7. Reference

Installed layout (post-install):

Path Purpose
/opt/bng-demo/ Plugin payload (Python source, install.sh, VERSION)
/etc/systemd/system/bng-demo.service Systemd unit — enabled + started by install.sh
/usr/local/bin/reset-cpesim One-liner state-cleanup script
/tmp/quantumtouch-installer-<VERSION>/ Extracted wrapper installer (kept until you rm -rf)

Network layout during a run:

Kernel iface Netns Role
demo0 cpesim-subs Sub-side of the access veth. Owns all framed IPs (10.50.0.2/32 through 10.50.0.<N+1>/32) plus RELAY_GIADDR (10.50.0.254/32). Sub processes bind AF_PACKET sockets here.
demo0p root Root-side of the access veth. VPP attaches as host-demo0p and the BNG runs its access-input node on it.
demo-up root Origin-side of the uplink veth. Owns 10.0.0.1/24. OriginServer binds 0.0.0.0:8080 to it.
demo-upp root VPP-side of the uplink veth. VPP attaches as host-demo-upp and installs the default route (10.0.0.1 via host-demo-upp).

Version pin bump procedure (for ops):

  1. New CPESIM release published to Bluedot-Insight/cpesim.
  2. Bump CPESIM_VERSION in quantumtouch_bng/helpers/cpesim_module.py.
  3. Bump BUNDLE_VERSION in installer/PINS.sh.
  4. Ship a new QuantumBNG release; the wrapper's About page now installs the new plugin.

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