bond_watch.py

#!/usr/bin/python

exclide_keys = ['Ethernet Channel Bonding Driver', 'Primary Slave', 'Up Delay (ms)',
        'Down Delay (ms)', 'Slave queue ID', 'Duplex', 'Speed', 'Link Failure Count',
        'Bonding Mode', 'MII Polling Interval (ms)']

def print_bond_status(dev):
    md = {}
    d = {}
    with open("/proc/net/bonding/{}".format(dev)) as fp:
        for row in fp.readlines():
            row = row.strip()
            if row:
                _key, _value = row.split(': ')
                if _key in exclide_keys: continue
                if _key == 'Currently Active Slave':
                    md['current_slave_dev'] = _value
                if _key == 'Currently Active Slave':
                    md['active'] = _value
                    continue
                if _key == 'Slave Interface':
                    sdev = _value
                    d[sdev] = {}
                    continue
                if _key == 'MII Status':
                    if 'sdev' in vars():
                        d[sdev][_key] = _value
                    else:
                        md[_key] = _value

    print("Master  Status  Active  Interface  Link")
    print("---------------------------------------")
    isFirstRow = True
    for sdev in d:
        act = '*' if md['current_slave_dev'] == sdev else ' '
        if isFirstRow:
            print("{:6}  {:6}  {:6}  {:9}  {:4}".format(dev, md['MII Status'], act, sdev, d[sdev]['MII Status']))
            isFirstRow = False
        else:
            print("{:6}  {:6}  {:6}  {:9}  {:4}".format('', '', act, sdev, d[sdev]['MII Status']))
    print('')


for dev in ['eth0', 'eth1', 'ha']:
    print_bond_status(dev)