What is a Core Switch? I stepped on the pit of choosing the wrong model for you
Hey! Brothers! Today, let's talk about a device that we often listen to when we work - the core switch!
I know that you are shuttling around the computer room every day, and when you see those iron boxes with lights on, you always mutter: Why is this thing higher than my salary? Don't worry, let's talk about it today.
Today's article reading benefits: "Huawei's Common Commands"
If you want to get more information, scan the QR code below to contact customer service.
What exactly is a core switch?
To use an analogy, it's like a city traffic command center, where the company's data traffic is diverted and forwarded. WeChat messages can be reached in seconds, surveillance videos are not stuck, and the ERP system is as stable as a dog, all of which depends on its ability.
Serious Definition:
Positioning: The "heart" of the network architecture, connecting the backbone of all subnets
Core Indicators:
Backplane bandwidth≥ 10Tbps (equivalent to the number of highway lanes)
Packet forwarding rate ≥ 200Mpps (200 million packets per second)
Support 100G optical transceiver (hard indicator for the next 5 years)
Guide to the selection of old drivers to avoid pits
Scenario 1: A small company with 50 people
Recommended:
24-port 10 Gigabit Layer 3 switch (Huawei S6730 series)
The key is heat dissipation: the 40°C environment can carry 8 hours of uninterrupted power
Required features: VLAN isolation + basic QoS
Scenario 2: 500 people manufacturing company
Key points of pit avoidance:
Don't save money on redundant power supplies (true and dual power supplies≠ fake redundancy)
The cache should be ≥8MB (to prevent Double 11 traffic liquidation)
Interpretation of industry vernacular:
"Layer 3 switching": not only can you check the MAC address, but also understand the IP route
"CLOS architecture": like Lego bricks, it can be expanded at any time without lagging
"Buffer Inflation": It's not that the device is fat, it's that the cache is not enough!
Deploy a three-step approach to actual combat
1. Cabinet planning
Plenty of space for heat dissipation (front and back≥ 80cm)
Don't switch the phase of the power supply in reverse (take the multimeter and then power it on)
2. Basic configuration
The golden rules of VLAN classification:
The office/production/monitoring network must be isolated
Separate VLAN management (to prevent the hardest-hit areas)
QoS Priority Setting:
3. Key points of daily operation and maintenance
Weekly checks:
CRC Error Count (> 0.01% Troubleshoot Now)
CPU utilization (continuous > 60% warning)
Monthly must-dos:
Configure backups (don't expect auto-save)
Log analysis (search keywords "error" and "discard")
For more learning materials resources, follow the Facebook account&youtube account: Thinkmo Dumps
