PHP SNMP Cisco Function Needed
Required skills: Cisco, PHP, System Admin.
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We already have a PHP application we use for our internal management. I need a single function, written in PHP, that will do an SNMP query of a Cisco switch and return me all the current interfaces and their current port utilization, both input and output. This will need to work with a Cisco 3750 backbone switch and a bunch of Cisco 2950 top-of-rack switches. The exact syntax can be determined but I'm looking to call something like: <? function GetPortUtilization($ SwitchIP, $ SwitchType='3750') { //Your code here } ?> This would return an array with three values per interface: Interface Name, Current Input utilization (bps), Current Output utilization (bps). Example: FastEthernet0/1 12345 67890 FastEthernet0/2 61634 21535 FastEthernet0/3 21537 55637 FastEthernet0/4 90387 42146 FastEthernet0/5 67265 84822 FastEthernet0/6 39061 17161 We would then use the results for our own purposes. There would be no user interface needed from the Freelancer at all. We just want a black-box SNMP function that we can use in our existing application. Notes: 1. This must be a raw PHP/SNMP function with no dependency on anything else like Netflow. 2. Do not think there's a simple SNMP get-utilization function you can call. You can get the bytes transferred and the time of that transfer. You will need to store that info, take a new snapshot of bytes transferred, and then calculate the difference and divide by the time that has passed in order to get the current bits/second. Details about how to store that info can be discussed, and I'm open to everything from a database to static variables. As far as I can tell, this will mean that the function can't return useful data on its first call, but only on subsequent calls. That's ok with me as it will be put on a timer and called every 30 seconds or so when we're done. 3. The function should handle very high numbers (hundreds of terabits). 4. We have both 3750 and 2950 switches ready to go for this and are eager to begin. The project may be awarded before the 30 days is up. 5. Give me some detail about your knowledge of SNMP and PHP, or at least your general knowledge if you don't have any direct experience with SNMP. |
Posted In:PHPSystem Admin. |
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