A l2cpPortDownEvent trap signifies that the SNMPv2 entity, acting in an agent role, has detected that the adslIfOperStatus object for one of its communication links is about to enter the down state. This trap is used in the L2CP in order to signal port down. This is an internally used notification. Valid from: EDA 2.2 MA1 Parameters 1: Managed object class IP DSLAM Port 2: Managed object ID (MAC + PortNo) 3: Sequence number (Alarm sequence number) 4: Perceived severity Warning 5: Event time (Timestamp is retrieved from a SNTP server) 6: Event type Other 7: Probable cause Other 8: Partition ID (ID of the partition) 9: Access Loop Circuit ID (Identifier of the port) 10: Transmission system { ADSL1, ADSL2, ADSL2plus, VDSL1, VDSL2, SDSL } 11: Actual Data Rate Upstream ITU-T G.997, section 7.5.2.1 12: Actual Data Rate Downstream ITU-T G.997, section 7.5.2.1 13: DSL line state { IDLE or SILENT } 14: Trap reason { CONDITIONS_CHANGED, EVENT_FORCED, L2CP_ENABLED or L2CP_DISABLED }