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 A  C  D  E  F  I  J  L  M  N  P  R  S  T  U

 

A

Activity Monitor    
data collection    12
graphs, viewing    12
overview
 

C

C Series Controllers    
boot messages, viewing    
C-Web interface
SRC CLI
interface information
monitoring    
C-Web interface
system date, viewing
system information, viewing    
C-Web interface
SRC CLI
C-Web interface    
monitoring options
conventions    
notice icons
text
currently active service sessions    
viewing on SAE    
SRC CLI
customer support    1
contacting JTAC
 

D

device drivers    
simulated, configuring    1
SRC CLI
viewing on SAE    
C-Web interface
SRC CLI
documentation    
comments on
 

E

equipment registration    
viewing on SAE    
C-Web interface
SRC CLI
event messages.     See logging    
 

F

filtered traffic statistics    12
 

I

interfaces    
information, viewing    
C-Web interface
SRC CLI
iptables Linux tool    
monitoring    
C-Web interface
SRC CLI
 

J

Juniper Networks database    
SNMP information, viewing    
C-Web interface    12
Juniper Networks database, viewing    
C-Web interface    12
 

L

license    
viewing on SAE    
C-Web interface
SRC CLI
licenses    
SNMP information, viewing    
C-Web interface    12
logging    
configuration statements
configuring component    
SRC CLI
file folders    
C-Web interface
file logging, configuring    
SRC CLI
log files    
rotation
messages    
categories
filters    12
format
severity levels
overview
system log, configuring    
SRC CLI
login registration    
viewing on SAE    
C-Web interface
SRC CLI
logrotate utility    
configuration statements
configuring    
SRC CLI
overview    
SRC CLI
 

M

manuals    
comments on
MIBs    
Juniper Networks, list
monitoring with SNMP agent
monitoring tools    
C-Web interface
overview
SRC CLI
 

N

network devices    
SNMP information, viewing    
C-Web interface    123
Network Time Protocol.     See NTP    
NIC (network information collector)    
agents, viewing    
C-Web interface
SRC CLI
hosts, viewing    
C-Web interface
SRC CLI
monitoring    
C-Web interface
SRC CLI
resolution data, troubleshooting
resolution data, viewing    
C-Web interface
SRC CLI    123
statistics, viewing    
C-Web interface
SRC CLI
notice icons
NTP (Network Time Protocol)    
monitoring    
C-Web interface
SRC CLI    12
statistics, viewing    
C-Web interface
SRC CLI
 

P

policies    
SNMP information, viewing    
C-Web interface
viewing on SAE    
C-Web interface
SRC CLI
portals, testing
 

R

RADIUS statistics    
SNMP information, viewing    
C-Web interface    12
redirect server    
statistics, viewing    
C-Web interface
SRC CLI
router interfaces    
viewing on SAE    
C-Web interface
SRC CLI
routing table, viewing    
C-Web interface
SRC CLI
 

S

SAE (service activation engine)    
configuration, viewing    
SRC CLI
directory blacklist, viewing    
C-Web interface
SRC CLI
SNMP information, viewing    
SRC CLI    12
SAE (service activation engine), configuring    
simulated router driver    
C-Web interface
SRC CLI
security certificates    
information, viewing    
C-Web interface
SRC CLI
server processes    
SNMP information, viewing    
C-Web interface
service sessions    
SNMP information, viewing    
C-Web interface
services    
viewing on SAE    
C-Web interface
SRC CLI
simulated router driver, configuring    
C-Web interface
SRC CLI
simulated subscribers    
logging in on SAE
logging out
SNMP agent    
MIBs
See also SNMP traps
viewing information on SAE    
C-Web interface    123456789101112
SRC CLI
SNMP alarm    
Boolean test
discontinuity check
existence test
overview
threshold test
SNMP chassis alarms    
battery voltage sensors
configuring
CPU core voltage sensors
CPU DIMM voltage sensors
CPU sensors
CPU temperature sensors
fan speed sensors
overview
system temperature sensors
voltage sensors
SNMP events    12
SNMP monitors    
alarms    1
Boolean test
existence test
threshold test    12
chassis alarms    123
configuring
events    12
overview
security name
statement hierarchy
SNMP traps    
alarm state transitions
configuring    12
event traps    
configuring
defined
list and description
notifications    
defined
overview
performance traps    
accounting
authentication
chassis
configuring
defined
JPS
NIC
policy engine
redirect server
router driver
SAE
SRC ACP
system management
SRC CLI, viewing    
C-Web interface
SRC components    
activity, monitoring
information, viewing    
C-Web interface
SRC CLI
storing log messages    
SRC CLI
subscriber session count by managed router    
viewing on SAE    
SRC CLI
subscriber sessions    
logging in
logging out
SNMP information, viewing    
C-Web interface
viewing on SAE    1
SRC CLI    123456
support, technical     See technical support    
system logging.     See logging    
 

T

technical support    
contacting JTAC
testing    
connection to remote host
text conventions defined
threads    
viewing on SAE    
C-Web interface
SRC
traps.     See SNMP traps    
troubleshooting    
tools
with log files
 

U

user permissions, viewing    
C-Web interface
users, viewing    
C-Web interface

SNMP Traps Overview

The SNMP agent provides network management systems with SNMP trap notifications in case of component failure or when critical resources are out of configurable limits. This information is captured in a Management Information Base (MIB).

