switch.  My requirements are as follows:

Vlan1 (default) is whe…

336 views
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I have an EIGRP Routers in Full Mesh as shown below. I would like to know what is the down side about having Full Mesh. For instance:
 if it can create a Loop
if one router or interface Fails, how t…

237 views

I have a network of 6 nodes connected via fiber. It is currently a layer2 network. The core switch is doing intervlan routing. To access the Internet, all sites have to go through the core before acce…

2764 views

How come you don't see any switches beyond 48-ports before hitting what's called the "High Density" models which cost a ton? Example, my environment would benefit from 72-port switch, but I don't see …

827 views

Is there a command to leverage information on what user accounts logged into Cisco switches via SSH which will also determine the date and time of the access.

433 views

Hey Guys,

I have two switches & a server

Switch A (Native VLAN 1)
Switch B (VLAN 30)
Server 1 (VLAN 30)

I want to create a trunk port on Gi0/3 on Switch A to a Trunk port  on Gi1/0/17

628 views

Hi,
As I have an existing 6500 which needs to migrate the existing Sup720 to a new sup2t supverisor engine on the same chassis running VSS; I was wondering if there may be any suggested/recommended a…

540 views
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