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Cisco Bug: CSCvu29042 - APIC 4.2(2f):Unable to push external subnet to leaf policy-mgr prefix.

Last Modified

Jun 19, 2020

Products (1)

  • Cisco Application Policy Infrastructure Controller (APIC)

Known Affected Releases

4.2(2f)

Description (partial)

Symptom:
APIC 4.2(2f)/4.2(4l):::Unable to push external subnet to leaf policy-mgr prefix.

<pre>
Leaf-101# moquery -c actrlPfxEntry | grep 2654209
dn : sys/ctx-[vxlan-2654209]/pfx-[0.0.0.0/0]
dn : sys/ctx-[vxlan-2654209]/pfx-[::/0]
</pre>

Conditions:
APIC policyDist see subnet but Leaf switch not seeing subnet get pushed in policymgr. 
<pre>
APIC# moquery -c l3extSubnet | grep dn
dn           : uni/tn-AH/out-L3Out_Firewallr/instP-vlan3709/extsubnet-[172.31.x.0/24]

AHAPIC01# moquery -c actrlPfxEntry | grep -B 7 -A 13 2654209 | grep "node-101"
dn : topology/pod-1/node-101/sys/ctx-[vxlan-2654209]/pfx-[0.0.0.0/0]
dn : topology/pod-1/node-101/sys/ctx-[vxlan-2654209]/pfx-[::/0]


Leaf-101# moquery -c actrlPfxEntry | grep 2654209
dn : sys/ctx-[vxlan-2654209]/pfx-[0.0.0.0/0]
dn : sys/ctx-[vxlan-2654209]/pfx-[::/0]


Leaf101:
vsh -c "show system internal policy-mgr prefix"
Vrf-Vni VRF-Id Table-Id Table-State  VRF-Name                    Addr                                Class Shared Remote Complete
======= ======  =========== =======  ============================ ================================= ====== ====== ====== ========
2654209 4      0x4           Up     AH:Internal                                          0.0.0.0/0   15      False  False  False
2654209 4      0x80000004    Up     AH:Internal                                               ::/0   15      False  False  False
</pre>
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