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Networking Hardware-Other





Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.

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Dear Experts, seems like our Router was restarted unexpectedly, when we checked the log, it shows:

Sep 26 03:49:53.005: %SYS-5-RESTART: System restarted --
Sep 26 03:49:53.005: %SNMP-5-COLDSTART: SNMP agent on host R1 is undergoing a cold start

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Can you please advise? Many thanks
Important Lessons on Recovering from Petya
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Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

I am new to using Verizon FIOS. It is not available in my area, but a client of mine built a new house where it is available, and advised that they had the network wiring under control with a local installer.

Now the house has about 15 STB wall ports -  each with an IP address on the Verizon router.

My question is: Can these be used as the ethernet cabling (when not used for a set top box)... or are they strictly for set top boxes?

Thanks for any info. Not having seen FIOS before I am confused.

2x 2920 Core switches with 2x HP Edge switches connecting

If you have a stacked pair of switches (so 2x HP Procurve 2920 connected in a ring configuration with stacking cables) - then how should trunks be configured (etherchannels for the non HP switch aware) to access switches?

If I go to the Menu CLI and it lists the ports of both switches, I assume that if I setup a trunk on ports 23 and 24 on switch 1 then I need to setup the same on switch 2.  

- Do I set these up as two trunks with 2 ports from each switch contributing?  (ie - Trunk 1 with ports from Switch 1 ports 21,22 and Switch 2 ports 21,22, Trunk 2 with ports from Switch 1 ports 23,24 and Trunk 2 with ports from Switch 2 ports 23,24
- Or do I set them up as four trunks? (Ie Trunk 1 with ports from Switch 1 ports 21,22, Trunk 2 with ports from Switch 1 ports 23,24, Trunk 3 with ports from Switch 2 ports 21,22, Trunk 4 with ports from Switch 2 ports 23,24)

Hopefully makes sense  - I have tested it with option 1 above and fails over without issue but just wanted to confirm the best practice

if you replicate data between your primary SAN to a DR SAN, what assurances and checks need to be performed to verify the health/reliability of the link between the sites and the replication process? What risks are there with such a setup, and what best practices/monitoring need to be in place to minimise those risks? what evidence could be requested to verify these risks are well managed with best practices?
Just had my solarwinds monitoring alarm go off on our Cisco core switch
As you can see in my attachment. Pinging to our core is hitting peaks and valleys, all other devices on that subnet and are server vlan our having high ping times.

How would I further diagnois what is causing the issue? I'm sure if I reload the core it will clear up but I need to find and elimate the issues so it doesn't happen again.

Thank you in advance!
Google Home,
Aruba IAP-305 (RW)

I am trying to set up a VPN for my Google Home so it will register as being in the US. I am currently in Ireland and have purchased a subscription to NordVPN.  From what I understand, a VPN cannot be put on the actual Google Home device.

I currently make a lot of calls to the US. Google Home offers free calls in the US but is not available here in Ireland. This is one of the main things I want to get from my Google Home.

If the net result of the VPN makes Google Home look like its in the US, I do not want the rest of my tech devices to think they are in that location, i.e all of my other tech devices have locations in Ireland.

I am trying to add a non cisco SFP between two catalysts, and am getting the error %PHY-4-SFP_NOT_SUPPORTED: The SFP in (PortNo#) is not Supported.

I have tried running the commands:

Switch(config)#service internal
Switch(config)#no errdisable detect cause gbic-invalid
Switch(config)#service unsupported-transceiver
Switch(config)#int gi0/49
Switch(config-if)#no shutdown
Switch(config-if)#do copy run start

However, the issue is still occurring. I have rebooted the switch after the above with no joy. Cable being used is a StarTech 3m SFP+ 10-Gigabit Ethernet (10Gbe) Twinax Cable. I will be upgrading the firmware to 15.2.6 while waiting for a reply.

Any help will be appreciated.

Switch Ports Model                     SW Version            SW Image            
------ ----- -----                     ----------            ----------          
*    1 50    WS-C2960X-48TS-LL         15.2(2)E6             C2960X-UNIVERSALK9-M
I have actually two satellite dishes serving Internet to our remote facility.  

Based on machine MAC address, is it possible for certain machines to be provided service from one dish, while other machines are served from the the second dish?

What would be the technical issues involved in doing this?

Thank you very much.
So I have always used Cisco with 10GbE stack cable's where you stack each switch to the one below and the last to the first so if an individual switch goes down the rest of the stack stays up.

I am now looking at a Meraki setup where we have a small stack on several floors going back to two switches that have the external connections. 1Gb is fine here, I don't need the 10Gb as this is just for desktops not servers.

The two switches have SFP to the first in each switch stack, the first switch then has a copper uplink to the other switches. This seems odd to me.

