Cisco Cisco Dynamic Fabric Automation for OpenStack Troubleshooting Guide
Cisco Dynamic Fabric Automation Production Troubleshooting Guide
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dfa-n6k-leaf-1# show fabric forwarding internal event-history events
Process Event logs of HMM
2015 Nov 11 20:38:19.240136 hmm [4660]: [4662]: (seinfeld:vandelay) MAC: 0000.0000.000a old_port: port-
channel10(0x16000009), new_port: Gateway Port-Channel1:250(0x240010fa), vlan_id: 0x00000064, bd_id:
100, is_del: 0, Svi: V
lan100(3)
2015 Nov 11 20:38:19.240068 hmm [4660]: [4662]: Got a MAC notification from L2FM for 1 adjacencies
dfa-n6k-leaf-1# show fabric forwarding internal event-history events
Process Event logs of HMM
2015 Nov 11 20:41:18.230522 hmm [4660]: [4673]: (seinfeld:vandelay) [IPv4] Received AM notification for
Host 20.10.100.11/32, mac 0000.0000.0000, svi Vlan100, l2_port Gateway Port-Channel1:250, flags
0x00000000
2015 Nov 11 20:41:18.230465 hmm [4660]: [4673]: Received AM notification with 1 entries
fa-n6k-leaf-1# show fabric forwarding ip local-host-db vrf seinfeld:vandelay 20.10.100.11/32
[no output]
dfa-n6k-leaf-1# show ip route vrf seinfeld:vandelay
IP Route Table for VRF "default"
'*' denotes best ucast next-hop
'**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]
'%<string>' in via output denotes VRF <string>
10.1.10.0/24, ubest/mbest: 1/0, attached
*via 10.1.10.121, Vlan10, [0/0], 03:32:59, direct
10.1.10.121/32, ubest/mbest: 1/0, attached
*via 10.1.10.121, Vlan10, [0/0], 03:32:59, local
dfa-n6k-leaf-1# show ip route vrf seinfeld:vandelay
IP Route Table for VRF "seinfeld:vandelay"
'*' denotes best ucast next-hop
'**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]
'%<string>' in via output denotes VRF <string>
20.10.100.0/24, ubest/mbest: 1/0, attached
*via 20.10.100.1, Vlan100, [0/0], 00:57:48, direct, tag 12345,
20.10.100.1/32, ubest/mbest: 1/0, attached
*via 20.10.100.1, Vlan100, [0/0], 00:57:48, local, tag 12345,
20.10.100.11/32, ubest/mbest: 1/0
*via 10.1.10.123%default, [200/0], 00:00:27, bgp-65000, internal, tag 65000, segid 50000
20.10.100.12/32, ubest/mbest: 1/0, attached
*via 20.10.100.12, Vlan100, [190/0], 00:56:55, hmm
20.10.100.70/32, ubest/mbest: 1/0
*via 10.1.10.123%default, [200/0], 00:21:31, bgp-65000, internal, tag 65000, segid 50000
3.3.3 Dot1q Profile Aging and Cleanup
HMM uses a Profile Aging timer, 30 minutes by default, to check if the VLAN/BD has any MAC entries learned or not.
This timer based approach prevents rapid profile auto-config churn for networks and partitions with intermittent traffic
sources. The aging and cleanup process allows DFA leaf switches to only carry profile information that is needed for a
This timer based approach prevents rapid profile auto-config churn for networks and partitions with intermittent traffic
sources. The aging and cleanup process allows DFA leaf switches to only carry profile information that is needed for a