Redundant Management Interface provides fault tolerant management access to remote SLX boxes by providing multiple management access paths to the device. RMI works by pairing the Physical Management Port of the SLX box with one of the physical front panel User Ports. The paired User Port starts in the 'Active-Standby' mode. By default, the Physical Management port is the 'Active' and 'Primary' port and the paired User Port, the 'Standby'. Only one User Port can be configured as the Redundant Management Interface.
Redundant Management Interface uses Linux's native bonding feature to enable the inbuilt Management Port of the SLX box to work with the user configured physical port to provide redundancy.
Note
In-band ports bandwidth shall be rate limited as per platform and are unrelated to front-panel port capability.Note
Redundant Management is supported on the SLX 9250/Extreme 8720 and the SLX 9740/Extreme 8820 devices.eth0 is a logical virtual bridge interface serving both SLX-Linux and TPVM management interfaces. It has a secondary interface bond0, which is a Linux LAG in Active-Standby mode, providing fault-tolerance on the Management Path. bond0 has a preconfigured Primary-Active member, eth3. Primary which implies that this member is used and active whenever available. The eth3 interface represents the physical management interface RJ45 port available on the front panel. For fault tolerance, you can select a standby member from any of the front panel ports, with any native speed. The standby member is used only if the active member becomes faulty.
A user port may be used with a Mellanox Adaptor at 1G Cu SFP or 10G Cu SFP.
To configure a physical front panel port on the device (for example, eth0/15) as a
redundant management port, execute the redundant-management enable
command from within its context. Both the configured redundant management interface
ports (eth 0/15 and primary port eth3) must be physically connected to two (2)
management LAN switches where these switches share the same default gateway.