GS-5220-Series (V4) User Manual
Table Of Contents
- 1. INTRODUCTION
- 2. INSTALLATION
- 3. SWITCH MANAGEMENT
- 4. WEB CONFIGURATION
- 4.1 Main Web Page
- 4.2 System
- 4.2.1 Management
- 4.2.1.1 System Information
- 4.2.1.2 IP Configuration
- 4.2.1.3 IP Status
- 4.2.1.4 Users Configuration
- 4.2.1.5 Privilege Levels
- 4.2.1.6 NTP Configuration
- 4.2.1.6.1 System Time Correction Manually
- 4.2.1.7 Time Configuration
- 4.2.1.8 UPnP
- 4.2.1.9 DHCP Relay
- 4.2.1.10 DHCP Relay Statistics
- 4.2.1.11 CPU Load
- 4.2.1.12 System Log
- 4.2.1.13 Detailed Log
- 4.2.1.14 Remote Syslog
- 4.2.1.15 SMTP Configuration
- 4.2.2 Simple Network Management Protocol
- 4.2.3 RMON
- 4.2.4 DHCP server
- 4.2.1 Management
- 4.3 Switching
- 4.3.1 Port Management
- 4.3.2 Link Aggregation
- 4.3.3 VLAN
- 4.3.3.1 VLAN Overview
- 4.3.3.2 IEEE 802.1Q VLAN
- 4.3.3.3 VLAN Port Configuration
- 4.3.3.4 VLAN Membership Status
- 4.3.3.5 VLAN Port Status
- 4.3.3.6 Private VLAN
- 4.3.3.7 Port Isolation
- 4.3.3.8 VLAN setting example:
- 4.3.3.8.1 Two Separate 802.1Q VLANs
- 4.3.3.8.2 VLAN Trunking between two 802.1Q aware switches
- 4.3.3.8.3 Port Isolate
- 4.3.3.9 MAC-based VLAN
- 4.3.3.10 Protocol-based VLAN
- 4.3.3.11 Protocol-based VLAN Membership
- 4.3.4 Spanning Tree Protocol
- 4.3.5 IGMP Snooping
- 4.3.6 MLD Snooping
- 4.3.7 MVR (Multicast VLAN Registration)
- 4.3.8 LLDP
- 4.3.9 MAC Address Table
- 4.3.10 Loop Protection
- 4.3.11 UDLD
- 4.3.12 GVRP
- 4.3.13 Link OAM
- 4.4 Routing
- 4.5 Quality of Service
- 4.6 Security
- 4.7 Power over Ethernet
- 4.8 Ring
- 4.9 ONVIF
- 4.10 Maintenance
- 5. SWITCH OPERATION
- 6. TROUBLESHOOTING
- APPENDIX A: Networking Connection
- APPENDIX B : GLOSSARY
User’s Manual of GS-5220 PoE Series Managed Switch
437
Any Web server machine contains, in addition to the web page files it can serve, an HTTP daemon, a program that is
designed to wait for HTTP requests and handle them when they arrive. The Web browser is an HTTP client, sending
requests to server machines. An HTTP client initiates a request by establishing a Transmission Control Protocol (TCP)
connection to a particular port on a remote host (port 80 by default). An HTTP server listening on that port waits for the
client to send a request message.
HTTPS
HTTPS is an acronym for Hypertext Transfer Protocol over Secure Socket Layer. It is used to indicate a secure HTTP
connection.
HTTPS provide authentication and encrypted communication and is widely used on the World Wide Web for
security-sensitive communication such as payment transactions and corporate logons.
HTTPS is really just the use of Netscape's Secure Socket Layer (SSL) as a sublayer under its regular HTTP
application layering. (HTTPS uses port 443 instead of HTTP port 80 in its interactions with the lower layer, TCP/IP.)
SSL uses a 40-bit key size for the RC4 stream encryption algorithm, which is considered an adequate degree of
encryption for commercial exchange.
I
ICMP
ICMP is an acronym for Internet Control Message Protocol. It is a protocol that generated the error response,
diagnostic or routing purposes. ICMP messages generally contain information about routing difficulties or simple
exchanges such as time-stamp or echo transactions. For example, the PING command uses ICMP to test an Internet
connection.
IEEE 802.1X
IEEE 802.1X is an IEEE standard for port-based Network Access Control. It provides authentication to devices
attached to a LAN port, establishing a point-to-point connection or preventing access from that port if authentication
fails. With 802.1X, access to all switch ports can be centrally controlled from a server, which means that authorized
users can use the same credentials for authentication from any point within the network.
IGMP
IGMP is an acronym for Internet Group Management Protocol. It is a communications protocol used to manage the
membership of Internet Protocol multicast groups. IGMP is used by IP hosts and adjacent multicast routers to
establish multicast group memberships. It is an integral part of the IP multicast specification, like ICMP for unicast
connections. IGMP can be used for online video and gaming, and allows more efficient use of resources when
supporting these uses.
IGMP Querier
A router sends IGMP Query messages onto a particular link. This router is called the Querier.