30.1.9 Setting parameters

(1) Disabling Ring Protocol function

Points to note

Specify commands to disable the Ring Protocol functionality. Note that when the Ring Protocol functionality is disabled while running, loops might occur in the network configuration. Therefore, before disabling the Ring Protocol functionality, use the shutdown command or other means to stop any interfaces running the Ring Protocol functionality.

Command examples

1. (config)# axrp 1

   (config-axrp)# disable

   Switches to the axrp configuration mode for corresponding ring ID 1. The disable command is executed to disable the Ring Protocol functionality.

(2) Health check frame transmission interval

Points to note

Set the health-check frame sending interval for the master node or terminal nodes on a shared link non-monitoring ring. This setting is ignored if performed for other nodes.

Command examples

1. (config)# axrp 1

   (config-axrp)# health-check interval 500

   Sets the sending interval for health check frames to 500 ms.

Notes

For a multi-ring configuration, set the same value for the health-check frame sending interval in the same ring for the master node and the terminal nodes of shared link non-monitoring rings. If these values are different, fault detection will not be performed properly.

(3) Health check frame receive wait protection time

Points to note

Set the health-check frame reception hold time for the master node. This setting is ignored if performed for other nodes. The reception hold time can be changed to adjust the time needed to detect faults.

Set the reception hold time (value set using the health-check holdtime command) to a value greater than the sending interval (value set using the health-check interval command).

Command examples

1. (config)# axrp 1

   (config-axrp)# health-check holdtime 1500

   Sets the reception hold time for health check frames to 1500 ms.

(4) Flash control frame receive wait protection time

Points to note

Set the flush-control frame reception hold time for transit nodes. This setting is ignored if performed for other nodes. The flush-control frame reception hold time for transit nodes (value set using the forwarding-shift-time command) must be a value greater than the sending interval for health check frames for the master node (value set by the health-check interval command). If the ring port of a transit node is changed to the forwarding status before the master node detects restoration from an incorrect setting, a loop might occur temporarily.

Command examples

1. (config)# axrp 1

   (config-axrp)# forwarding-shift-time 100

   Sets the reception hold time for flush control frames to 100 seconds.

Notes

If the adjacent node is a stacked master node, set the receive hold time for flush control frames to 60 seconds or longer.

(5) Configuring the Primary Port

Points to note

Set the primary port for a master node. Specify an interface with a ring port (using the axrp-ring-port command) specified for the master node. Note that operation will not be performed regardless of this setting if the Switch is the terminal of a shared link non-monitoring ring. Normally, because primary ports are automatically assigned, when a setting or change is performed using the axrp-primary-port command to switch the primary port, ring operation is stopped.

Command examples

1. (config)# interface port-channel 10

   (config-if)# axrp-primary-port 1 vlan-group 1

   Switches to the port channel interface configuration mode, sets the corresponding interface for ring ID 1, and sets the primary port for VLAN group ID 1.

(6) Enabling the path switchback suppression facility and setting the suppression time

Points to note

Set the time to suppress path switch-back operation after fault restoration has been detected on the master node. Note that when infinity is specified for the suppression time, path switch-back operation is suppressed until the clear axrp preempt-delay operation command is executed.

Command examples

1. (config)# axrp 1

   (config-axrp)# preempt-delay infinity

   Switches to configuration mode for ring ID 1, and sets the path switch-back suppression time to infinity.