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Questions tagged [switch]

For questions about network switches, the term commonly refers to a multi-port network bridge that processes and routes data at the data link layer (layer 2) of the OSI model.

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2
votes
1answer
58 views

configure IPv6 ACL on interface WS-C3750X-48

I am using  WS-C3750X-48 model switch. license is lanbase. I have activated cmd on my switch: sdm prefer dual-ipv4-and-ipv6 routing. Then i did reload. After that, i will able to config IPv6 on ...
2
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2answers
16k views

How do i factory reset a Allied Telesyn AT-9924t?

I have connected to the switch from my Win7 computer with the following equipment. (the blue cable isnt the exact one, but nearly the same) When i restart the switch while connected with Putty or ...
2
votes
3answers
1k views

How does access point changing populate MAC addresses in switch tables?

Let us assume that I have a large corporate WLAN network with many access points having the same SSID. The WLAN access points are connected to each other by learning Ethernet switches. Now, each ...
0
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1answer
29 views

SSID active but not connecting to internet [closed]

I have a modem which is connected to a 24 port Ethernet switch, which intern is connected to a wifi router on different level of the building. It was working fine yesterday but I need to have ...
0
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3answers
59 views

Access a pc web service with different ip/mask in on-site network

I tried to get a setup working to make the following scenario work: Access a pc web service hosted in a different IP range/mask than the rest on-site PCs. Details: We have a network setup with a ...
0
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1answer
33 views

How can I connect (stack) two Cisco SG350 together?

I am building a storage network, physically separated from the data network. I have two Cisco SG350-28P-K9 V02 switches: One on the basement. Has two NAS, two ESX servers. (in use) One on the 4th ...
0
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0answers
12 views

Control cameras using PTP protocol [closed]

I'm having issues setting up an ubuntu machine to control four computer vision cameras using a PTP protocol. Instructions for the camera I currently have access to a 4-port intel i350 based network ...
2
votes
1answer
336 views

Cisco 2960 not receiving dhcp from the router

I have a problem with Dhcp of some the Vlans. here is how my network is : I have a router ASR1001, which connects 15 switches(2960) as a ring topology. each switch has a subinterface of the router ...
0
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0answers
18 views

The huawei S2300's interface protocol become `--`

The huawei S2300's interface protocol become --: <HW>dis interface brief *down: administratively down ...
0
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1answer
23 views

Is it possible to query interface statistics bytes by given start time to end time in Juniper Device?

I can query a interface detail: admin@Juniper-EX# run show interfaces ge-0/0/1 detail Physical interface: ge-0/0/1, Enabled, Physical link is Down Interface index: 131, SNMP ifIndex: 504, ...
0
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1answer
62 views

Linux network bonding/teaming

I have two linux servers with two NICs each and two unmanaged switches. This is my preferred design: Server A - eth0 -> Switch 1 Server A - eth1 -> Switch 2 Server B - eth0 -> Switch 1 ...
0
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1answer
34 views

Korenix Switch JetNet 4508v2 SSH Problem

Does anybody know, or has anybody worked with Korenix JetNet 4508v2? This Switch has a very important Bug in the Firmware. SSH is working fine, but for a period of time. Then, ssh is not working ...
0
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1answer
28 views

Jumbo frame problem when using switch

I have two GigE cameras. I use 4 frame per second for capturing. Each frame of first camera is 2.3MB. Each frame of second camera is 1.8MB. So in a second I use 4 * 4.1 = 16.4 MB = 131 Mb of bandwidth....
0
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1answer
44 views

Is this device a network hub? [closed]

Due to the space limitation of the conduit, I ran a single cable from the switch to my room, and intended to run 2 separate fast Ethernet lines on it (4 wires each). I bought this thing from China for ...
0
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1answer
74 views

Why doesn't Ethernet protocol support switch fabric topology?

