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Install packages:

sudo -E apt-get update
sudo apt-get install iperf

CUMULUS MULTICAST:

net add interface swp1 igmp join  224.10.2.1  # for an interface to join a group
net add pim rp 10.1.0.5 224.10.2.0/24
! The above works and 'net show mroute' shows state

It can be run in ODM boxes(original design manufacturers):

Quanta
Delta
Edgecore
Accton
Alpha Networks
Penguin computing
NVIDIA>Mellanox>Cumulus (so now so cumulus no access to Broadcom)

These are vendors that nornmally run directly on ODM machines (besides from the incumbent ones):

ipinfusion
mikrotec
cumulus
SONIC (Software for Open Network in the Cloud. Azure uses it)

Note that ODM (Original Design Manufacturing) vs OEM (Original Equipment Manufacturer):

OEM or the Original Equipment Manufacturer designs a product based on the buyer’s specifications.
ODM or the Original Design Manufacturer designs and manufactures products on their own.

Openswitch: uses db model instead of ephemeral message bus.
Hardware: Acton switches link Current ASICs:

Broadcom
1. Tomahawk-3 : discontinued except for Hyperscalers
2. Trident : more for Enterprise
3. Jericho2 : more for ISPs. ToR switches
  1. buffer-oriented, more programmable
Intel:
1. Barefoot
  1. P4
2. Tofino
Mellanox
OVM Teralinks
Marvell-prestera
Cavium

Netronome

Ownership: NVidia > Mellanox > Cumulus (so cumulus cannot use broadcom anymore)\ Nvidia: cpu less important. GPU, TPU (for tensors (AI))

ASIC considerations:
- Buffer space
- Forwarding table size
  - On-chip table vs On-chip TCAM
- Forwarding features
  - performance
- Programmable forwarding pipeline
  - P4
  - recirculation for vxlan?

SDN NOTES:

Cisco : Viptela
mycompany2 : Talari
Junper : OPENCONTRAIL : TUGSTEN (check these projects): micro backplane

DISAGGREGATION:

HAL (for forwarding):

SAI (ms, set of apis to talk to the fwd hardware. compatible but one step more)
switchdev (part of the linux kernel but currently (2022) only Mellanox hardware supports it)