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[teammgrd]during warm-reboot teamd need to recover system-id from saved lacp-pdu#1003

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shine4chen:teamdmgrd
Dec 1, 2019
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[teammgrd]during warm-reboot teamd need to recover system-id from saved lacp-pdu#1003
pavel-shirshov merged 2 commits intosonic-net:masterfrom
shine4chen:teamdmgrd

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@shine4chen shine4chen commented Jul 30, 2019 •
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Signed-off-by: shine.chen [email protected]

What I did

  • When creating new portchannel, teammgrd gets the MAC from the saved LACP PDU and updates the port-channel MAC accordingly.
  • Pls refer to MCLAG-HLD for details.

Why I did it

  • In MC-LAG scenario, two peer devices form one end point of a LAG, these two devices must have the same MAC address since it’s used for LACP. During warm-reboot, this MAC must not be changed.

How I verified it

  • test it on nephos lab. With this approach we observe zero packet loss during mclag warm-reboot procedure.

Details if related

@shine4chen shine4chen changed the title [teammgrd]during warm-reboot teamd need to use same system-id before warm-reboot [teammgrd]during warm-reboot teamd need to recover same system-id from saved lacp-pdu Jul 30, 2019
@shine4chen shine4chen changed the title [teammgrd]during warm-reboot teamd need to recover same system-id from saved lacp-pdu [teammgrd]during warm-reboot teamd need to recover system-id from saved lacp-pdu Jul 30, 2019
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lguohan commented Jul 31, 2019

vs test missing.

@lguohan lguohan requested a review from stcheng July 31, 2019 17:08
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shine4chen commented Aug 1, 2019

@lguohan Teammgrd runs in teamd docker. Originally we want to add some vs test cases. But we find the existing vs image don't include teamd docker. We can add vs test cases soon after teamd docker is added in vs image.

@shine4chen shine4chen mentioned this pull request Aug 30, 2019
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adyeung commented Sep 18, 2019

BRCM team has completed the review, we have no further request or comment to add, please proceed to the next steps.

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BRCM team has completed the review, we have no further request or comment to add, please proceed to the next steps.

@lguohan lguohan assigned pavel-shirshov and unassigned stcheng Nov 12, 2019
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pavel-shirshov commented Nov 12, 2019

@shine4chen
How "correct" mac address is going to be set initially, before it is saved to a file?
Why mac address from config db is considered as incorrect?

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jianjundong commented Nov 13, 2019

@shine4chen
How "correct" mac address is going to be set initially, before it is saved to a file?
Why mac address from config db is considered as incorrect?

@pavel-shirshov : Teamd saved the last PDU from partner per port in /var/warmboot/teamd/, the mac address of this device that saved in the PDU may be different to the mac address in config db. For example, in MCLAG scenario, the standby device will change the local mac address to the mac address of active device. If the standby device is warm rebooted, this mac address must be the same as that before warm-restart, if not, the portchannel will be broken and the data forwarding may be blocked.

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pavel-shirshov suggested changes Nov 13, 2019
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As comments.

refine per review comment
84c2677 
Signed-off-by: shine.chen <[email protected]>
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pavel-shirshov commented Nov 14, 2019

retest this please

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shine4chen commented Nov 20, 2019

retest this please

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pavel-shirshov commented Nov 20, 2019

@shine4chen Can you please check why checks are failing?

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shine4chen commented Nov 21, 2019 •
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@pavel-shirshov I analysised 32 failed test cases and found two root cause.

  1. Cmd ip link add pensive_ishi type veth peer name eth1 executes failed which result in the failure of DockerVirtualSwitch.
  2. In this vs test environment frr-vrf-patch is NOT imported which result in the failure of some vrf related test cases. I know frr-vrf-patch is merged to master branch. But for some environment issue the build failed, so vs test still gets the obsolete build artifact.
    Anyway neither is connected to this PR.

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shine4chen commented Nov 21, 2019

retest this please

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shine4chen commented Nov 21, 2019

retest this please

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shine4chen commented Nov 23, 2019

retest this please

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pavel-shirshov commented Nov 26, 2019

retest this please

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shine4chen commented Nov 28, 2019

retest this please

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shine4chen commented Nov 28, 2019

retest this please

@pavel-shirshov pavel-shirshov merged commit 7bf63a0 into sonic-net:master Dec 1, 2019
@stepanblyschak stepanblyschak mentioned this pull request Jan 13, 2020
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oleksandrivantsiv pushed a commit to oleksandrivantsiv/sonic-swss that referenced this pull request Mar 1, 2023
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[vslib]: Fix MACsec bug in SCI and XPN (sonic-net#1003)
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Janetxxx pushed a commit to Janetxxx/sonic-swss that referenced this pull request Nov 10, 2025
@shine4chen @pavel-shirshov
[teammgrd]during warm-reboot teamd need to recover system-id from sav…
32fb329 
…ed lacp-pdu (sonic-net#1003)

* during warm-reboot teamd need to use same system-id before warm-reboot

Signed-off-by: shine.chen <[email protected]>

* refine per review comment

Signed-off-by: shine.chen <[email protected]>
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