Configuration Overview
Page 14 7210 SAS M, T, X, R6, R12, Mxp Interface Configu-
ration Guide
Equipped Type (if different) State State
-------------------------------------------------------------------------------
8 (not provisioned) up unprovisioned
imm-sas-b-4sfp+
A cpm-sf-sas-R12 up up/active
B cpm-sf-sas-R12 up up/standby
===============================================================================
A:A6144909484>show#
MDAs
The 7210 SAS-R6, R12, 7210 SAS-X, and 7210 SAS-T platforms, as explained in the previous
section, do not support any physical removable MDAs. Software uses the concept of MDA
internally (as a logical entity) to represent the ports and the MDA type is either auto-provisioned
on bootup or auto-provisioned automatically based on the configured IMM type.
On 7210 SAS-M, as explained in the previous section, in addition to the fixed ports, a expansion
slot is available. It is represented as a physical MDA and needs to be provisioned. The section
below talks about provisioning of MDAs and is applicable only to those platforms where physical
MDAs are supported.
A chassis slot and card type must be specified and provisioned before an MDA can be
preprovisioned. An MDA is provisioned when a type designated from the allowed MDA types is
inserted. A preprovisioned MDA slot can remain empty without conflicting with populated slots.
Once installed and enabled, the system verifies that the installed MDA type matches the
configured parameters. If the parameters do not match, the MDA remains offline. An MDA is
provisioned when a type designated from the allowed MDA type is inserted. A preprovisioned
MDA slot can remain empty without conflicting with the populated slots.
Provisioning of MDA on 7210 SAS-M
Provisioning guidelines for MDA used with 7210 SAS-M:
• The device rejects the insertion of a CES card if the slot is provisioned for a 2* 10G MDA
and vice versa.
• If a 2*10G MDA provisioned, it ensures that the BOF parameter "no-service-ports" is
configured to specify two ethernet ports.
• Only on 7210 SAS-M 24F variant, the no-service-ports BOF parameter is not available for
use.
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