Nokia 7210 SAS-Mxp - Node Roles in the VC

7210 SAS-MXP, R6, R12, S, SX, T BASIC SYSTEM
CONFIGURATION GUIDE RELEASE 22.9.R1
Virtual chassis
Table 24: Supported node combinations for CPM-IMM configuration
CPM-A CPM-B CPM-IMM
7210 SAS-Sx 1/10GE (any variant) 7210 SAS-S 1/10GE (any variant) No
7210 SAS-S 1/10GE (any variant) 7210 SAS-S 1/10GE (any variant) Yes
7210 SAS-Sx 1/10GE (any variant) 7210 SAS-Sx 1/10GE (any variant) Yes
5.2 Provisioning and booting up the VC in standalone mode
The 7210 SAS supports manual bootup for a VC.
To provision a node to belong to a VC, it must be configured with the chassis-role parameter set to
standalone-vc. The chassis-role parameter is a BOF parameter in the boot loader context.
Of the two nodes configured as CPM-IMM, one becomes the active CPM and the other becomes the
standby CPM, ready to move to the active role should the current active CPM fail.The node designated
as the active CPM uses the configuration file available locally or remotely at boot up. It distributes the
configuration to all members of the VC. Setting the chassis-role parameter to standalone-vc ensures that
the member nodes of the VC do not use any local configuration at boot up.
The IMM-only node configuration and the service configuration is always done on the active CPM. The
active CPM-IMM node distributes the configuration information to other VC members when the user has
saved the TiMOS configuration.The IMM-only nodes receive the service configuration from the active CPM
through VC management messages, while the standby CPM receives the service configuration through the
high availability (HA) reconcile mechanism.
The active CPM-IMM also sends out VC management packets with VC configuration information to IMM-
only member nodes. The IMM-only nodes use the management packets to obtain the VC configuration and
join the VC.
The VC requires a single IP address and MAC address to be managed as a single entity. The current
active CPM owns the IP address and responds to all the messages sent to this IP address and uses the
MAC address as required (for example, for ARP).
The show>chassis command displays power, fan, and alarm statuses of the VC by consolidating the
statuses of all cards provisioned in the VC. The show>card command displays power, fan, and alarm
statuses for individual cards.
See Procedure to boot in the standalone-VC mode for information about booting the 7210 SAS-Sx/S
1/10GE in standalone-VC mode, including the booting sequenced, BOF prompts, and sample logs.
5.2.1 Required BOF parameters
When the node is shipped from the factory, the chassis-role parameter in the boot loader file is set to
factory-default. For the node to be part of a VC, the user must explicitly set the chassis-role parameter in
the boot loader to standalone-vc.
The user must also configure the following boot loader parameters to operate the VC:
3HE 18197 AAAB TQZZA
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