Brocade BigIron RX Series Configuration Guide - Manual (Page 624)

546 BigIron RX Series Configuration Guide
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Configuring MCT
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If the keepalive VLAN is not configured, both the cluster nodes become the master.
To configure the loose mode, enter the following command.
BigIron RX(config-cluster-TOR)# client-isolation loose
Syntax: [no] client-isolation loose
• Strict mode - When the CCP goes down, the client interfaces on both the cluster nodes are
administratively shut down. In this mode, the client is completely isolated from the network if
the CCP is inactive.
To configure the strict mode, enter the following command.
BigIron RX(config-cluster-TOR)# client-isolation strict
Syntax: [no] client-isolation strict
Shutting down all the client interfaces
When performing a hitless-upgrade operation, use the client-interfaces shutdown command to
shut down all the client interfaces in the cluster. The operation results in failover of traffic to the
cluster peer.
To shut down all the local client interfaces in the cluster, enter the following command.
BigIron RX(config-cluster-TOR)# client-interfaces shutdown
Syntax: [no] client-interfaces shutdown
The no form of the command turns on all the client interfaces that are shut down.
Configuring a Keepalive VLAN
The CCRR message is used to exchange information between the peers. When the CCP is up, the
CCRR messages are sent over the CCP. When the CCP is down, you can use the keep-alive-vlan
command under the cluster context to periodically send the CCRR messages over the keepalive
VLAN. An optional keepalive VLAN can be configured to start transverse CCRR messages when the
CCP fails due to the ICL link failure. Only one VLAN can be configured as a keepalive VLAN. The
keepalive VLAN can be tagged or untagged. The keepalive VLAN can be a non-member VLAN or
member VLAN, but cannot be a session VLAN.
To configure a keepalive VLAN, enter the following command.
BigIron RX(config-cluster-TOR)# keep-alive-vlan 10
Syntax: [no] keep-alive-vlan <vlan-id>
The <vlan-id> variable specifies the VLAN ID. Possible values are from 1 through 4090.
When the CCP is down:
• If the keepalive VLAN is configured, then the CCRR messages are sent periodically for every 1
second over that VLAN and the master and slave are selected based on following criteria:
- If the CCEPs of one node are up and other node is down, then the node with local CCEPs
down becomes the slave.
- If the CCEPs of all the nodes are up or down, the node with a higher RBridge ID becomes
the slave.
• If the packets are not received from the peer for a period of 3 seconds, then the peer is
considered to be down.