half-duplex

Node.js program that crawls a Cisco network using CDP and finds all of the half-duplex ethernet interfaces. The goal is the discovery of speed/duplex mismatches. Sends the result via email.

install

- install node.js
- install half-duplex
``
npm install half-duplex
`

configure

- Rename config file.
`
ren config.js.example config.js
`

- Configure parameters in config.js as follows.

seedDevices: One device per CDP island.
community: SNMPv2c community string.
smtpServer: SMTP relay accessible to the host.
emailFrom: Email from address.
emailTo: Email to address.
ignoreDevices: Exclude devices from polling.

usage

`
cd c:\pathto\half-duplex
npm start
``

windows task scheduling

program: npm
arguments: start
start in: c:\pathto\half-duplex