Introduction
This document describes the steps for remediation of ACI fault F0469.
Background Information
Fault:
F0469: fltFvBDConfigIssuesConfig-failed
Explanation:
This fault occurs when there are one or more duplicate Subnets defined for Bridge Domain (BDs) or/and AEpGs associated with the Ctx.
Recommended Action:
If you see this fault, take these actions:
- For duplicate-subnets-within-ctx issue: Find the Ctx that this BD is associated with and find all other BDs associated with the Ctx, find all the AEpGs associated with BDs found in the previous step, and verify that there are no single subnets configured for AEpGs and BDs associated with Ctx.
- For the dhcp-policy-not-present issue: Check the configuration and ensure that the DHCP Pelay Profile consumed by BD is defined in Tenant.
If this action does not resolve the issue, create a tech-support file and contact Cisco TAC.
Example 1. duplicate-subnets-within-ctx
moquery -c faultInst -f 'fault.Inst.code=="F0469"'
# fault.Inst
code : F0469
ack : no
annotation :
cause : configuration-failed
changeSet : configQual:duplicate-subnets-within-ctx, configSt:failed-to-apply, debugMessage:uni/tn-prj_e34f5d661fdc40829879720415a3dab5/BD-net_7eef8519-0731-43bd-9e3b-849c266dc83b ,uni/tn-prj_e34f5d661fdc40829879720415a3dab5/BD-net_950fc40b-be9a-4663-abdd-79e279aaca26
childAction :
created : 2021-02-26T08:17:51.577+00:00
delegated : yes
descr : BD Configuration failed for uni/tn-prj_e34f5d661fdc40829879720415a3dab5/BD-net_7eef8519-0731-43bd-9e3b-849c266dc83b due to duplicate-subnets-within-ctx: uni/tn-prj_e34f5d661fdc40829879720415a3dab5/BD-net_7eef8519-0731-43bd-9e3b-849c266dc83b ,uni/tn-prj_e34f5d661fdc40829879720415a3dab5/BD-net_950fc40b-be9a-4663-abdd-79e279aaca26
dn : topology/pod-1/node-112/local/svc-policyelem-id-0/uni/bd-[uni/tn-prj_e34f5d661fdc40829879720415a3dab5/BD-net_7eef8519-0731-43bd-9e3b-849c266dc83b]-isSvc-no/bdcfgissues/fault-F0469
domain : tenant
extMngdBy : undefined
highestSeverity : minor
lastTransition : 2021-02-26T08:20:11.597+00:00
lc : raised
modTs : never
occur : 1
origSeverity : minor
prevSeverity : minor
rn : fault-F0469
rule : fv-bdconfig-issues-config-failed
severity : minor
status :
subject : management
type : config
uid :
Get the BD information and the associated subnet.
apic# moquery -c fvSubnet
apic# moquery -c fvBD
Check the subnets deployed in order to track any overlap within the same Virtual Routing and Forwarding (VRF) (Ctx) for a different BD.
moquery -c fvSubnet | grep ^dn
Fix:
Correct the subnet overlap.
Example 2. dhcp-policy-not-present
Site1-apic1# moquery -c faultInst -f 'fault.Inst.code=="F0469"'
Total Objects shown: 2
# fault.Inst
code : F0469
ack : no
alert : no
annotation :
cause : configuration-failed
changeSet : configQual (New: dhcp-policy-not-present), configSt (New: failed-to-apply)
childAction :
created : 2024-01-23T13:43:08.484-05:00
delegated : yes
descr : BD Configuration failed for uni/tn-abc3/BD-BD1 due to dhcp-policy-not-present:
dn : topology/pod-1/node-101/local/svc-policyelem-id-0/uni/bd-[uni/tn-abc3/BD-BD1]-isSvc-no/bdcfgissues/fault-F0469
domain : tenant
extMngdBy : undefined
highestSeverity : minor
lastTransition : 2024-01-23T13:45:53.575-05:00
lc : raised
modTs : never
occur : 1
origSeverity : minor
prevSeverity : minor
rn : fault-F0469
rule : fv-bdconfig-issues-config-failed
severity : minor
status :
subject : management
title :
type : config
uid :
userdom : all
Check the DHCP label deployed for the BD in question.
Site1-apic1# moquery -c dhcpLbl
# dhcp.Lbl
name : test1
annotation :
childAction :
descr :
dn : uni/tn-abc3/BD-BD1/dhcplbl-test1
extMngdBy :
lcOwn : local
modTs : 2024-01-23T13:46:03.163-05:00
monPolDn : uni/tn-common/monepg-default
nameAlias :
owner : tenant
ownerKey :
ownerTag :
rn : dhcplbl-test1
status :
tag : yellow-green
uid : 15374
userdom : :all:
Check if the relay policy exists, in this case, it is the test1 dhcp relay policy. In the next output, you can see that the test1 dhcp relay policy does not exist, hence, the error is seen.
Site1-apic1# moquery -c dhcpRelayP | grep dn
dn : uni/tn-pk/relayp-PK-Global-DHCP-Relay-Policy
dn : uni/infra/relayp-default
Fix:
Remove the DHCP label that does not have a corresponding policy tied to it.
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