Hi, I am trying to install flow table entries on switches which outputs a packet on a specified port based on a matching with the dest ip.
I need to specify two types of matches. the first set does a prefix match (eg. 10.2.1.0/24 should match an incoming packet's dest ip with the mask 255.255.255.0). If none of these match, the next set of entries do a suffix match (eg. 0.0.0.2/8 should match with mask 0.0.0.255). I want to install these entries on a switch when it comes up (datapath-join event). So I was wondering how I would mention these masks for the nw_dst field in the match structure. openflow.h mentions something about wildcard bit count and cidr.hh seems to provide some masking functions - do I use these, if so how? Thanks for your help. Regards, Arun
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