I would have thought that I should copper all the switch stacks from first to last and then the last in the stack copper to the next switch stack. That way all stacks have the SFP for normal operation but can fail to copper to the next switch I the stack up or down and the stack can fail across to the next stack if the SFP switch goes down.
The network provider in my area recently shut down their 2G service and now my GSM modem doesn't work. Is there another kind of modem that would be compatible with a 3G network? I've looked a bunch of other places and it doesn't really seem to be terribly clear about it.
Free Tool: IP Lookup
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Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

I've got a Dell XPS 8700 (24GB RAM)  with :
-1 Built-in Realtek 1GB Ethernet Port
-Intel Pro/1000 Dual GB Ethernet card
-HP quad port GB Ethernet card (Intel Drivers)

I'm studying for CCENT/CCNA and renewing some old Microsoft certs.  I have been out of the networking game for quite some time.  I don't have the means to purchase server grade equipment at the moment and would like to use the desktop as a Management box if possible.

    -Can I bridge an interface to a VM and have that port plugged into a router on a different subnet?
      -Will I open myself up to a world of hurt for having multiple interfaces with different IP addresses?
        -Is this a situation where I should "Bridge" connections?

        Finally, did I pose this question correctly?

        Thank you for any and all advice/criticism.
        We have a Fortigate FG200D behind a dirty switch. We upgraded our ISP bandwidth from 50x50 to 1Gbx1Gb.
        With a device plugged into the dirty switch I speed test about 850x850 consistently.

        Behind the firewall my speed tests are 500x100 consistently.
        I have turned disabled all web filtering, AV, IPS, etc to test, and it doesn't make a difference filtering or not. Still the same degraded speed.

        Anyone know what else I can test/check for the bottle neck?
        Having difficulty connecting a fibre cable in an old Mill. Fibre Cable could be 15-20 years old. It has male SC connectors at each end, which go into an 10/100 TX to FX Ethernet converter, with a single Ethernet port. These units are old and the power supply on it has failed a few times.
         I am replacing these units with 2 x Zyxel GS1900 10H using some HP transceivers with LC connections.
        I bought some LC to SC male to male fibre patch cables  and 2 x SC to SC female couplers. When I connect both switches together on a table using the 2 patch leads and one coupler everything works, lights on both fibre modules on the switch are working and connection is good.
        However, when I put the setup in the mill it doesn't work. Tried reversing A & B at either end, but no light comes on the switch for the transceivers. Put back the old modules and all OK. Any help much appreciated.
        I am new to VLANs, I have a single CISCO SG300-10.  How do I configure 3 VLAN to create 3 separate networks which can communicate on the 1 SG300-10 switch. Would be nice to provide internet access.  I cannot tell step by step how to do this.  I have read the posts, but none match up pt for pt with SG300-10 interface. Not sure whether to use General or Trunk, Tag or Untagged.  

        I am creating 3 VLANs on the SG300-10
        VLAN 1 = default on GE1
        VLAN 10 = =GE3-GE5
        VLAN 20 = = GE7-GE9
        VLAN 30 =

        How should the ports be configured so the hosts on the VLANs can communicate with each other.   I keep reading the inter vlan should happen automagically, but it is not happening.
        I have a front gate on my farm that has 1800 feet of what I think is cat 3 untwisted 25 pair wire that was placed under Ground 10 years ago to operate the telephone connection and gate opener, the question: is there a way to wire this into my LAN in the house to be able to connect video Surveilance and or like a "Ring Doorbell" for internet access?
        Hi All,

        I am having problems loading OS image onto a new Nexus 9504 with 2 sup below are the steps i have tried, any advise would be much appreciated. image i am using is nxos.7.0.3.I5.2.bin

        1. Reload switch and
        2. Ctrl + C
        3. cmdline recoverymode=1 and cmdline init_system
        4. boot nxos.7.0.3.I5.2.bin (which is copied on bootflash/)
        5. After this it starts configs and took some time but displayed other messages: System is coming up ... Please wait ...
        6.After this, it returns to bash shell: bash-4.2# and nothing happens
        7. Both switches, I have reloaded twice and retied again; but still same.

        when i exit it takes me into (standby) login: but requires username and password which i have tried all the defaults and will not let me in.

        the system was setup with an auto attendant and 3 call groups for voice mail and after the auto attendant the caller would choose 1 , 2 or 3  and that would send you to the proper mail box and then you would hear that message. i can not figure out how to rerecord the auto attendant message or change the message for the mail boxes that auto attendant send the caller to. i can do intercom 500 from every extension and that takes me to voice mail management, but I can not figure out how to manage another mail box other than the extension I am on or how to change the recording on auto attendant. I can access both systems with my laptop.
        Hi ALL

        i have done the configuration in HP aruba 2420 switch ,same configuration needs to be in juniper EX3300 switch,

