Minigraph ECMP parsing support (cleaner format) by kktheballer · Pull Request #4985 · sonic-net/sonic-buildimage

kktheballer · 2020-07-17T01:11:25Z

- Why I did it
To support FG_ECMP for certain azd scenarios
- How I did it
Modified minigraph parser to parse ECMP fields in the case they are present in minigraph
- How to verify it
Loaded ensuing config_db file on a DUT to verify the fields are parsed and configure device correctly
- Description for the changelog

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

lguohan · 2020-07-21T21:57:25Z

need to add sonic-cfggen tests, please

kktheballer · 2020-08-03T18:38:27Z

retest mellanox please.

kktheballer · 2020-08-03T18:39:34Z

retest mellanox please

kktheballer · 2020-08-05T18:45:11Z

retest mellanox please

kktheballer · 2020-08-10T23:30:08Z

retest mellanox please

kktheballer · 2020-08-13T00:24:10Z

retest mellanox please

kktheballer · 2020-08-14T19:44:43Z

retest mellanox please

anish-n · 2020-08-22T01:10:59Z

src/sonic-config-engine/minigraph.py

Change "hash_bucket_size" to "bucket_size" per schema

anish-n · 2020-08-22T17:48:19Z

src/sonic-config-engine/minigraph.py

Change "Bank" to "bank"

kktheballer · 2020-09-02T21:37:26Z

retests vsimage please

kktheballer · 2020-09-08T16:23:14Z

retest vsimage please

anish-n · 2020-09-08T17:28:26Z

src/sonic-config-engine/minigraph.py

Suggest moving this logic to line 211, and utilizing the endport and startdevice values already generated on line 194 and 195.

I believe I had written like this to work around the already in-place lines of code in 190-191

anish-n · 2020-09-08T17:38:59Z

src/sonic-config-engine/minigraph.py

Lets add a check for IPNextHop type FineGrainedECMPGroupMember

anish-n · 2020-09-08T17:42:29Z

src/sonic-config-engine/minigraph.py

I suggest that we rename the variable name, not necessary that it is a vlan

i can use nhg_int if that is better

anish-n · 2020-09-08T17:58:43Z

src/sonic-config-engine/minigraph.py

Why don't we use the QName based search/parse in the below section?

For that one specific section, very oddly, there were errors trying to do so. I will look into it again

anish-n · 2020-09-10T00:53:47Z

src/sonic-config-engine/minigraph.py

change variable name since its not necessary that it is a vlan

anish-n · 2020-09-10T01:22:30Z

src/sonic-config-engine/minigraph.py

IPv4 and IPv6 could have a different enumeration of banks and as a result a different lcm. I would also suggest moving this calculation of lcm to a helper function.

ok will do this

kktheballer · 2020-10-21T17:08:14Z

retest vsimage please

lgtm-com · 2020-11-17T20:32:38Z

This pull request introduces 1 alert and fixes 10 when merging bfb5236488f4f5049f3c61650dc9a2c9b4874e10 into b595a6e - view on LGTM.com

new alerts:

1 for Syntax error

fixed alerts:

5 for Unused import
3 for Unused local variable
1 for Testing equality to None
1 for Except block handles 'BaseException'

kktheballer · 2020-11-17T21:07:47Z

retest mellanox please

anish-n · 2020-11-20T18:07:51Z

src/sonic-config-engine/minigraph.py

Why do we need to truncate it here for the IPv4/IPv6 check?

anish-n · 2020-11-20T18:17:38Z

src/sonic-config-engine/minigraph.py

nit: readability consideration, I would recommend making dpg_ecmp_content a dictionary instead of an array.

addressed for dpg_ecmp_content as well as png_ecmp_content

kktheballer · 2020-11-29T18:39:18Z

retest mellanox please

kktheballer · 2020-12-10T01:39:49Z

retest mellanox please

anish-n · 2020-12-11T03:07:48Z

src/sonic-config-engine/minigraph.py

Assumes a single interface for all IPs, though it may be addressed in a future PR: it is better to not to assume single interface associated with all IPs.