While learning about Fibre Channel and SAN, I found the following information on IBM Knowledge Center: A switched fabric is a fibre channel topology in which individual node ports are ...
6
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4answers
9k views

Toggle Switch for an Ethernet Cable

Is it possible to place a switch in one of the four/five wires of an Ethernet cable that will disable it? For my hardware project I would like the user to be able to disable the internet connection ...
1
vote
1answer
2k views

Routing Between 2 different vlans but same subnet

I have a basic doubt understanding vlan communication. Scenario: Let's say a single switch and has been configured with 2 vlans (vlan 100 and vlan 200). Vlan 100 connects to lets say 192.168.100.0 ...
0
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0answers
21 views

Getting less pings received than expected when using port mirroring

I have put port monitoring on a cisco 2960 switch Switch(config)#monitor session 1 source interface fastEthernet 0/1 - 23 rx Switch(config)#monitor session 1 destination interface fastEthernet 0/24 ...
10
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2answers
1k views

How many stack cables would be needed if we want to stack two 3850 switches

How many stack cables would be needed if we want to stack two 3850 switches : We have one 3850 switch and planning to add one more. So my guess is only one Power & One data stack cable would be ...
0
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0answers
28 views

How to analysis the below situation, is the too many switch trunk connect caused this issue?

I have two Juniper EX switches, and the Juniper-EX-01(ge-0/1/1) connected to the Juniper-EX-02(ge-0/1/0). I want to check is there any optical attenuation problem, or other link errors. admin@...
0
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1answer
28 views

How to trace the MAC route? [duplicate]

If there have several Switches, they are connected using trunk, and in the end switch there is server on it. So, if there is a controller server on the other end. if the controller trace to the end ...
0
votes
1answer
67 views

How to filter the physical port of the switch through snmp?

I tried using snmp to get ifdescr, I think the interface name containing Ethernet might be a physical port, but I am not sure. In addition, the interface in dot3StatsIndex is also like a physical ...
5
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1answer
134 views

Non-HP transceiver and HP switch

Does a non-HP single-mode transceiver work in a HP switch, and does a non-HP single-mode transceiver communicate with a single-mode HP transceiver?
3
votes
1answer
355 views

Cisco/Meraki switch SFP compatibility and dual link

Our company wants to connect two different floors together about 150-200 feet apart. I was thinking fiber would be the best option for this but I don't have much experience so I would like to see if ...
0
votes
2answers
46 views

Using different speed in switch ports?

Is it legal to use different Ethernet speed in the different ports of a network switch ? For example, one port will be connected to a PC in 1G, and another port connected to another PC in 100M ?
1
vote
1answer
153 views

Switch cannot ping server

My switch won't ping my server. Both are directly connected with each other, and are in vlan 666. When I initiate a ping from my switch to my server, the switch sends ARP requests. Then the server ...
0
votes
1answer
50 views

How do VLANs Work? Some Basic Questions:

I've recently started looking into VLANs. I am a network novice so bear with me please:). I have a few questions regarding VLANs. I understand that certain managed switches allow you to create VLANs. ...
0
votes
1answer
43 views

Arista switch - getting chassis ID of currently logged in switch

I can not find how can i check local switch Chassis ID. here i found that command: show lldp local-info management 1 should show me what i want but there is no "local-info" option. Is there any ...
0
votes
2answers
584 views

Naming a VLAN with a space in name

I am supposed to name 2 vlans, VLAN 10, and VLAN 20. When I type Switch(config-vlan)#Name VLAN 10 ^ % Invalid input detected at '^' marker. Could I get any help please.
0
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2answers
48 views

Can a router route 2 switches with multiple vlans and subnets

Good afternoon/evening, Today on my Cisco Packet Tracer, I made two layer 2 switches and 2 PCs on each switch. I created a vlan 10 on the switches. I trunked the switches together so they can see ...
0
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0answers
23 views

Dell PowerSwitch S4810 - Cumulus Linux password reset not working

I’m trying to login to a Dell S4810-ON and the default username/passwords are not working ([https://support.cumulusnetworks.com/hc/en-us/articles/201787646-What-is-the-Default-User-Name-and-Password-...
1
vote
1answer
80 views

dhcp client not receving the ip address using two switches

1) In Router 4(R4) i have configured the 2 dhcp pool. first dhcp pool with ip address 150.10.10.0/24 and second one with 150.20.10.1/24 in subinterfaces f0/0.1 and f0/0.2 and encapsulated using (R4(...
0
votes
1answer
40 views

Do I need to configure a managed switch if I want to use it as unmanaged?

I'm a bit confused with the whole managed switch setup. I understand from a friend that if I want to use a managed as an unmanaged switch, I just need to use it directly out of the box without any ...
0
votes
3answers
65 views

Bridges, hubs, switches and repeaters in subnetting

I'm learning to subnet and I'm constantly doing exercises on paper about this topic. I'm trying to breakdown a network into smaller subnets, given the number of hosts for each one. For now, I only ...
0
votes
2answers
81 views

How is Ethernet a packet-switched network?

