networking
I encountered the following situation: The network I administer was blocked, and this was traced down to a specific rack, after I reseted both switches, everything worked.
Why shutting down systems can backfire during a cyber
Why you shouldn''t be shutting down Immediately shutting down systems during a cyber attack, while not recommended, is a possible
Troubleshooting War Stories: Part 2
This is the second article in our "Troubleshooting War Stories" series, and this one will be shorter and dive into an incident with the corporate core switch.
1 of the 2 core switches gone bad
The network was working good with 2 3560G switches working as core switch.We had a power failure and since then the network is only stable if 1 core switch is running. if we turn on the
Core Switch and Access Switch Crisis
We have a Huawei Core switch and a Dlink plug and play switch before the new Huawei Access switch was deployed. I discovered that everyone on the Core Switch and Dlink Switch is all
Core Switch reboot
My recommendation is to upgrade the firmware, otherwise, raise a TAC Case so TAC will be able to diagnose the crash.
Network goes down when switch restarts
One of the benefits of NIC teaming is to connect one of each of the NIC ports into different switches, so that if one switch fails, communication is still achieved through the connection
FS Community
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What is a Core Switch | Functions and Difference over Normal Switch
What is a core switch and how it works? This article builds the basics of this kind of switch for the ones who don''t know anything about it. What is a Core Switch? It is a powerful
Among Us Servers Have Been Down For Over 48 Hours
Popular online indie sneak-and-stab simulator Among Us is currently facing an ongoing DDoS (distributed denial of service) attack. According to
I totally fucked up our network core switch and everything is down
We have a pair of Dell N3224P-ON switches and today''s morning my colleague gave me a task and instructions to remove some unused VLANs. I''m sure I removed the correct VLANs. When I saved
Cisco Core Switch loses power, network loses it''s mind!
I noticed the core had unusually high CPU usage. 99% over long durations. My initial trouble shooting started by switching off blades at a time to see if the usage went down the last
Troubleshooting War Stories: Part 2
Now the active core switch had suddenly failed, crippling the entire organization. The solution to reviving this core switch was unbelievable.
KLIA Network Disruption Was Caused By Unstable 21
Transport Minister Anthony Loke Siew Fook told Dewan Rakyat that the five day long Kuala Lumpur International Airport (KLIA) system disruption in
Top 9 Reasons for Network Switches Failure
Network switch failures can cause network downtime, affecting our business, production, and damage to our property, so we have to troubleshoot
Quake Live reports intermittent outages due to DDoS attack
"Quake Live is experiencing issues due to a DDoS attack, and may be down intermittently while we seek to address the problem," a brief message on the Quake Live site states.
Health industry struggles to recover from cyberattack on
Doctors are worried that the attack on Change Healthcare, part of UnitedHeathcare''s Optum division, will mean they can''t get paid properly for months.
Wiley Online Library | Scientific research articles, journals, books
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Core Switch Randomly Restarting
40 307 December 2, 2014 Bad connection on one port took down entire switched network Networking discussion, general-networking 23 3527 November 18, 2019 Network Suddenly
BPDU Guard and Root Guard Explained
With BPDU Guard enabled, as soon as the switch detects a BPDU on the PortFast-enabled access port, it shuts down the port (puts it in err-disable state) to prevent any negative
Solved: New Core Switch
As soon as any VS is moving from 1 box to the other this is seen as illegal by some switches, same in VMware switches. I myself never dealt with the 9000''s but this is where I would
Core Switch Failover | Tek-Tips
The problem or risk for this design is that if the core switch is down then that floor network will be down and if the core switch in the server room which is connecting the other floor is down,
Denial-of-service attack
Diagram of a DDoS attack. Note how multiple computers are attacking a single computer. In computing, a denial-of-service attack (DoS attack / dɒs / doss) is
The switch has rebooted unexpectedly – Edgecore Help
Step 2. Diagnose the mainboard and PSUs Power monitor will let switch shutdown when the failure in some power rails. Edgecore switches support power monitor
Network goes down when switch restarts
I am doing some testing. I have physical server (DC). i set up NIC teaming. 2 NICs, split into 2 different switches. When i restart one of the switches, the network goes down. Shouldn''t it still