IETF 97 Hackathon ietf-alarms model implementation for yuma123 report

Description

ietf-alarms.yang is new standards track model proposal defined in draft-vallin-netmod-alarm-module-01. Lets implement the example the description text of the module has e.g. "...('link-alarm', 'GigabitEthernet0/25'),..."

The implementation is available at sourceforge and github yuma123 repositories.

Project goals

General/Reusable standalone module and C library code

• ietf-alarms.c - implementation of ietf-alarms.yang. Handles list management container registrations etc.
• alarmctrl.c,alarmctrl.h - device side alarm generation helper library (handles the registration of alarm entries). Simple 1 API function:

Usage example code

• interfaces-alarms.yang (NEW) - model defining link-alarm
• interfaces-alarms.c (NEW) - implementation of alarms-interfaces.yang based on interception of link-up and link-down
• interfaces-notifications.yang (NEW) - define link-up and link-down
• ietf-interfaces.c (MODIFIED) - implement support for link-up and link-down when the interfaces-notifications.yang is loaded

Usage

Starting the netconf server

/usr/sbin/netconfd --module=ietf-interfaces --module=interfaces-notifications --module=ietf-alarms@2016-10-27 --module=interfaces-alarms --superuser=vladimir

Device side: Simple 1 C function API

int alarmctrl_event(char* resource_str, char* alarm_type_id_str, char* alarm_type_qualifier_str, char* severity_str, char* alarm_text_str, int enable);

Example:

alarmctrl_event("/interfaces/interface[name=\'eth0\']", "link-alarm"/*alarm_type_id_str*/, ""/*alarm_type_qualifier_str*/, "major", "Probably someone disconnected something?!", down?1:0);

User side: yangcli

yangcli vladimir@localhost> xget /alarms
rpc-reply {
  data {
    alarms {
      alarm-list {
        number-of-alarms 2
        alarm /interfaces/interface[name='eth0'] alarms-if:link-alarm  {
          resource /interfaces/interface[name='eth0']
          alarm-type-id alarms-if:link-alarm
          alarm-type-qualifier 
          time-created 2016-11-13T05:04:11Z
          is-cleared false
          last-changed 2016-11-13T05:16:26Z
          perceived-severity major
        }
        alarm /interfaces/interface[name='eth1'] alarms-if:link-alarm  {
          resource /interfaces/interface[name='eth1']
          alarm-type-id alarms-if:link-alarm
          alarm-type-qualifier 
          time-created 2016-11-13T05:04:11Z
          is-cleared false
          last-changed 2016-11-13T05:16:26Z
          perceived-severity major
        }
      }
    }
  }
}

Feedback

• Looking good.
• Had to define link-down/link-up notifications. They are not standardized.