CeRedunType

• Base type Enumeration

Defines the following group redundancy types: other(1) Indicates a type of redundancy which doesn't fall into any other listed category. yCable(2) A form of redundancy in which signals from a common line are connected to ports on two redundant members using a special Y-shaped splitter/combiner cable. The receive signals are split and fed to the receive ports on each redundant member. The transmit signals are combined from the transmit ports on each member. However, only the active redundant member transmits a signal, while the standby member suppresses sending a signal into the Y-combiner. aps(3) Automatic Protection Switching. A form of redundancy using redundant lines with one connected to the working port on the primary member and the other connected to the protection port on the secondary member. APS redundancy protects against line (or fiber) failures in addition to protecting against port module hardware failures. featureCard(4) The featureCard option is used when the module does not have external line interfaces. Examples are modules which provide packet processing, additional memory or even fans or power supplies. externalSwitch(5) A form of redundancy similar to yCable but using an external switch to select or direct the receive or transmit signals from a common line to ports on redundant members. Additional control (not provided in this general MIB) may be necessary in order to control and monitor the external switch. slotPair(6) Some platforms require the user to configure a slot-pair group in order to allow internal signals to be bridged to redundant linecards in the slot-pair. But redundancy groups would also need to be configured for contained entities, such as ports. Switchovers should take place independently for each contained entity (e.g. port). The slotPair groups support only basic group and member configuration including the primary/secondary designation. Switchovers may only be supported for the contained entity. The primary/secondary roles of contained group members must match the primary/secondary role of the containing entity. cmts(7) redundancy is provided for Cable Modem Termination Systems.