Host Unreachable Priority Event; Route Unknown Priority Event - Alcatel-Lucent 7710 SR OS Configuration Manual

Table 6: LAG Events (Continued)
Time LAG Port State
202 Seven ports down
206 All ports up
207 All ports up

Host Unreachable Priority Event

The host unreachable priority event creates a continuous ping task that is used to test connectivity
to a remote host. The path to the remote host and the remote host itself must be capable and
configured to accept ICMP echo request and replies for the ping to be successful.
The ping task is controlled by interval and size parameters that define how often the ICMP request
messages are transmitted and the size of each message. A historical missing reply parameter
defines when the ping destination is considered unreachable.
When the host is unreachable, the host unreachable priority event is considered true or set. When
the host is reachable, the host unreachable priority event is considered false or cleared.

Route Unknown Priority Event

The route unknown priority event defines a task that monitors the existence of a given route prefix
in the system's routing table.
The route monitoring task can be constrained by a condition that allows a prefix that is less
specific than the defined prefix to be considered as a match. The source protocol can be defined to
indicate the protocol the installed route must be populated from. To further define match criteria
when multiple instances of the route prefix exist, an optional next hop parameter can be defined.
7710 SR OS Router Configuration Guide
Parameter
Event State Set - 7 ports down
Event Threshold 6 ports down
Hold Set Timer 5 seconds
Event State Set - 7 ports down
Event Threshold 6 ports down
Hold Set Timer 1 second
Event State Cleared - All ports up
Event Threshold None
Hold Set Timer Expired
State
Changed due to increase
Set to hold-set due to threshold increase
Event cleared
VRRP
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