Let's say for example there is an Ethernet switch, and there are four PCs connected to this switch. PC1 and PC2 are communicating with each other, and at the same time PC3 and PC4 are also ...
0
votes
0answers
12 views

Why we need routers when there is layer 3 switches [duplicate]

I know that routers only do routing but layer 3 switches can do both switching and routing. my question is why we still need routers when we have layer 3 switches ?
3
votes
4answers
6k views

Switches 'HPE OfficeConnect 1920S' - Enable SSH / TFTP Services

We need to manage switches HPE OfficeConnect 1920S remotely but only HTTP/HTTPS Administration is available. HPE 1920S has an special operating system, neither Procurve nor Comware. We are looking ...
2
votes
1answer
44 views

Upgrading Cisco 819 to 809, can I connect devices to 2 routed ports and be on same subnet?

The company I work for has multiple remote "IoT" style sites connected back to the datacenter via a Cisco 819 cellular router. We are in the process of upgrading these to the newer Cisco IR809 routers ...
0
votes
2answers
39 views

Using 2 different ISP In case one dies

It's my first ever post in here and I hope not the last. I'm looking for some advice. I'm trying to reduce my internet downtime for a local network. My setup. Mix and match computer environment (...
1
vote
1answer
60 views

Ping across VLANs using layer 2 switch

I'm trying to ping one PC on one particular VLAN (VLAN 80) from another PC on a different VLAN (VLAN 50). I have a layer 2 switch (Cisco 2950T), so I can't do it from within itself. How would I be ...
0
votes
1answer
21 views

Broadcast Timer [duplicate]

This question is regarding in the process of L2 MAC Address learning. As we know, if a sender sends a packet to some receiver host which switch doesn't know, it will broadcast for learning. Assume an ...
2
votes
1answer
460 views

spanning-tree port type edge trunk on port-channel vs physical interface

If i configure spanning-tree port type edge trunk on physical interface instead of port-channel does that work? Or i have to do spanning-tree port type edge trunk on port-channel ? Example: ...
0
votes
1answer
78 views

Help with VLANs on Meraki MX

I have a Meraki MX84 in Routed mode with a Default 10.10.0.0/24 subnet and then VLAN 10.10.3.0/24 ID 3, VLAN 10.10.4.0/24 ID 4, VLAN 10.10.5.0/24 ID 5, and 10.10.8.0/24 with ID 8. All ports on it are ...
0
votes
2answers
64 views

Fiber connection between a switch and a media converter

I'm trying to connect 2 buildings with a MMF (OM2). Here's my setup: Media converter side: MC: https://www.fs.com/products/17237.html SFP: https://www.fs.com/products/29838.html Switch side: SFP ...
0
votes
3answers
95 views

How do devices connected to a switch get their IPs?

It should go without saying, I'm all new to networking and there is plenty I need and want to learn about. One of the things I'm not clear on and couldn't find a satisfying answer to, although I've ...
0
votes
1answer
41 views

Why Meraki Switches have DNS defined in their settings?

What a Meraki switch would do with DNS? switching has nothing to do with Domain name resolution.. the only thing I can come up with, is that their switches probably using some type of domain address ...
0
votes
1answer
64 views

Two switches, one uplink - best way to link them?

Overview I have two Arista 7050SX switches. They don't support stacking. But I essentially will be using them as a stacked pair none the less (just means managing two individual switches). They're ...
3
votes
2answers
833 views

Why I have higher ping to the VLAN interface than to other local interfaces

I wouldn't call it an issue, but I'm curious. On our Quanta switch we have a couple of VLANs and vlan interfaces accordingly. Let's say I'm on a computer in VLAN 10, if I do: ping 192.168.10.1 ...
0
votes
1answer
48 views

I need help in creating OSPF between MultiLayerSwitch and Routers in packet tracer

I know we cannot create OSPF with different subnets. What network addresses should I put in the MLS and R1 to make it adjacent? Here's the configuration for MLS: interface FastEthernet0/15 no ...
-1
votes
2answers
89 views

Is this scheme- An Ip camera network completely isolated from rest of Intranet

IP camera network completely isolated from rest of the Intranet work and for connecting each IP camera at mutually 900 m TO 1.5 km distanc to switch near NVR about 800 to 1.5 km from each IP camera ...