Control plane resource management

SR Linux allows you to set thresholds for monitoring the following control plane resources:

• mpls-next-hops
• tunnels This refers to all tunnels (MPLS, IP-in-IP, GRE, VXLAN).
• originating-ip-in-ip-tunnels
• originating-ip-gre-tunnels
• vp-lag-groups
• protect-groups

For each of these resources, you can specify an upper-threshold-set value (a percentage from 0-100) and an upper-threshold-clear value (a percentage from 0-100); these values apply system-wide.

• The upper-threshold-set value sets the threshold that triggers the generation of a WARNING log and the setting of used-upper-threshold-exceeded to true whenever the utilization of the resource reaches this value in a rising direction.

• The upper-threshold-clear value sets the threshold that triggers the generation of a NOTICE log and the setting of used-upper-threshold-exceeded to false whenever the utilization of the resource reaches this value in a falling direction.

--{ * candidate shared default }--[  ]--
# info system utilization
    system {
        utilization {
            resource ip-gre-tunnels {
            }
            resource tunnels {
                upper-threshold-set 75
                upper-threshold-clear 60
            }
        }
    }

--{ + running }--[  ]--
# info from state system utilization resource *
    system {
        utilization {
            resource ip-gre-tunnels {
                upper-threshold-set 75
                upper-threshold-clear 60
                used-percent 0
                used-entries 0
                free-entries 2048
                used-upper-threshold-exceeded false
            }
            resource ip-in-ip-tunnels {
                upper-threshold-set 90
                upper-threshold-clear 70
                used-percent 0
                used-entries 0
                free-entries 4096
                used-upper-threshold-exceeded false
            }
            resource mpls-next-hops {
                upper-threshold-set 90
                upper-threshold-clear 70
                used-percent 0
                used-entries 0
                free-entries 65536
                used-upper-threshold-exceeded false
            }
            resource protect-groups {
                upper-threshold-set 90
                upper-threshold-clear 70
                used-percent 0
                used-entries 0
                free-entries 4096
                used-upper-threshold-exceeded false
            }
            resource tunnels {
                upper-threshold-set 90
                upper-threshold-clear 70
                used-percent 0
                used-entries 0
                free-entries 16000
                used-upper-threshold-exceeded false
            }
        }
    }