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Update PG profiles for Arista 7050#5324

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neethajohn merged 4 commits intosonic-net:masterfrom
baiwei0427:master
Sep 8, 2020
Merged

Update PG profiles for Arista 7050#5324
neethajohn merged 4 commits intosonic-net:masterfrom
baiwei0427:master

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@baiwei0427
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@baiwei0427 baiwei0427 commented Sep 4, 2020

Signed-off-by: Wei Bai [email protected]

- Why I did it
Current PG headroom values are wrong

- How I did it
Recalculate PG headroom with the following assumptions:

  • Link partner device: TD2
  • Packet in the Way - Size: 9216 bytes
  • Packet size distribution: 50% 64-byte packets and 50% 1082-byte packets.

And PG min = 1248 bytes. Size = PG min + PG headroom

- How to verify it

- Which release branch to backport (provide reason below if selected)

  • 201811
  • 201911
  • 202006

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

@baiwei0427
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retest this please

@neethajohn
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provided comments offline

@neethajohn neethajohn merged commit 0b6fd70 into sonic-net:master Sep 8, 2020
@abdosi
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abdosi commented Sep 19, 2020

@neethajohn Does it have impact of test case on pfc wd for 7050 ?
NJ> No. But it would affect the qos sai testcase. Some values need to be recalculated

@abdosi
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abdosi commented Oct 6, 2020

@neethajohn Do we need this for 201911 ? If yes i would prefer test case update and then verify before taking it for 201911.

@neethajohn
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More changes coming in upcoming PR for PG profile parameters. Will take that final version into 201911

santhosh-kt pushed a commit to santhosh-kt/sonic-buildimage that referenced this pull request Feb 25, 2021
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4 participants