This guide uses the term ‟preprovisioning” in the context of preparing or preconfiguring entities such as chassis slots, line cards (for example, Switch Fabric and Control Plane Module (SF/CPM) and Integrated Media Modules (IMMs)), and media dependent adapters (MDAs), ports, and interfaces, before initialization. These entities can be installed but not enabled. When the entity is in a no shutdown state (administratively enabled), the entity is considered to be provisioned.
The 7210 SAS-T, 7210 SAS-Mxp, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE and its variants, are platforms with a fixed port configuration, and no expansion slots. 7210 SAS software inherits the concept of CPM, IOM, and MDA from the SR OS to represent the hardware logically. These logical cards are fixed and are not removable. The software creates two (2) logical cards to represent the CPM and IOM; the cards are preprovisioned on bootup. The IOM card is modeled with a single MDA that is a logical entity and represents the fixed ports on the system. The MDA is auto-provisioned on bootup and does not need to be provisioned. Ports and interfaces can also be preprovisioned.
The 7210 SAS-R6 is a chassis-based platforms that has 6 IMM slots that can accept media cards used for service delivery and 2 CPM slots that provide control-plane redundancy. The chassis slots must be provisioned to accept a specific line card and set the relevant configurations before the equipment is actually installed. The preprovisioning ability allows you to plan your configurations as well as monitor and manage your router hardware inventory. Ports and interfaces can also be preprovisioned. When the functionality is needed, the cards can be inserted into the appropriate chassis slots when required.
The 7210 SAS-R12 is a chassis-based platforms that have 12 IMM slots that can accept media cards used for service delivery and 2 CPM slots that provide control-plane redundancy. The chassis slots must be provisioned to accept a specific line card and set the relevant configurations before the equipment is actually installed. The preprovisioning ability allows you to plan your configurations as well as monitor and manage your router hardware inventory. Ports and interfaces can also be preprovisioned. When the functionality is needed, the cards can be inserted into the appropriate chassis slots when required.