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--- network_stuff:cumulus [2022/05/26 14:32] – jotasandoku
+++ network_stuff:cumulus [2024/09/22 16:47] (current) – [HAL (for forwardig)] jotasandoku
@@ Line 46: / Line 46: @@
 Current ASICs:
   - Broadcom
-    - Tomahawk
+    - [[https://en.wikipedia.org/wiki/Broadcom_Corporation#Tomahawk-3_Chip|Tomahawk-3]]  : discontinued except for Hyperscalers
-    - Trident
+    - Trident : more for Enterprise
-    - Jericho2
+    - Jericho2 : more for ISPs. ToR switches
-  - OVM Teralinks
+      - buffer-oriented, more programmable
-  - Marvell-prestera
+  - Intel:
-  - Cavium
-  - Inte:
     - [[http://packetpushers.net/barefoot-networks-announces-first-switches-programmable-tofino-chip/|Barefoot]]
+      - P4
     - 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 [[https://blog.ipspace.net/2022/06/data-center-switching-asic-tradeoffs.html|considerations]]:
+    * Buffer space
+    * Forwarding table size
+      * On-chip table vs On-chip TCAM
+    * Forwarding features
+      * performance
+    * Programmable forwarding pipeline
+      * P4
+      * recirculation for vxlan?
 ----
@@ Line 73: / Line 86: @@
 __DISAGGREGATION__:\\
-HAL (for forwardig):
+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)

dokucama

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