Part of the Green Monster Project is to
abstract the hardware for Vlan Management.
To do this I created a “plugin” for each network switch that we use at
the EEC. When action needs to be taken
against a network switch. Green Monster
first queries the database (See post 2)
to determine the DLL that it should load into the plugin manager. Once it is loaded I can execute the exposed
methods.
This plugin model is the same process used for Power
management and KVM management. The
interaction with the network switch is abstracted from the main code. It is up to the plugin to know the best ways
to execute a given command. This allows
for the plugin to use any available execution methods. This can include SNMP, Netconf, scripted
telnet, SSH, or other web services. As
long as the plugin has the ability to communicate via the protocol desired it
should work.
The majority of the code we use for device interaction is
SNMP. So I thought I would post how we
use SNMP to do Vlan management. Some of
this was found by doing packet sniffs and working with the Manufactures
engineers.
For SNMP in CSharp I use the nsoftware.com SSNMP
library. It is very fast and we had luck with it working well. The code to
make the “raw” snmp call is not included because that requires a license for
the nsoftware library. If you have that
license and are interested please let me know and I can share some snip-its.
Brocade Networks (Turborion, MLX)
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