# Configuring Network Bonding For Data Protection Network

Configure the network bonding for the Data Protection network.

## Before You Begin

Obtain the following IP addresses before you start:

Entity | IP Address
--- | ---
IP address for the bonded public data protection interface |
Netmask IP for the interface |
Gateway IP for the interface to connect to |
DNS IP addresses associated with the bonded ports |

## Procedure

1. Login to the node using the following default credentials:

   Login: root

   Password: cvadmin

   Note

   This password can be changed during setup.

2. Navigate to the following folder:

       /opt/commvault/MediaAgent

3. Execute the `cvnwlacpbond.py` with appropriate parameters to setup the bonding.

4. Restart the network service to create the bonding with the appropriate parameters using the following command:

       systemctl restart network

5. Repeat these steps in the other nodes.

## Examples

### Help to Run the Bonding modes

Use the following command to display help:

    ./cvnwlacpbond.py -h

The following output will be displayed:

    usage: cvnwlacpbond.py [-h] [-c] [-m {802.3ad,active-backup}] [-t {dp,sp}]
                           [-i IP] [-f IFACE IFACE] [-n NETMASK] [-g GATEWAY]
                            [-d DNS [DNS ...]] [-s]
    Tool to augment and validate network settings for HyperScale
    optional arguments:
      -h, --help            show this help message and exit
    Configure Network:
      -c, --configure       Option to configure network
      -m {802.3ad,active-backup}, --mode {802.3ad,active-backup}
                            Mode of bonding. Defaults to 802.3ad
      -t {dp,sp}, --nwtype {dp,sp}
                            Type of network. Defaults to Data Protection
      -i IP, --ip IP        IP address of the interface
      -f IFACE IFACE, --iface IFACE IFACE
                            Interfaces to use for configuring the bond
      -n NETMASK, --netmask NETMASK
                            Netmask IP of the interface
      -g GATEWAY, --gateway GATEWAY
                            Gateway IP for the interface to connect to
      -d DNS [DNS ...], --dns DNS [DNS ...]
                            DNS IPs for the interface to configure with
      -s, --suppress        Suppress link validation while configuring the
                            interface

Note

Multiple DNS servers can be provided for the -d option, using space as the delimiter.

### Configuring Active-Backup Bonding on Data Protection Network

Use the following options to set mode 1 (active-backup bonding) for Data Protection network:

     ./cvnwlacpbond.py -c -m $[active-backup] -t $[dp] -i $[Bonded IP for public data protection network] -n $[Data Protection Netmask IP] -g $[Data Protection Gateway IP] -d $[ ]

For example:

    ./cvnwlacpbond.py -c -m $[active-backup] -t $[dp] -i $[10.11.11.61] -n $[255.255.255.0] -g $[10.11.11.1] -d $[10.11.11.21 10.11.11.22]

The following output will be displayed:

    Arguments entered: {'nwtype': 'dp', 'configure': True, 'ip': '10.11.11.61', 'netmask': '255.255.255.0', 'mode': 'active-backup', 'dns': ['10.11.11.21', '10.11.11.22'], 'validate': False, 'gateway': '10.11.11.1'}
    Creating network config files for Data protection network..
    Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-eno3...
    Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-enp134s0f0...
    Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-bond1...
    All network config files created successfully..

### Configuring LACP Bonding on Data Protection Network

Use the following options to set mode 4 (LACP bonding) for Data Protection network:

     ./cvnwlacpbond.py -c -m $[active-backup] -t $[dp] -i $[Bonded IP for public data protection network] -n $[Data Protection Netmask IP] -g $[Data Protection Gateway IP] -d $[ ]

For example:

    ./cvnwlacpbond.py -c -m $[802.3ad] -t $[dp] -i $[10.11.11.50] -n $[255.255.255.0] -g 10.11.11.1 -d $[10.11.11.11 10.11.11.12]

The following output will be displayed:

    Arguments entered: {'nwtype': 'dp', 'configure': True, 'ip': '10.11.11.50', 'netmask': '255.255.255.0', 'mode': '802.3ad', 'dns': ['10.11.11.11', '10.11.11.12'], 'validate': False, 'gateway': '10.11.11.1'}
    Creating network config files for Data protection network..
    Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-eno3...
    Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-enp134s0f0...
    Processing file: /opt/commvault/MediaAgent/ifcfg-scripts/lacp/ifcfg-bond1...
    All network config files created successfully..

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