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Cisco Video Surveillance 8020/8030 IP Camera Reference Guide
Chapter 5 Configuration
Network > SNMP (Simple Network Management Protocol)
QoS/DSCP (the DiffServ model)
DSCP-ECN defines QoS at Layer 3 (Network Layer). The Differentiated Services (DiffServ) model is
based on packet marking and router queuing disciplines. The marking is done by adding a field to the IP
header, called the DSCP (Differentiated Services Codepoint). This is a 6-bit field that provides 64
different class IDs. It gives an indication of how a given packet is to be forwarded, known as the Per Hop
Behavior (PHB). The PHB describes a particular service level in terms of bandwidth, queueing theory,
and dropping (discarding the packet) decisions. Routers at each network node classify packets according
to their DSCP value and give them a particular forwarding treatment; for example, how much bandwidth
to reserve for it.
Use the setting options of DSCP (DiffServ Codepoint) to specify the DSCP value for each application
(0~63).
Network > SNMP (Simple Network Management Protocol)
This section explains how to use the SNMP on the camera. The Simple Network Management Protocol
is an application layer protocol that facilitates the exchange of management information between
network devices. It helps network administrators to remotely manage network devices and find, solve
network problems with ease.
The SNMP consists of the following three key components:
•
Manager—Network-management station (NMS), a server which executes applications that monitor
and control managed devices.
•
Agent—A network-management software module on a managed device which transfers the status
of managed devices to the NMS.
•
Managed device—A network node on a managed network. For example: routers, switches, bridges,
hubs, computer hosts, printers, IP telephones, cameras, web server, and database.
Before configuring SNMP settings on the this page, enable your NMS.
SNMP Configuration
•
Enable SNMPv1, SNMPv2c—Select this option and enter the names of Read/Write community and
Read Only community according to your NMS settings.
•
Enable SNMPv3—This option contains cryptographic security, a higher security level, which allows
you to set the Authentication password and the Encryption password.
–
Security name—According to your NMS settings, choose Read/Write or Read Only and enter
the community name.
–
Authentication type—Select MD5 or SHA as the authentication method.
–
Authentication password—Enter the password for authentication (at least 8 characters).
–
Encryption password—Enter a password for encryption (at least 8 characters).
Security > User accounts
This section explains how to enable password protection and create multiple accounts.
