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begin implementing diff based checksum in p4

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Nico Schottelius 2019-07-06 20:57:11 +02:00
commit a69c4060e2
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@ -399,10 +399,27 @@
| | - Diff'ing in P4 | |
| | * IPv4 checksum is w/o payload | |
| | | |
| | - Different generated output | |
| | | |
| | Next steps: | |
| | - Implement in BMV2 diff | |
| | - | |
| | - Checksum assignment / calc phase not clear | |
| | - Check if action has to be used | |
| | - Check if ifdef makes a difference | |
| | - Defense: list of dates | |
| | | |
| | - iperf (alternative: hping) -> test on production setup | |
| | | |
| | Late tests: | |
| | - Performance tests | |
| | - Extra things | |
| | - Maybe compile to openvswitch | |
| | | |
| 2019-07-06 | | |
| | Test case for delta in P4/BMV2: | |
| | | |
| | | |
| | | |
| | | |
| 2019-07-11 | | |
| | Integrated org-documentation into latex / export working | |
@ -4944,6 +4961,16 @@ else:
- .packed of ipaddress works
*** 2019-07-01: finish sum, use scapy checksum
*** 2019-07-01: meeting Laurent
*** 2019-07-06: test bmv2 / delta
Story:
- Static mapping / no controller
- IPv4 packet goes in
- Translated to IPv6
- IPv6 packet goes in
- Translated to IPv4
- Checksums match, but we only update it using
HashAlgorithm.csum16
** References / Follow up
*** RFC 791 IPv4 https://tools.ietf.org/html/rfc791
*** RFC 792 ICMP https://tools.ietf.org/html/rfc792