Proof of concept for network monitoring with graph database
This project is about to understand modelling network as we draw it and how to virtualise. For the beginning our core network, which is based on IGP/MPLS, was the cover. Later on we tried to see how we can virtualise the network and can we use the data to monitor the network like changing node colours or status as they go up and down.
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NOT DOCUMENTED WELL. I Will a sample code to the git hub
You need list of treelistener for each request. I used verctor, you may use array, stack, Linkedlist etc.
Continue reading “asynchronous snmp requests with java, snmp4j”
IF you see output drops with show int command and there is no other error on the output of the command, just the drops this may be highly related to qos. Add check proc for mls qos. If mls qos is enabled on the switch, by defualt it uses 4 output queues and share the interface bandwith between them. This may cause packet drops.
We try to use oxidizied for configuration backup. Below are a couple of problems and solutions we encounter during the project.
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Only Flexible Netflow (FNF) is supported.
Ref : http://www.cisco.com/c/en/us/td/docs/routers/asr1000/release/notes/asr1k_rn_rel_notes/asr1k_feats_important_notes_313s.html#pgfId-3455900
Continue reading “ARS 1000 Netflow”