tiểu luận môn quản trị mạng web based network management

Web based Network
Web based Network
Management
Management
Giáo viên:
Học viên:
Lớp:
TS. Nguyễn Văn Tam
Kiều Minh Việt
K17 - TDL&MMT
03/02/15 08:18
Web based Network Mana
gement
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Mở đầu
Mở đầu
•
Ngày nay, World-Wide Web (WWW) là ứng dụng Internet
được sử dụng rộng rãi
•
Quản trị mạng dựa trên web là việc sử dụng công nghệ này
vào việc quản trị mạng và các hệ thống máy tính
•
Lợi ích của việc quản trị mạng dựa trên web:
- Giảm chi phí bằng việc sử dụng công nghệ mở
- Hợp nhất các nền tảng quản trị riêng rẽ
- Đơn giản hoá việc quản trị bằng việc sử dụng giao diện
người dùng chuẩn và phổ biến
03/02/15 08:18
Web based Network Mana
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Hai trường hợp: quản trị thiết bị và quản trị
Hai trường hợp: quản trị thiết bị và quản trị
mạng
mạng
EWS-based EM SNMP-based NM
HTTP
EWS
Web Server
SNMP Manager
SNMP Agent
SNMP
HTTP
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Giao diện quản trị kép
Giao diện quản trị kép
•
We introduced two typical Web-based network
management schemes: an HTTP-based element
management using Embedded Web server ( EWS-based EM
) and an SNMP-based network management using front-
end Web server ( SNMP-based NM )
•
These two schemes have their own pros and cons
- Flexibility of management function: EWS-based EM is
better than SNMP-based NM ( especially the firmware
upgrade capability )

- Scalability: configuring hundreds of routers and switches
via a Web browser is simply not scalable. If there are many
EWS-equipped network elements typical for large systems
and networks, an administrator must open a Web browser
for each device
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Giao diện quản trị kép
Giao diện quản trị kép
•
Therefore, two models coexist in real world
•
For users:
- Enhanced user interface
- But still too expensive for network management by
SNMP-based NM
- Another interface needed for element management by
EWS-based EM
•
For equipment vendors
- Put EWS and SNMP agent into network devices
- Poor time-to-market and high cost
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Extended the EWS-based element
Extended the EWS-based element

management architecture to the network
management architecture to the network
management architecture
management architecture
•
Extended version of EWS-based element management
architecture
•
Communications using HTTP
•
Uses Java technology, especially the Java applet
•
Two model: 2-tier and 3-tier architectures
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Extended the EWS-based element
Extended the EWS-based element
management architecture to the network
management architecture to the network
management architecture
management architecture
•
Supported basic management functions
- Notification: determines which events in device occurs on
the basis of the event message and customizes the event
message to notify administrator
- Data collection: gathers management data from the
device and stores the data it collects in the database

- Agent discovery: polls an EWS agent to initially discovery
EWS equipped device and then detects configuration and
status changes in the network
- Data setting: provides an administrator a mechanism for
changing management information of a device
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Two-tier EWS-based NM architecture
Two-tier EWS-based NM architecture
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Three-tier architecture
Three-tier architecture
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Management Information Server
Management Information Server