Due to a ransomware attack, the wiki was reverted to a July 2022 version. . We apologize for the lack of a more recent valid backup.
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| title | Work in progress |
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P4 is a domain-specific language designed to allow programming of protocol-independent packet processors. Behavioral Model v2 (BMv2) is the reference P4 software switch. Initial support for this type of device has been included into ONOS 1.6 (Goldeneye) with 2 goals: i) provide the research community with a platform to experiment with P4-based applications and ii) define a common groundwork to support programmable data planes in the next versions of ONOS.
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In this case, we are emulating a network of BMv2 devices with a 4x4 torus topology controlled by a 3-nodes ONOS cluster. onos.py and bmv2.py are distributed in the ONOS repository under tools/dev/mininet, for this reason, we can avoid using the environment variable $BMV2_PY.
BMv2 Device Context Service API (WIP)
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- Configuration swap enforcement
ECMP / WCMP demo application
Work in progress
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Known issues
- In ONOS 1.6.0:
- When running a cluster with multiple instances of ONOS, a stack overflow Java exception will be thrown by
Bmv2TableEntryService. This is due to a known bug of the Kryo serializer. This issue has been already fixed and is available in the latestmasterandonos-1.6branch.
- When running a cluster with multiple instances of ONOS, a stack overflow Java exception will be thrown by