The SNMP agent can be run on each SRC host. It can monitor any SRC process running on the host and is preconfigured to monitor SRC processes. Additionally, it provides detailed monitoring and configuration of SRC server components.

MIBs

The SNMP agent monitors MIB variables. Most variables measure the performance of the system. Some variables are counters, such as the saeLogins variable, which counts the total number of subscriber logins since startup. Some variables are gauges, and their numbers go up and down, such as the saeHeapUsed variable, which measures the Java Virtual Machine heap that is currently in use.

A MIB defines a trap type that is associated with many MIB variables. For traps based on counters, the SNMP agent periodically polls each specified variable. It takes the difference between the previous and current values of the variable and compares that difference with the threshold. If the difference has moved up across thresholds, the SNMP agent sends a trap raising an alarm (minor, major, or critical) for the highest threshold crossed to all configured receivers. If the difference has moved down across thresholds, the agent sends a trap clearing the alarm of the lowest threshold crossed.

You can configure the polling interval between samples. If you change the polling interval, also adjust the thresholds. For instance, if the critical threshold for SAE logins is 1,000 and the interval is 60 seconds, then a critical alarm is raised if there are more than 1,000 logins in 60 seconds. But if you change the interval to 600 seconds, then you would need to change the threshold to 10,000 to have the same meaning.

For traps based on gauges, the previous value is not needed; the current value is compared with the thresholds.

In the trap tables, there is a field named R/AV, where R means rate, and AV means absolute value. Rate is used for variables that are counters, and it measures the rate of change of the counter. Absolute value is used for variables that are gauges.

Configuration MIBs

The SRC software has a limited number of MIB variables that can be set, such as variables to shut down or start components.

MIB Structure

The SNMP agent MIB uses the following Juniper Networks MIBs:

  • Juniper-SDX-ACP-MIB—SRC ACP MIB
  • Juniper-SDX-CHASSIS-MIB—Chassis MIB (for C Series Controllers)
  • Juniper-SDX-DES-MIB—Directory eventing system MIB
  • Juniper-SDX-GW-MIB—Gateway applications MIB (includes the NIC MIB)
  • Juniper-SDX-JPS-MIB—JPS MIB
  • Juniper-SDX-LICENSE-MIB—Licensing MIB
  • Juniper-SDX-MIB—Main Juniper Networks SDX MIB
  • Juniper-SDX-MIBS—Collection of Juniper Networks SDX MIB modules
  • Juniper-SDX-POM-MIB—Policy management MIB
  • Juniper-SDX-REDIRECTOR-MIB—Redirector MIB
  • Juniper-SDX-SAE-MIB—SAE MIB
  • Juniper-SDX-TC-MIB—Textual conventions MIB
  • Juniper-SDX-TRAP-MIB—SRC trap definition MIB
  • Juniper-UNI-SMI—Base SMI MIB

MIB Location

The MIBs are located on the Juniper Networks website at

https://www.juniper.net/techpubs/software/management/src

Traps

Traps are individual events that the SNMP agent can monitor, such as the number of timeouts or errors that have occurred or connections that have opened or closed. There are two types of traps:

  • Performance traps—Traps that poll MIB variables associated with the trap to determine whether a variable has crossed configured thresholds. If the variable crosses a threshold, an alarm is triggered and a trap is sent to the list of configured receivers.
  • Event traps—Traps that are sent when an event occurs; for example, when a connection is established or closed.

SNMP Traps and Informs

SNMP notifications can be sent as traps or inform requests. SNMP traps are unconfirmed notifications. SNMP informs are confirmed notifications.

SNMP traps are defined in either standard or enterprise-specific MIBs. The standard and enterprise-specific traps are compiled into the network management software.

With traps, the receiver does not send any acknowledgment when it receives a trap and the sender cannot determine if the trap was received. To increase reliability, SNMP informs are supported in SNMPv3. With an inform, the receiver acknowledges the message with a response.

For information on system logging severity levels for SNMP traps, see Categories and Severity Levels for Event Messages.

Related Documentation

Modified: 2015-07-22