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LACP ERROR vlacpRxFrame: Incorrect PDU!

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TitleLACP ERROR vlacpRxFrame: Incorrect PDU!
Symptoms

Below log messages appear in switch:

CP1  [MM/DD/YY hh:mm:ss] 0x000ec5b3 00000000 GlobalRouter LACP ERROR vlacpRxFrame: Incorrect PDU!. Dest Mac = 01:80:c2:00:00:0f 
CP2  [MM/DD/YY hh:mm:ss] 0x000ec5b3 00000000 GlobalRouter LACP ERROR vlacpRxFrame: Incorrect PDU!. Dest Mac = 01:80:c2:00:00:0f 
CP1  [MM/DD/YY hh:mm:ss] 0x000ec5b3 00000000 GlobalRouter LACP ERROR vlacpRxFrame: Incorrect PDU!. Dest Mac = 01:80:c2:00:00:0f
 
 
Environment
  • VOSS
Cause
  • Noticed incorrect VLACP PDUs exchanged between two connected VSP devices.
  • Issue is due to incorrect configuration.
Resolution
Configure the same reserved multicast mac-address on both sides of the devices;
  • Make sure VLACP multicast MAC address  "01:80:c2:00:00:0f" matching on both switch interfaces. Default VLACP MAC address on VOSS platform is "01:80:c2:00:11:00"

Example :

On VSP Switch

interface GigabitEthernet <Port#>
vlacp fast-periodic-time 1000 timeout short timeout-scale 5 funcmac-addr 01:80:c2:00:00:0f
vlacp enable
exit

on ERS Switch 

vlacp enable
vlacp macaddress 180.c200.f
interface Ethernet ALL
vlacp port <Port#> fast-periodic-time 1000
vlacp port <Port#> timeout short
vlacp port <Port#> timeout-scale 5
vlacp port <Port#> enable
exit

 

See chapter 5, pg. 95 for more details about VLACP
https://documentation.extremenetworks.com/VOSS/SW/80x/9035646_ConfigLinkAggVOSS_8.0_CG.pdf
 

 

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