Nokia 7210 SAS-Mxp - Subsequent Reboot of the Stack (with Correct BOF Present); Replacing and Upgrading a Node in a VC

7210 SAS-MXP, R6, R12, S, SX, T BASIC SYSTEM
CONFIGURATION GUIDE RELEASE 22.9.R1
Virtual chassis
• If both islands have the same number of nodes, the node that was the standby CPM-IMM node before
the failure occurred becomes the active CPM-IMM. All the nodes in the island with the previously active
CPM-IMM node (that is, active before the failure) will reboot. While rebooting, if the CPM-IMM node
is unable to contact the current active node in boot.tim, they will reboot again. The IMM-only node will
reboot and wait to hear from the active CPM (basically, it will wait for the operator to fix the problem and
join the islands).
CPM-IMM nodes store information to detect whether a reboot is occurring due to a VC split. If a split
has occurred, the node attempts to connect to the current active CPM-IMM. When it talks to the active
CPM-IMM and boots up successfully, it clears the stored VC split information. If the CPM-IMM node is
unable to talk to the current active CPM node, it will reboot and start the process all over again until it can
successfully talk to an active CPM.
Users can clear the VC split information stored in the database and stop the reboot process by interrupting
the boot process and providing a Yes response at the boot loader prompt to clear the VC split information.
5.9 Virtual chassis command reference
5.9.1 Command hierarchies
5.9.1.1 Configuration commands
Note:
See BOF command reference for more information about BOF commands.
bof
- vc-stack-node {cpmA | cpmB} slot-num slot-num mac-addr mac-address
- no vc-stack-node {cpmA | cpmB}
5.9.2 Command descriptions
5.9.2.1 Configuration commands
5.9.2.1.1 Standalone virtual chassis (VC) commands
vc-stack-node
Syntax
vc-stack-node {cpmA | cpmB} slot-num slot-num mac-addr mac-address
no vc-stack-node {cpmA | cpmB}
3HE 18197 AAAB TQZZA
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