Raisecom
Gazelle S1512i-PWR (A) User Manual
7
Management and maintenance
Raisecom Proprietary and Confidential
Copyright © Raisecom Technology Co., Ltd.
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7.1.2 Web
The Gazelle S1512i-PWR provides Web management feature. You can log in to, manage, and
maintain the Gazelle S1512i-PWR through the Web browser.
Web management employs the graphic management interface and is more easily to access
compared with the CLI mode.
7.1.3 SNMP
Simple Network Management Protocol (SNMP) is designed by the Internet Engineering Task
Force (IETF) to resolve problems in managing network devices connected to the Internet.
Through SNMP, a network management system can manage all network devices that support
SNMP, including monitoring network status, modifying configurations of a network device,
and receiving network alarms. SNMP is the most widely used network management protocol
in TCP/IP networks.
Till now, SNMP has three versions: v1, v2c, and v3, described as below.
SNMPv1 uses community name authentication mechanism. The community name, a
string defined by an agent, acts like a password. The network management system can
visit the agent only by specifying its community name correctly. If the community name
carried in a SNMP packet is not authorized by the Gazelle S1512i-PWR, the packet will
be discarded.
Compatible with SNMPv1, SNMPv2c also uses community name authentication
mechanism. SNMPv2c supports more operation types, data types, and error codes, and
thus better identifying errors.
SNMPv3 uses User-based Security Model (USM) and View-based Access Control
Model (VACM) security mechanism. You can configure whether USM authentication is
enabled and whether encryption is enabled to provide higher security. USM
authentication mechanism allows authenticated senders and prevents unauthenticated
senders. Encryption is to encrypt packets transmitted between the network management
system and agents, thus preventing interception.
The Gazelle S1512i-PWR supports v1, v2c, and v3 of SNMP.
7.2 Maintenance methods
The Gazelle S1512i-PWR caters to users' requirements on operation and maintenance in the
aspects of hardware design and function configuration, thus providing users with powerful
maintenance performance.
The Gazelle S1512i-PWR supports diagnosing and testing failures regarding software and
hardware.
7.2.1 Ping
Packet Internet Grope (Ping) is the most widely used command for fault diagnosis and
troubleshooting. It is usually used to detect whether two hosts are connected or not. Ping is
achieved with ICMP echo packets. If an Echo Reply packet is sent back to the source address
during a valid period after the Echo Request packet is sent to the destination address, it
indicates the route between source and destination address is reachable.
