Configuring Health Check - Lenovo Flex System Fabric CN4093 Application Manual

Configuring Health Check

1. Configure a management interface for the switch.
2. Specify the IPv4 or IPv6 address of the VLAG Peer:
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CN4093 Application Guide for N/OS 8.4
We strongly recommend that you configure the CN4093 to check the health status
of its VLAG peer. Although the operational status of the VLAG peer is generally
determined via the ISL connection, configuring a network health check provides
an alternate means to check peer status in case the ISL links fail. Use an
independent link between the VLAG switches to configure health check.
Note: Configuring health check on an ISL VLAN interface or on a VLAG data port
may impact the accuracy of the health check status.
Note: If the switch does not have a dedicated management interface, configure a
VLAN for the health check interface. The health check interface can be configured
with an IPv4 or IPv6 address:
CN 4093(config)# interface ip 127
CN 4093(config-ip-if)# ip address 10.10.10.1 255.255.255.0
CN 4093(config-ip-if)# enable
CN 4093(config-ip-if)# exit
Note: Configure a similar interface on VLAG Peer 2. For example, use IP address
10.10.10.2.
CN 4093(config)# vlag hlthchk peer-ip 10.10.10.2
Note: For VLAG Peer 2, the management interface would be configured as
10.10.10.2, and the health check would be configured for 10.10.10.1, pointing back
to VLAG Peer 1.
VLAG supports either IPv4 or IPv6 health check addresses at one time.
Configuring an IPv4 health check address, will set any IPv6 health check address
in the VLAG to 0, and vice‐versa.