ivica-k

# Originally developed by Jiten P. of AWS Support
# adapted by ivica-k
import boto3
import argparse


COUNT_ENIS = 0
COUNT_HENIS = 0
COUNT_HENIS_LAMBDA = 0

ivica-k

# be sure to export $AWS_DEFAULT_REGION and $VPC_ID
$ aws ec2 describe-network-interfaces --region $AWS_DEFAULT_REGION \
  --filters 'Name=vpc-id,Values=$VPC_ID' 'Name=status,Values=in-use' \
  --query 'NetworkInterfaces[?InterfaceType==`lambda`].NetworkInterfaceId'

ivica-k

$ python henis.py
Total number of ENIs: 409
Total number of hyperplane ENIs: 139
Total number of hyperplane ENIs used by Lambdas: 68

# adding --verbose shows ENI and HENI IDs
$ python henis.py --verbose
Total number of ENIs: 413
Total number of hyperplane ENIs: 139
Total number of hyperplane ENIs used by Lambdas: 68