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How to configure MGU on redundancy bonded and dual subnet
- Thread starter palmeiras
- Start date
The original way to configure redundancy on TSE systems was to use dual subnet but this can lead to a problem on the servers known as "split brain".
Introduced in V4 network bonding prevents the split brain problem happening but requires the LAN infrastructure be configured to allow this mode of operation.
To configure the MGU for dual subnet you must configure all nvparam parameters, eth0_ip, eth1_ip, eth2_ip, eth3_ip, def_route (eth0 network) and def_route1 (eth1 network).
Parameters eth0_ip, eth2_ip, and def_route must be on the same network as each other.
Parameters eth1_ip, eth3_ip and def_route1 must be on the same network as each other but on a different network from eth0/eth2
For network bonding or non-redundant network you only configure the nvparam parameters eth0_ip, eth2_ip and def_route which must be on the same network as each other.
Only parameters, eth0_ip, eth2_ip and def_route (eth0 network) shall be configured.
(Parameters eth1_ip, eth3_ip and def_route1 are not configured.)
The Ethernet bonding link failover mode is automatically activated when a connection is made to LAN 1.
Set eth0 and Default GW Addresses
1. Login with user: admin, password: admin. Switch to root, by: su - The default password is root.
Note: Change the root password!
2. Set the IP address and subnet mask of interface 0.
Use the command: nvparams -setpar eth0_ip ip-address/netmask
Example: nvparams -setpar eth0_ip 192.100.0.30/24
3. Set the IP address for the default gateway.
Use the command: nvparams -setpar def_route ip-address
Example: nvparams -setpar def_route 192.100.0.1
4. Check the settings
Use the command: nvparams -dispar all
5. Make a manual reboot of the MGU board.
Check out my MGU and Server docs here for more details-
Introduced in V4 network bonding prevents the split brain problem happening but requires the LAN infrastructure be configured to allow this mode of operation.
To configure the MGU for dual subnet you must configure all nvparam parameters, eth0_ip, eth1_ip, eth2_ip, eth3_ip, def_route (eth0 network) and def_route1 (eth1 network).
Parameters eth0_ip, eth2_ip, and def_route must be on the same network as each other.
Parameters eth1_ip, eth3_ip and def_route1 must be on the same network as each other but on a different network from eth0/eth2
For network bonding or non-redundant network you only configure the nvparam parameters eth0_ip, eth2_ip and def_route which must be on the same network as each other.
Only parameters, eth0_ip, eth2_ip and def_route (eth0 network) shall be configured.
(Parameters eth1_ip, eth3_ip and def_route1 are not configured.)
The Ethernet bonding link failover mode is automatically activated when a connection is made to LAN 1.
Set eth0 and Default GW Addresses
1. Login with user: admin, password: admin. Switch to root, by: su - The default password is root.
Note: Change the root password!
2. Set the IP address and subnet mask of interface 0.
Use the command: nvparams -setpar eth0_ip ip-address/netmask
Example: nvparams -setpar eth0_ip 192.100.0.30/24
3. Set the IP address for the default gateway.
Use the command: nvparams -setpar def_route ip-address
Example: nvparams -setpar def_route 192.100.0.1
4. Check the settings
Use the command: nvparams -dispar all
5. Make a manual reboot of the MGU board.
Check out my MGU and Server docs here for more details-
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