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ONTAP advertises e0M port's MAC address as the port's Chassis ID during LLDP Multicast

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Helpful 

Applies to

  • ONTAP 9
  • LLDP Multicast

Issue

  • ONTAP advertises e0M port's MAC address as the port's Chassis ID for non-CNA ports during LLDP Multicast for Non-CNA ports.
For Non-CNA ports 
On switch end :  
# show lldp neighbors
Neighbor Neighbor Neighbor
Port Chassis ID      Port ID TTL Age System Name
===============================================================================
10 D0:39:EA:XX:YY:ZZ e0e     121 5    node3a
11 D0:39:EA:XX:YY:ZZ e0f     121 5    node3a
 
::> node run -node node3a ifconfig e0M
e0M: flags=8843<up,broadcast,running,simplex,multicast> metric 0 mtu 1500
options=6c03bb<rxcsum,txcsum,vlan_mtu,vlan_hwtagging,jumbo_mtu,vlan_hwcsum,tso4,tso6,vlan_hwtso,linkstate,rxcsum_ipv6,txcsum_ipv6>
ether D0:39:EA:XX:YY:ZZ
hwaddr D0:39:EA:XX:YY:ZZ
inet xx.yy.61.zz netmask 0xffffff00 broadcast xx.yy.61.255 Services: 0x00030408 Vserver ID: -1
media: Ethernet autoselect (1000baseT )
 
NOTE :  e0e and e0f are non-CNA ports part of 10G/25G Ethernet Controller CX5-Mezz
 
  • ONTAP advertises the respective port's MAC address as the port's Chassis ID for CNA ports during LLDP Multicast for CNA ports.
For CNA ports 
On switch end :

# show lldp neighbors
Neighbor Neighbor Neighbor
Port Chassis ID     Port ID           TTL Age System Name
===============================================================================
1 00:A0:98:YY:XX:ZZ 00:A0:98:YY:XX:ZZ 120 22  Not-Advertised 

::> node run -node node1a ifconfig e0e
e0e: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=6407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
ether 00:A0:98:YY:XX:ZZ
hwaddr 00:A0:98:YY:XX:ZZ
media: Ethernet autoselect (10Gbase-SR <full-duplex>)

NOTE :  e0e is a CNA port part of 1G/10G Ethernet Controller CNA EP 8324

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