7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
Configuration Guide
Virtual Chassis
Edition: 01 3HE 16132 AAAB TQZZA 227
• vc-stack-name
Configure the boot loader parameter vc-stack-name on the active CPM-IMM
node to identify the VC of which the nodes are members. A node configured with
a vc-stack-name of “my-stack” is a member node of the VC “my-stack”. The
system-name variable in the configure system name command can be reused
as the boot loader vc-stack-name value. A node cannot be added to a VC if its
vc-stack-name value does not match that of the current active CPM-IMM.
• vc-stack-node-type
Specify the node role as either cpm-imm or imm-only using the boot loader
BOF parameter vc-stack-node-type. The default setting is imm-only. Users
need to modify the default only for nodes that can take on the role of CPM by
changing the setting to cpm-imm. The BOF parameter does not need to be
modified for nodes whose role is IMM. Users can configure two nodes in the
stack to be cpm-imm nodes.
In addition, to operate the VC users must also configure the following commands in
the TiMOS BOF context:
• vc-stack-node
Use the command bof>vc-stack-node {cpmA | cpmB} slot-num slot-num
mac-addr mac-address to configure the slot number and the MAC address of
the CPM nodes. The VC stack node cpmA and cpmB parameters can also be
configured through the boot loader BOF menu prompts.
The slot number identifies a specific node in the VC (similar to the slot ID of a
card in a chassis-based system) and is used in addressing service objects
created during provisioning. The slot number also is used to light up the correct
LED on the front-panel of the node, enabling operators to see which slot is
configured with the VC node (the stack LED also denotes that the node is part
of a VC and is fully functional). The slot number of the active and standby CPM-
IMMs can be set to any number from 1 to 8, as long as it is not in use by another
VC member node. An arbitration process during the boot phase ensures that
one of the CPM nodes is the active CPM and the other is the standby CPM.
The MAC address must match the base MAC address printed on the label of the
chassis.
• eth-mgt-address
Note: Before these boot loader parameters are configured, verity that the chassis-role
must be set to standalone-vc.