Check Network Redundancy

check_bond.sh

#!/bin/bash

PATH=/sbin:/usr/sbin:$PATH
# Validate being run as root/sudo
if [ "$EUID" -ne 0 ]; then
  echo "Please run as root"
  exit
fi

# Check for tools and find bonded interfaces
if [ `which systool &>/dev/null; echo $?` -gt 0 ]; then
  echo "No Tool: Systool"
  exit 1
fi

if which ip &>/dev/null; then
  BONDS=( $(ip link | awk {'print $2'} | grep "^bond[0-9]\+:" | sed 's/://') )
elif which ifconfig &>/dev/null; then
  BONDS=( $(ifconfig -a -s | awk {'print $1'} | grep "^bond[0-9]\+ ") )
else
  echo "No Tool: ip/ifconfig"
  exit 1
fi

if [ ${#BONDS[@]} -eq 0 ]; then
  printf "No bonded interface"
fi

# Iterate across each bonded interface, to ensure each is redundant for both ports and card functionality
for BOND in "${BONDS[@]}"; do

  printf "$BOND:"

  # Check Ports for bonded interface
  if [ `ip link | grep $BOND | wc -l` -ge 2 ]; then
    printf "Yes"
  else
    printf "No"
  fi

  # Empty temp file
  >$BOND.device

  # Generate list of interfaces for bond
  PORTS=( $(ip link | grep ${BONDS[@]} | awk {'print $2'} | sed 's/://') )

  # Write PCI Port for each network port used by bond to temp file
  for PORT in ${PORTS[@]}; do
    systool -c net -d $PORT | grep -i device | grep -vi class | awk -F: {'print $2'} >>$BOND.device
  done

  # Validate more than one PCI port is in use for bond
  if [ `cat $BOND.device | sort -u | wc -l` -ge 2 ]; then
    printf "&Yes "
  else
    printf "&No "
  fi

  # Clean up
  rm $BOND.device
done
printf "\n"