Brayan, > I would like to share my problem with you in order to find solution. > As you can see in vppctl output file, "vppctl show hardware" command result > contains "rx broadcast packets" and "tx broadcast packets". However, when I > used vpp python api to extract these stats, the value of > VNET_INTERFACE_COUNTER_RX_BROADCAST and VNET_INTERFACE_COUNTER_TX_BROADCAST > are stuck on zero incorrectly. attached you can see my python script and its > output and vppctl command output. This behavior exists in multicast stats. > > Best Regards, > > > vppctl output: https://pastebin.com/zXrArE4b > Python Script: https://pastebin.com/gDJbH1if > Python Script output: https://pastebin.com/q4dJ8VMs
Firstly these are not exactly the same counters. The first ones come directly from DPDK I believe, and the VNET_INTERFACE_COUNTER ones are from the stats_collect_rx_node, sitting as an input feature behind device-input. I don’t know if they are different because the broadcasts are filtered out before reaching VPP or if there is a better explanation, Damjan? With regards to Python and stats collection, or any stats collection in general. I would encourage you to try out the new stats segment. In Python you basically do: from vpp_papi.vpp_stats import VPPStats stat = VPPStats(<name-of-stats-socket) dir = stat.ls(['^/if’]) # For all interface counters use “show statistics segment” or vpp_get_stats ls to see all available counters counters = stat.dump(dir) Then counters[‘/if/tx'][thread index][sw_if_index] will give you the TX counter for a particular worker thread / software interface. Cheers, Ole
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