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fix: fix arp_update complains missing interface entry for static route#21513

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wangxin merged 1 commit intosonic-net:masterfrom
auspham:austinpham/36038296-investigate-fail-test
Dec 5, 2025
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fix: fix arp_update complains missing interface entry for static route#21513
wangxin merged 1 commit intosonic-net:masterfrom
auspham:austinpham/36038296-investigate-fail-test

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@auspham auspham commented Dec 3, 2025

Description of PR

Summary: Fix missing interface entry
Fixes # (issue) 36037511

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

Type of change

  • Bug fix
  • Testbed and Framework(new/improvement)
  • New Test case
    • Skipped for non-supported platforms
  • Test case improvement

Back port request

  • 202205
  • 202305
  • 202311
  • 202405
  • 202411
  • 202505
  • 202511

Approach

What is the motivation for this PR?

For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?

How did you verify/test it?

MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Any platform specific information?

Supported testbed topology if it's a new test case?

Documentation

@auspham auspham marked this pull request as ready for review December 3, 2025 04:06
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/azp run

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lgtm

@auspham auspham force-pushed the austinpham/36038296-investigate-fail-test branch from c88434d to 6a90ce8 Compare December 3, 2025 22:21
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/azp run

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Azure Pipelines successfully started running 1 pipeline(s).

@auspham auspham force-pushed the austinpham/36038296-investigate-fail-test branch from 6a90ce8 to b30c363 Compare December 4, 2025 00:57
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@wangxin wangxin merged commit de7f51b into sonic-net:master Dec 5, 2025
21 checks passed
saravanan-nexthop pushed a commit to saravanan-nexthop/sonic-mgmt that referenced this pull request Dec 15, 2025
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Saravanan <[email protected]>
gshemesh2 pushed a commit to gshemesh2/sonic-mgmt that referenced this pull request Dec 16, 2025
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Guy Shemesh <[email protected]>
AharonMalkin pushed a commit to AharonMalkin/sonic-mgmt that referenced this pull request Dec 16, 2025
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Aharon Malkin <[email protected]>
gshemesh2 pushed a commit to gshemesh2/sonic-mgmt that referenced this pull request Dec 21, 2025
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Guy Shemesh <[email protected]>
gshemesh2 pushed a commit to gshemesh2/sonic-mgmt that referenced this pull request Dec 21, 2025
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Guy Shemesh <[email protected]>
vrajeshe pushed a commit to Akshath-17/sonic-mgmt that referenced this pull request Jan 4, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Venkata Gouri Rajesh Etla <[email protected]>
venu-nexthop pushed a commit to venu-nexthop/sonic-mgmt that referenced this pull request Jan 13, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
yifan-nexthop pushed a commit to nexthop-ai/sonic-mgmt that referenced this pull request Jan 14, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: YiFan Wang <[email protected]>
mssonicbld pushed a commit to mssonicbld/sonic-mgmt that referenced this pull request Jan 20, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
@mssonicbld
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Cherry-pick PR to 202511: #22056

PriyanshTratiya pushed a commit to PriyanshTratiya/sonic-mgmt that referenced this pull request Jan 21, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Priyansh Tratiya <[email protected]>
lakshmi-nexthop pushed a commit to lakshmi-nexthop/sonic-mgmt that referenced this pull request Jan 28, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Lakshmi Yarramaneni <[email protected]>
ytzur1 pushed a commit to ytzur1/sonic-mgmt that referenced this pull request Jan 29, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
ytzur1 pushed a commit to ytzur1/sonic-mgmt that referenced this pull request Feb 2, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Yael Tzur <[email protected]>
abhishek-nexthop pushed a commit to nexthop-ai/sonic-mgmt that referenced this pull request Feb 6, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
vmittal-msft pushed a commit that referenced this pull request Feb 9, 2026
#21513) (#22056)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Co-authored-by: Austin (Thang Pham) <[email protected]>
lakshmi-nexthop pushed a commit to lakshmi-nexthop/sonic-mgmt that referenced this pull request Feb 11, 2026
sonic-net#21513) (sonic-net#22056)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Co-authored-by: Austin (Thang Pham) <[email protected]>
Signed-off-by: Lakshmi Yarramaneni <[email protected]>
rraghav-cisco pushed a commit to rraghav-cisco/sonic-mgmt that referenced this pull request Feb 13, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Raghavendran Ramanathan <[email protected]>
rraghav-cisco pushed a commit to rraghav-cisco/sonic-mgmt that referenced this pull request Feb 18, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Raghavendran Ramanathan <[email protected]>
anilal-amd pushed a commit to anilal-amd/anilal-forked-sonic-mgmt that referenced this pull request Feb 19, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Zhuohui Tan <[email protected]>
kazinator-arista pushed a commit to kazinator-arista/sonic-mgmt that referenced this pull request Mar 4, 2026
Aligned platform with 202411 changes
abhishek-nexthop pushed a commit to nexthop-ai/sonic-mgmt that referenced this pull request Mar 17, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
Signed-off-by: Abhishek <[email protected]>
venu-nexthop pushed a commit to venu-nexthop/sonic-mgmt that referenced this pull request Mar 27, 2026
sonic-net#21513)

Fix

E               2025 Nov 26 22:08:52.060655 ERR swss2#arp_update[16275]: 178 missing interface entry for static route 20.1.1.1

What is the motivation for this PR?
For tear down, we need to remove the route first before the arp. Otherwise swss will throw error

How did you do it?
How did you verify/test it?
MS Only: https://elastictest.org/scheduler/testplan/692f7c4c8a84f286cc565304

Signed-off-by: Austin Pham <[email protected]>
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