Network Automation & Python
Guides, scripts, and write-ups for network engineers who want to build with code. Written by Cam from Michigan.
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MI
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2+
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Python Automation
Netmiko, Nornir, pyATS. Scripts that run against production gear.
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Network Engineering
BGP, OSPF, VXLAN, spine-leaf. Configs and diagrams.
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Security & NAC
802.1X, MAB, Palo Alto. Locking things down the right way.
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Infrastructure as Code
Ansible, Git, CI/CD. Network configs managed like software.
scan_network.py
#!/usr/bin/env python3
# find every device on the campus
from nornir import InitNornir
from nornir_netmiko.tasks import netmiko_send_command
nr = InitNornir("config.yaml")
def get_mac_table(task):
r = task.run(
netmiko_send_command,
command_string="show mac address-table",
use_textfsm=True
)
return r.result
results = nr.run(task=get_mac_table)
print(f"Scanned {len(nr.inventory.hosts)} switches")
