netshow core
Netshow is Network Abstraction Software. It is optimized to collect core networking data from devices that contain many network interfaces.
The netshow core respository has 2 main components:
netshow-core-lib:
This is core library for retrieving network information from a device and abstracting it into Python objects.
Its core module is called netshowlib. It contains a few high levels such as iface() and system_summary(), that when called, this calls a provider that retrieves the information from the system.
A provider is module that interacts with the base system and converts relevant network information into python objects. For example, the Linux provider, when the netshow-core-lib iface() is called, can retrieve network information like MTU, speed, IP address from device running a Linux kernel.
Example:
With the Linux provider, retrieve details about the eth1 interface
import netshowlib.netshowlib as nn
eth1 = nn.iface('eth1')
>>> eth1.ip_address.allentries
[u'192.168.50.11/24']
>>> eth1.lldp
[{'adj_port': 'swp4', 'adj_mgmt_ip': '192.168.121.242', 'adj_hostname':
'clswitch'}]
>>> eth1.is_trunk()
True
>>> eth1.is_l3()
True
>>>
netshow-core:
Netshow is responsible printing and analysing the information collected from the library component of netshow. netshow-core is the core component of this functionality and uses providers (plugins) to properly print and analyse gathered by the netshowlib component of the provider(plugin). For example, the print_iface wrapper class in the Linux netshow provider, is responsible for printing linux network information collected by the Linux provider netshowlib modules.
Example
--------------------------------------------------------------------
To view the legend, rerun "netshow" cmd with the "--legend" option
--------------------------------------------------------------------
Name Speed MTU Mode Summary
-- -------------- ------- ----- --------- ----------------------------------------------------------------
UP br-mgmt N/A 1500 Bridge/L3 IP: 192.168.20.11/24
802.1q Tag: 20
STP: Disabled
Untagged Members: veth5WQUVA, veth6WQOHK, veth9QKURD, vethC7T63I
vethCJVLB0, vethCNHO6U, vethDH3HJN, vethIL9QSD
vethJE59U0, vethKHX7YP, vethLWHN0S, vethMLNDOE
vethQUF6ME, vethSNCPD3, vethUI07YQ, vethVN2PUS
vethX4O674, vethYWI604
Tagged Members: eth1
UP br-vlan N/A 1500 Bridge/L2 802.1q Tag: Untagged
STP: Disabled
Untagged Members: vethMALSDL
UP brq087285e9-e4 N/A 1500 Bridge/L2 802.1q Tag: 20
STP: Disabled
Untagged Members: tap141463e6-4e, tapfa96896f-f0
Tagged Members: eth2
UP lxcbr0 N/A 1500 Bridge/L3 IP: 10.0.3.1/24
802.1q Tag: Untagged
STP: Disabled
Untagged Members: veth2NPR41, veth4RRO82, veth67W8CB, veth8FTEPM
veth9AVA9R, vethA6S7T7, vethCEP462, vethD2U7GF
vethD4TJV0, vethHX8KQC, vethKIP4S8, vethL4R007
vethOEYR65, vethPSLRGF, vethRQYX9H, vethVAUL56
vethXC6NM4, vethYTPAWP
Contributing
Fork it.
Create your feature branch (git checkout -b my-new-feature).
Commit your changes (git commit -am 'Add some feature').
Push to the branch (git push origin my-new-feature).
Create new Pull Request.
License and Authors
Author:: Cumulus Networks Inc.
Copyright:: 2015 Cumulus Networks Inc.
Cumulus Linux
Cumulus Linux is a software distribution that runs on top of industry standard networking hardware. It enables the latest Linux applications and automation tools on networking gear while delivering new levels of innovation and flexibility to the data center.
For further details please see: cumulusnetworks.com
This project is licensed under the GNU General Public License, Version 2.0
1 maintainer
Metadata
1 maintainer
Release files for netshow-core-lib 1.1.3
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