src/sonic-config-engine/minigraph.py

src/sonic-config-engine/tests/test_cfggen.py

abdosi

Please see the comments and update it accordingly.

abdosi

LGTM

kktheballer · 2020-12-23T23:58:53Z

retest vsimage please

kktheballer · 2020-12-27T22:37:27Z

retest vsimage please

abdosi

LGTM

anish-n · 2020-12-30T22:01:33Z

src/sonic-config-engine/tests/test_cfggen.py

+        output = self.run_script(argument)
+        self.assertEqual(output.strip(), "['200.200.200.1', '200.200.200.10', '200.200.200.2', '200.200.200.3', '200.200.200.4', '200.200.200.5',"
+                                         " '200.200.200.6', '200.200.200.7', '200.200.200.8', '200.200.200.9', '200:200:200:200::1', '200:200:200:200::10',"
+                                         " '200:200:200:200::2', '200:200:200:200::3', '200:200:200:200::4', '200:200:200:200::5', '200:200:200:200::6',"


In a future PR can we address adding checks for the values being populated in these entries(FG_NHG, link, and bank), having only the keys tested prevents 100% test coverage.

anish-n

looks good to me, I provided a comment on test improvement, I would recommend that for a follow up PR.

kktheballer force-pushed the ecmp_parsing branch from 1288c68 to 29a69cc Compare July 28, 2020 21:50

kktheballer force-pushed the ecmp_parsing branch from 29a69cc to 48a323d Compare August 5, 2020 21:10

kktheballer force-pushed the ecmp_parsing branch 2 times, most recently from 318355b to cb2c833 Compare August 11, 2020 21:04

prsunny requested review from abdosi and anish-n August 18, 2020 17:34

anish-n reviewed Aug 22, 2020

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kktheballer force-pushed the ecmp_parsing branch from efb0339 to 1dab9c7 Compare August 26, 2020 22:15

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kktheballer force-pushed the ecmp_parsing branch from 1dab9c7 to 13beebc Compare September 15, 2020 18:06

kktheballer force-pushed the ecmp_parsing branch from 65c39a4 to bfb5236 Compare November 17, 2020 20:17

anish-n reviewed Nov 20, 2020

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kktheballer force-pushed the ecmp_parsing branch from 806610c to cf74368 Compare November 29, 2020 23:12

anish-n reviewed Dec 11, 2020

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anish-n previously approved these changes Dec 11, 2020

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abdosi reviewed Dec 15, 2020

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kktheballer dismissed anish-n’s stale review via f62c63b December 17, 2020 17:32

kktheballer force-pushed the ecmp_parsing branch 3 times, most recently from bf3e563 to da29af4 Compare December 23, 2020 00:49

kktheballer requested a review from abdosi December 23, 2020 17:27

kktheballer force-pushed the ecmp_parsing branch from f7678b3 to d90543b Compare December 23, 2020 19:06

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kktheballer dismissed abdosi’s stale review via 3615e69 December 23, 2020 20:00

Minigraph ECMP parsing support (cleaner format)

940dd94

kktheballer force-pushed the ecmp_parsing branch from 3615e69 to 940dd94 Compare December 23, 2020 20:09

Adding revised test cases and changing test minigraph.xml content

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lguohan force-pushed the master branch from 3690c1a to 512eb6b Compare December 25, 2020 18:34

kktheballer requested review from abdosi and anish-n December 28, 2020 18:27

abdosi approved these changes Dec 28, 2020

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anish-n reviewed Dec 30, 2020

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anish-n approved these changes Dec 30, 2020

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abdosi merged commit ba92a08 into sonic-net:master Dec 30, 2020

Conversation

kktheballer commented Jul 17, 2020

Uh oh!

lguohan commented Jul 21, 2020

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kktheballer commented Aug 3, 2020

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kktheballer commented Sep 2, 2020

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kktheballer commented Oct 21, 2020

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kktheballer commented Nov 29, 2020

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kktheballer commented Dec 23, 2020

anish-n Dec 30, 2020 •

edited

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