MindMap Gallery network technology
Summary of network technologies, including firewalls, Win command, BGP, website logo, switch, Integrated wiring, etc.
Edited at 2024-03-23 22:24:50Avatar 3 centers on the Sully family, showcasing the internal rift caused by the sacrifice of their eldest son, and their alliance with other tribes on Pandora against the external conflict of the Ashbringers, who adhere to the philosophy of fire and are allied with humans. It explores the grand themes of family, faith, and survival.
This article discusses the Easter eggs and homages in Zootopia 2 that you may have discovered. The main content includes: character and archetype Easter eggs, cinematic universe crossover Easter eggs, animal ecology and behavior references, symbol and metaphor Easter eggs, social satire and brand allusions, and emotional storylines and sequel foreshadowing.
[Zootopia Character Relationship Chart] The idealistic rabbit police officer Judy and the cynical fox conman Nick form a charmingly contrasting duo, rising from street hustlers to become Zootopia police officers!
Avatar 3 centers on the Sully family, showcasing the internal rift caused by the sacrifice of their eldest son, and their alliance with other tribes on Pandora against the external conflict of the Ashbringers, who adhere to the philosophy of fire and are allied with humans. It explores the grand themes of family, faith, and survival.
This article discusses the Easter eggs and homages in Zootopia 2 that you may have discovered. The main content includes: character and archetype Easter eggs, cinematic universe crossover Easter eggs, animal ecology and behavior references, symbol and metaphor Easter eggs, social satire and brand allusions, and emotional storylines and sequel foreshadowing.
[Zootopia Character Relationship Chart] The idealistic rabbit police officer Judy and the cynical fox conman Nick form a charmingly contrasting duo, rising from street hustlers to become Zootopia police officers!
network technology
optic fiber network
AON active
Requires switch or transceiver equipment, point-to-point
High operating costs, low reliability, 90 kilometers
PON passive
OLT terminal computer room equipment
ODN wiring network transmits optical signals
Low operating cost, strong reliability, 20 kilometers
ONU network unit fiber optic modem
In the hierarchical design of the network system, the ratio of the uplink bandwidth to the lower level bandwidth between levels is generally controlled at 1:20
Architecture
C/S
B/S
Integrated wiring
multimedia socket
Optical fiber, copper cable
recessed socket
twisted pair
switch
STP
The smaller the priority value, the higher the priority
BPDU
Configuration information
35 bytes
Topology changes
4 bytes
exchange mode
Fast forward pass-through
14 bytes
Fragment discard type
64 bytes
store and forward
LAN
HiperLAN/1
5G
Up 20M
GMSK
HiperLAN/2
5G
54M
OFDM
Indoor 30m
Outdoor 150m
website logo
IP address
Non-standard TCP port number
host header
BGP
Group
open
update
keepalive
notifications
Win command
netstat-r
Show routing table contents
route-f
Clear all routing entries in the routing table
pathping
Check whether the locally configured DNS server is working properly
route
Display and modify entries in local IP routing
netstat-a
Displays the status of active tcp connections on the host
nslookup
Check whether the DNS server is effective
firewall
security level
The higher the number, the higher the security level 1~99
High level - internal interface Low level - external interface
model
Monitor mode
Operating system image updates
Password recovery
Order
conduit
Allow data flow from a lower security level interface to a higher security level interface
static
Implement fixed mapping of internal and external addresses
fixup
Enable, disable, or change the ports of a service or protocol through the firewall
nat global
Internal network access to external network
IEEE
802.11
2.4G ISM
1~2M
physical layer
FHSS (frequency hopping spread spectrum)
DSSS (Direct Sequence Spread Spectrum)
Infrared propagation
MAC layer
RTS/CTS
CSMA/CA
equipment
wireless node
wireless access point
802.11b
2.4G ISM
11M
33M
Operation mode
Peer-to-peer mode (peer-to-peer solution)
Network card - network card
Up to 256 PCs
basic mode
Access point (AP)
Up to 1024 PCs
802.11a
5G UNII
54M
432M
802.11g
2.4G ISM
54M
162M
802.16
802.1d
Transparent bridge, STP
IDS
centralized
distributed
hierarchical
collaborative
Equivalence
Single point of failure avoided
IPS (In-Line mode)
HIPS
NIPS
AIPS
router
service quality
Queue management mechanism, port hardware queue management and QoS protocol support
backplane
Throughput
Packet forwarding capability
Number of ports
port speed
Packet length
package type
high-end
100,000 hours
30 minutes
50ms
Burst handling capability
Minimum frame interval The maximum sending rate at which packets can be sent without causing loss
loopback
subtopic
Memory
ROM
Power-on diagnostics, bootloader, operating system software
RAM
Routing tables, various buffers and running configuration files (temporary information)
NVRAM
Start configuration file, backup configuration file
configure memory
Load configuration information command from NVRAM
write memory
Save router configuration in NVRAM command
Flash
Operating system image file and some microcode
OSPF
area
32-bit identifier
Quantity does not exceed 200
database
Topology
Bluetooth
802.15
2.402G~2.480G ISM
rate
asynchronous
asymmetric
732.2K/57.6K
symmetry
433.9K
Synchronize
64K
Frequency hopping rate
1600 times/second
Transmit power and coverage
0dBm 1~10m
20dBm 100m
key
Increases in 8bit units, up to 128bit
Data connection method
SCO
ACL
UTM (Unified Threat Management)
anti-virus
firewall
Intrusion Detection (IDS)