Specifications

7-2
Cisco AS5x00 Case Study for Basic IP Modem Services
11/24/1999
Section 7 Enabling Management Protocols: NTP, SNMP, and Syslog
Understanding Network Management Basics
Understanding Network Management Basics
Figure 7-1 shows a logical view of how management protocols interact between the Cisco IOS (client)
and the network element management server. The dashed lines indicated different protocols and
functions.

NTP synchronizes time between network devices.

The SNMP element manager (EM) receives SNMP traps from the Cisco IOS. A unidirectional,
unsolicited SNMP datagram. The SNMP manager uses SNMP to query variables and set
configurations.

The Cisco IOS sends logging messages to a syslog daemon.
Figure 7-1 NTP, SNMP, and Syslog Interactions
Table 7-1 provides the RFCs and URLs for the management protocols described in this section:
NTP
synchronization
Cisco IOS
Element
manager
Syslog
SNMP
24527
Table 7-1 Management Protocol RFCs
Management
Protocol RFC URL
SNMP RFC 1157 http://www.ietf.org/rfc/rfc1157.txt
NTP RFC 1305 http://www.ietf.org/rfc/rfc1305.txt