Áú»¢¶Ä²©

1 Standardized templates for network devices

Overview

In order to provide monitoring for network devices such as switches and routers, we have created two so-called models: for the network device itself (its chassis basically) and for network interface.

Since Áú»¢¶Ä²© 3.4 templates for many families of network devices are provided. All templates cover (where possible to get these items from the device):

• Chassis fault monitoring (power supplies, fans and temperature, overall status)
• Chassis performance monitoring (CPU and memory items)
• Chassis inventory collection (serial numbers, model name, firmware version)
• Network interface monitoring with IF-MIB and EtherLike-MIB (interface status, interface traffic load, duplex status for Ethernet)

These templates are available:

• In new installations - in Configuration ¡ú Templates;
• If you are upgrading from previous versions, you can find these templates in the templates directory of the downloaded latest Áú»¢¶Ä²© version. While in Configuration ¡ú Templates you can import them manually from this directory.

If you are importing the new out-of-the-box templates, you may want to also update the @Network interfaces for discovery global regular expression to:

Result is FALSE: ^Software Loopback Interface
       Result is FALSE: ^(In)?[lL]oop[bB]ack[0-9._]*$
       Result is FALSE: ^NULL[0-9.]*$
       Result is FALSE: ^[lL]o[0-9.]*$
       Result is FALSE: ^[sS]ystem$
       Result is FALSE: ^Nu[0-9.]*$

to filter out loopbacks and null interfaces on most systems.

Devices

List of device families for which templates are available:

Template design

Templates were designed with the following in mind:

• User macros are used as much as possible so triggers can be tuned by the user
• Low-level discovery is used as much as possible to minimize the number of unsuppported items
• Templates are provided for SNMPv2. SNMPv1 is used if it is known that the majority of devices don't support SNMPv2.
• All templates depend on Template ICMP Ping so all devices are also checked by ICMP
• Items don't use any MIBs - SNMP OIDs are used in items and low-level discoveries. So it's not necessary to load any MIBs into Áú»¢¶Ä²© for templates to work.
• Loopback network interfaces are filtered when discovering as well as interfaces with ifAdminStatus = down(2)
• 64bit counters are used from IF-MIB::ifXTable where possible. If it is not supported, default 32bit counters are used instead.
• All discovered network interfaces have a trigger that controls its operational status(link).
  • If you do no want to monitor this condition for a specific interface create a user macro with context with the value 0. For example:

where Gi0/0 is {#IFNAME}. That way the trigger is not used any more for this specific interface.

  * You can also change the default behaviour for all triggers not to fire and activate this trigger only to limited number of interfaces like uplinks

Tags

• Performance ¨C device family MIBs provide a way to monitor CPU and memory items;
• Fault - device family MIBs provide a way to monitor at least one temperature sensor;
• Inventory ¨C device family MIBs provide a way to collect at least the device serial number and model name;
• Certified ¨C all three main categories above are covered.