CISCO-IEEE8021-CFM-EXT-MIB
A MIB module for extending the IEEE8021-CFM-MIB and IEEE8021-CFM-V2-MIB to add objects which provide additional information about Connectivity Fault management(CFM) not available in IEEE8021-CFM-MIB and IEEE8021-CFM-V2-MIB. Glossary: Connectivity Fault Management (CFM): Connectivity Fault Management comprises capabilities for detecting, verifying, and isolating connectivity failures in Virtual Bridged Local Area Networks. Maintenance Domain (MD): The network or the part of the network for which faults in connectivity can be managed. Service Access Point (SAP): The point at which a service is offered. Domain Service Access Point (DoSAP): A member of a set of SAPs at which a Maintenance Domain is capable of offering connectivity to systems outside the Maintenance Domain. Intermediate Service Access Points (ISAP): A SAP, interior to a Maintenance Domain, through which frames can pass in transit from DoSAP to DoSAP. Maintenance association End Point (MEP): An actively managed CFM entity, associated with a specific domain service access point of a service instance, which can generate and receive CFM PDUs and track any responses. Maintenance Association (MA): A set of MEPs, each configured with the same MAID and MD Level, established to verify the integrity of a single service instance. Maintenance domain Intermediate Point (MIP): A CFM entity consisting of two MHFs. A MHF is a CFM entity, associated with a single Maintenance Domain, and thus with a single MD Level and a set of VIDs, that cannot generate CFM PDUs, but only in response to received CFM PDUs. Continuity Check Message (CCM): A multicast CFM PDU transmitted periodically by a MEP in order to ensure continuity over the MA to which the transmitting MEP belongs. No reply is sent by any MP in response to receiving a CCM. Continuity Check Initiator (CCI): A state machine. Once it starts, CCMs will be generated. Linktrace Message (LTM): A CFM PDU initiated by a MEP to trace a path to a target MAC address, forwarded from MIP to MIP, up to the point at which the LTM reaches its target, a MEP, or can no longer be forwarded. Linktrace Reply (LTR): A unicast CFM PDU sent by an MP to a MEP, in response to receiving an LTM from that MEP. Content Addressable memory (CAM): The CAM table is consulted to make the frame forwarding decision. On Ethernet networks that transmit IP, switches learn MAC addresses from the source address of ethernet frames on the interfaces.