Virtual Chassis SNMP Traps
Junos OS supports the use of SNMP traps to monitor the routers, switches, and other devices in your network.
MX Virtual Chassis supports the following enterprise-specific traps:
jnxVccpPortUpjnxVccpPortDown
An unexpected SNMP trap of jnxVccpPortDown with a jnxVirtualChassisPortOperStatus value of 2 (down) should be
treated as a critical notification, as it indicates one or more of
the VCP-interfaces has undergone a failure, and may result in degraded
performance or decreased resiliency to further errors until the status
is cleared by a jnxVccpPortUp with jnxVirtualChassisPortOperStatus value equal to 1 (up).
A detailed description may be found in the MIB, located https://www.juniper.net/documentation/en_US/junos15.1/topics/reference/mibs/mib-jnx-virtualchassis.txt.