Specifications

4-2
Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide
DOC-7810814=
Chapter 4 Administration
Enabling Management Protocols: NTP, SNMP, and Syslog
Enabling Management Protocols: NTP, SNMP, and Syslog
This section describes how to enable basic management protocols on a Cisco AS5800 as part of a dial
access service. It does not however, describe how to integrate the Cisco IOS software with NT or UNIX
servers. Management protocols are described only from the perspective of the Cisco IOS software.
Understanding Network Management Basics
Figure 4-1 shows a logical perspective of how management protocols interact between the Cisco IOS
software (client) and a network element management server. Dashed lines represent different protocols
and functions.
• NTP synchronizes time between network devices.
• The SNMP element manager (EM) receives SNMP traps from the Cisco IOS software. The SNMP
manager uses SNMP to query variables and set configurations.
• The Cisco IOS software sends logging messages to a syslog daemon.
Table 4-1 RMON Groups
RMON Group Description
Alarm Periodic statistical sampling from event generated variables in the probe that compares
configured thresholds.
Events Controls the generation and notification of events from this device.
Filters Enables packet matching by equation filtering to form data streams that may be
captured or generate events.
History Records and stores periodic statistical samples, number of samples, and items sampled
from a network.
Host Contains statistics associated with each discovered network host.
HostTopN Creates tables describing hosts that top a list ordered by one of their rate-based
statistics.
Matrix Stores new conversation statistics detected on source and destination device.
Packet
Capture
Enables packet capturing after it flows through a channel.
Statistics Contains probe calculated statistics for each interface monitored on device.