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Cisco Bug: CSCvh93360 - Add note to APIC Basic Configuration Doc.

Last Modified

Aug 13, 2019

Products (1)

  • Cisco Application Policy Infrastructure Controller (APIC)

Known Affected Releases

2.2(3s)

Description (partial)

Symptom:
Some customers need LACP packets to keep being produced even though the vPC is not connected. Normally, after a timer, the links realize they are not connected and go into suspension. ACI has a feature for this exact scenario but it is hard to find. Need to add a note section to docs.

In the following section in the basic configuration doc,

 https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/basic-config/b_ACI_Config_Guide/b_ACI_Config_Guide_chapter_0101.html#id_18490

The following note should be added right after the picture.

"Note: LACP sets a port to the suspended state if it does not receive an LACP PDU from the peer. This can cause some servers to fail to boot up as they require LACP to logically bring-up the port. You can tune behavior to individual use by disabling "LACP suspend individual." To do so, create a port channel policy in your vpc policy group, and after setting the mode the LACP active, remove "Suspend Individual Port". Now the ports in the VPC will stay active and continue to send LACP packets"

Conditions:
All of ACI
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