[python]First use of Napalm

I have a few Cisco routers which are on IOS, I have never used NAPALM before, I use netmiko most often for cisco devices, Napalm itself is based on netmiko, I napalm has a get_facts method that gather the information of cisco ios router, this is very convenient as compared with netmiko, netmiko is more … Continue reading [python]First use of Napalm

[python]Nornir framework usage example 1 – show ip int brief

Introduction Before using Nornir, I was using netmiko, netmiko is a steady module which makes configuring, getting information from cisco based devices easily. Of course netmiko is not limited to just Cisco, it is a multi-vendor module. Napalm is another network module which does the same thing as netmiko, however when dealing with Cisco ios … Continue reading [python]Nornir framework usage example 1 – show ip int brief

[python]Automating OSPF configuration of two routers

Network diagram There are two vIOS which are R1 and R2, they have their gi0/2 and gi0/3 connected to the R5 switch, the configuration is pushed from the cloud through their gi0/2 and gi0/3 to configure their gi0/0 to become OSPF neighbours. Objective To configure the two routers to become ospf neighbors, the OSPF configuration … Continue reading [python]Automating OSPF configuration of two routers

[python]Example script on Cisco router

This is an example script based on this https://github.com/davidbombal/pythonvideos/blob/master/paramiko-pythonssh1.py It works almost like pexpect, however need to have a privilege 15 account to make the SSHClient work, as there is no input to accept enable secret. I was trying to figure out the feasibility of using API to push the configuration, I find the send … Continue reading [python]Example script on Cisco router

Extending the python script to configure OSPF with ncclient

Previously I have successfully download the configuration from the netconf enabled router, now i have extended support to configure ospf. This is a simple lab to further extend and get myself familiarize and comfortable with netconf. During the lab I was careless, I inadvertently left a space on my netconf snippet that breaks my script … Continue reading Extending the python script to configure OSPF with ncclient

Is full meshed iBGP necessary?

Revisit the configuration of the iBGP routers R2#sh run | s r b router bgp 2 bgp log-neighbor-changes neighbor 3.3.3.3 remote-as 2 neighbor 3.3.3.3 update-source Loopback2 neighbor 3.3.3.3 next-hop-self neighbor 4.4.4.4 remote-as 2 neighbor 4.4.4.4 update-source Loopback2 neighbor 4.4.4.4 next-hop-self neighbor 192.168.12.1 remote-as 1 R2# R3#sh run | s r b router bgp 2 bgp … Continue reading Is full meshed iBGP necessary?