Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [switch]

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

Switches (in the context of this site) are devices with multiple network ports, which allow interaction between all devices connected to these ports.

Basic switches operate at the data link layer level (in TCP/IP networks) and forward packets based on the link layer address in the packet headers. They are different to hubs in the way that hubs generally broadcast incoming packets to all other ports, whereas switches keep tables of link layer addresses they have seen at specific ports and only forward packets to the relevant ports. Basic switches are also known as layer 2 devices.

Higher grade switches can include functionality at higher layers of the OSI stack. This can range from IGMP snooping (for multicast support) and VLANs through to NAT, VPN, firewalls or even application layer functionality (web caching or proxying). Such switches are known as multilayer devices.

1515 questions
0
votes
0 answers

Some Double Nvr Problems in same Network

We have a network camera system with 60 ip cameras. I realized today that some of the cameras are freezing. Approximately 30% cameras are freezing. I check cameras itself and network cables; all working normally. And then i checked the system…
user2853569
  • 1
  • 1
0
votes
1 answer

Import Custom SSL Certificate in Zyxel GS1920-8HPv2

I have a problem with importing a server ssl cert for https web connection on myZyxel GS1920-8HPv2. On the WebGui of the Switch, there is an information, that the cert and key has to be in a pkcs12 container. I did the following things to create the…
sangul
  • 1
  • 2
0
votes
1 answer

Jumbo MTU and switches

I have a network with several file servers, workstations and application servers. For simplicity we can consider it all attached to a single switch, say Dell 4032F with maximum Jumbo MTU size of 9216. I would appreciate your help with some questions…
Dima
  • 1
  • 1
0
votes
1 answer

Use of dual-port NIC

I was wondering, what is the purpose of a dual-port NIC on a blade compute unit, in the context of a datacenter rack, like which of these configurations is more in line with modern datacenter architecture? Having a backup top-of-rack switch (is…
Mihir Shah
  • 11
  • 2
0
votes
1 answer

Difference between Bridging, Switching, Forwarding a frame?

What is the Difference between Bridging, Switching, Forwarding a frame? What is the difference between Control Plane Vs Forwarding Plane and Slow path Vs Fast Path? How are the above terms related to these? Can someone explain how a packet travels…
aks
0
votes
0 answers

SANBOX 5602 - Having diffculty changing control from XP64 to Win10

We use a Sanbox 5602 to route fiber data from several Xyratek Raids to several PC workstations. Had used XP64 workstations in the past, now migrating to Win10. Cannot get any version of Java to work on Win10.Sanbox 5602 FW version is V7.4.0.16.0…
Dannykman
  • 1
0
votes
1 answer

iptable's ip forwarding results in weird behaviour

My target is simple : Build a high volume, fast, low latency soft switch using IP forwarding. I have a server test 'Server' and 2 test clients : 'Client1' & 'Client2'. 'Client1:c1' is sending udp packets to 'Server:s1' & 'Client2:c2' is sending udp…
Nafiul Alam Fuji
  • 113
  • 6
0
votes
0 answers

Beluganos on Netberg Aurora 620

I need to modify beluganos required to work as a balancer on Netberg Aurora 620 equipment. But I don't know if the Aurora 620 switch will work with beluganos. While configuring I am getting error: root@netberg-aurora-620-sw:~/beluganos# sudo bash…
John Doe
  • 1
  • 1
0
votes
1 answer

Diagnosing switch support for LACP and Link Agreggation

How can I tell if an airgapped switch supports LACP and link aggregation?
Papu
  • 1
0
votes
0 answers

Connection drop

Trying to solve this problem here but not 100% sure what's the issue. 4 Fetal monitors and a PC in a clinic are connected to a switch. Those communicate with the PC. 1 to 4 times a day there is a connection drop between PC and all 4 monitors. Drop…
kasper
  • 1
0
votes
1 answer

Dell S5296F-ON: Are there any logs which can tell why so many dropped packets?

The Dell switch model info: # show version Dell EMC Networking OS10 Enterprise Copyright (c) 1999-2021 by Dell Inc. All Rights Reserved. OS Version: 10.5.2.3 Build Version: 10.5.2.3.316 Build Time: 2021-02-26T20:03:25+0000 System Type:…
SF.express
  • 378
  • 1
  • 16
0
votes
0 answers

Cisco Switch - Enable Telnet using HTTP

I'm trying to automate the configuration process of a Cisco switch (SG-300). I was able to automate everything I need using telnet, but the last issue I still have is to enable telnet itself. For now I enable it using the web interface and my plan…
Outman
  • 103
  • 5
0
votes
1 answer

Understanding dropping of packets to fight against an DDoS Attack

I always wondered how big tech companies could fight against DDoS Attacks reaching nearly 1tbps+. From my understanding traffic can't just disappear so even if I drop all e.g udp packets via iptables (also tried ebfp) iptables -A INPUT -p udp -j…
GrafMetrics
  • 1
0
votes
1 answer

Shared network attached storage - trunked with multiple vlans?

I am introducing an NFS server which I would like to share with KVM guests across different VLANS. I am trying to find a solution which would strike a good balance between function, serviceability, observability, and security. In this case I have…
Tomp736
  • 13
  • 4
0
votes
1 answer

Set Zyxel XS1920 as unmanaged switch

I have a Zyxel XS1920 smart managed switch https://www.zyxel.ch/de/support/download/201962_1/ I want to use it as a (very fast) unmanaged switch; like a QNAP QSW-1208. So I don't need it to be smart, I just need it to be simple so I can plug it in…
Jim
  • 101
  • 1
1 2 3
…
99 100