Configuration overview

Note:

This document uses the term ‟preprovisioning” in the context of preparing or preconfiguring entities such as chassis slots, cards, Media Dependent Adapters (MDAs), ports, and interfaces, before initialization. These entities can be installed while remaining administratively disabled (shutdown). When the entity is in a no shutdown state (administratively enabled), then the entity is considered to be provisioned.
Unless specified otherwise, the term ‟card” is used generically to refer to Input Output Modules (IOMs) .

Nokia routers provide the capability to configure chassis slots to accept specific card and MDA types and set the relevant configurations before the equipment is actually installed. The preprovisioning capability 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.

Chassis slots and card slots

The 7705 SAR-1 is a fixed chassis, that is, the system hardware is permanently built into the chassis and has preassigned parameters. The IOM of the 7705 SAR-1 is a virtual entity, defined in software. The I/O ports are grouped and virtualized into slots (MDAs) for convenience of assignment. As a result of this design, the CLI identifiers for the IOM and MDAs are preset. The fixed configuration of the 7705 SAR-1 restricts the router to port-level provisioning; however, the IOM and MDA numbering must still be specified in CLI commands.

The 7705 SAR-1 replaces the CPM with an integrated control and switching functional block that does not need to be provisioned. It is displayed in the CLI as CPM A.

The 7705 SAR-1 is provisioned at the factory with the following permanent configuration:

CPM card type in slot A is cpm-sar
IOM card type in slot 1 is iom-sarshow
MDA types:
- Slot 1/1 is m10-sfp++6-sfp
- Slot 1/2 is isa-tunnel-v
- Slot 1/3 is isa-bb-v

===============================================================================
Card State
===============================================================================
Slot/  Provisioned Type                  Admin Operational   Num   Num Comments
Id         Equipped Type (if different)  State State         Ports MDA
-------------------------------------------------------------------------------
1      iom-sar                           up    up                  3
1/1    m10-sfp++6-sfp                    up    up            16
1/2    isa-tunnel-v                      up    up            2
           isa-ms-v
1/3    isa-bb-v                          up    up            7
           isa-ms-v
A      cpm-sar                           up    up                      Active
===============================================================================

IMMs and MDAs

MDAs are pluggable adapter cards that provide physical interface connectivity. MDAs are available in a variety of interface and density configurations. MDA modules differ by chassis. See the individual chassis guide and the individual MDA installation guides for more information about specific MDAs.

Integrated Media Modules (IMMs) are designed with fixed integrated media cards, which may require provisioning, depending on the generation of the IMM.

The 7705 SAR-1 does not support removable MDAs. The software uses a the concept of MDA internally (as a logical entity) to represent the ports on the chassis. The MDA type is auto-provisioned on startup, and the MDA slot is always 1.

In all cases, the card slot and IOM or IMM card-type must be provisioned before an MDA can be provisioned. A preprovisioned MDA slot can remain empty without interfering with services on populated equipment. When an MDA is installed and enabled, the system verifies that the MDA type matches the provisioned type. If the command options do not match, the MDA remains offline.