        Kindly find the below HP Switch Aruba commands,

        #hostname hp-switch1
        #vlan 10 ip address
        #vlan 10 tagged A1 ( i need to tag port also fine )
        #vlan 20 tagged A1 ( i need to tag port also fine )
        #vlan 150 tagged A1 ( i need to tag port also fine )
        #vlan 10 untagged 1-46
        #vlan 20 untagged 47-48
        #timesync sntp
        #sntp unicast
        #sntp server priority 1
        #time timezone 330
        #ip default-gateway
        #snmp-server contact Bang-Systems location 9th-floor
        #vlan 1
        #no ip address
        #vlan 10
        #name sales
        #vlan 60
        #name cop

        #no telnet-server
        #no password operator
        #password manager plaintext ********

        #radius-server host key root123
        #radius-server key root123
        #aaa authentication login privilege-mode
        #aaa authentication console enable radius local
        #aaa authentication telnet login radius local
        #aaa authentication web login radius local
        #aaa authentication ssh login radius local
        #aaa authentication ssh enable radius local
        #aaa authentication port-access chap-radius
        #aaa port-access gvrp-vlans
        #aaa port-access mac-based addr-format multi-dash
        #aaa port-access mac-based 1-46

        #snmpv3 enable
        # # Give password 123456
        # # type "n" for user creation
        # # type "y" for restricted access
        #snmpv3 user snmpv3user auth sha EPe3XjeQh3F5…
        I'm looking for some input regarding some recent spine/leaf design proposals I've come across. While a "traditional" S/L design would be to connect the enterprise campus core via L3 connections to the DC leaf nodes, what's been proposed are designs where all LAN distribution would also connect to the leaves, the S/L becoming a unified/collapsed DC and campus core.

        Traditional spine/leaf
        Proposed spine/leaf (collapsed LAN/DC core)
        I'm looking to vet potential concerns around this design (if any). If a customer is also looking to handle Layer 2 extension/overlay across the S/L fabric to support VM mobility (a la VXLAN), does this present a problem? Or, would we simply define the ports that connect to compute resources as VTEPs and NOT the links leading to the LAN switching?

        Again, looking to see if others are running across (or even deploying) these collapsed designs, where the before/after net effect is the removal of the existing campus core switching layer (and thus, savings in hardware expense).

        Thanks again
        Connect further...control easier
        Connect further...control easier

        With the ATEN CE624, you can now enjoy a high-quality visual experience powered by HDBaseT technology and the convenience of a single Cat6 cable to transmit uncompressed video with zero latency and multi-streaming for dual-view applications where remote access is required.


        I have a Cisco Air-Lap1042N-E-K90 access point but when I try to do a factory reset of this AP so I can configure it there is no option for conf t

        I have followed the reset procedure and unplugged and pressed and held the mode button and the AP goes through it's startup until the LED goes to solid red,  At this point I release the mode button, The LED initially blinks green, then goes to blinking red and then continues onto blinking amber and then seems to stick in this loop after this stage I can ping the ip assigned when I connect an Ethernet cable but I still can't even login on my browser or conf t into it at CLI level either.

        Is there something I'm missing here as I'm not fully conversant in cisco.?

        Any help would be grateful

        I have a program that our organization uses to collect reports and recently the GSM modem has been unable to receive or send SMS messages. All AT+CPIN= codes return ERROR. AT will still return OK. When I configure the modem, it looks like this.
        How do I fix this?
        Any help would be greatly appreciated. Thanks.
        Title says it all. We need to configure multiple (12) tomcat servers on a single application server and are using a Barracuda model 340 load balancer. I'm not certain because I don't configure Tomcats, but is it just a case of assigning each tomcat an ip address and then defining all 12 ip addresses to the load balancer?
        is it possible to use vga inpt and extend to laptop directly
        i mean
        [device eg, dish reciver]--VGA cable--->[vga extender...LAN out]---RJ45--->[LAN in...laptop]
        if possible how it can be configure

        Let's say I'm an ISP and I lease a 10G transport pipe to an IX (Frankfurt or Amsterdam), with the purpose of buying transit from 2 different tier 1 providers (2 resellers, probably) and peering with content providers.

        What happens inside the IX?

        Do I get one switch port and I have to rent rack space for my own equipment there? The peerings are physical, with cables between my switches and the peer switches?

        Or I only get a VLAN and the peerings are inside the IX main router/switch? And I route the traffic from my VLAN to my peer's VLAN?


        I've googled for the past days, but I'm still confused. Anyone has real world experience with this?

        Thank you.
        I am replacing my router.  Can I use the same SSID as the old.  Can I use the same SSID and change the password ?

        Networking Hardware-Other





        Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.