Interface to Port Mapping in Dell servers while CentOS migration

By esupport posted Jun 10, 2020 04:11 PM

  
Problem:

Interface to Port Mapping in Dell servers while CentOS migration

When we migrate from CentOS 6.9 to 7 while upgrading to 8.2.10, there is an issue with Interfaces being assigned different Hardware MAC address and not per the order

 

For Instance:

There are A1, A2,A3 & A4 Ethernet ports on the Dell server, hence there can be Eth0, Eth1, Eth2 & Eth3.

If  customer connects to A1 and configures Eth0, the Eth0 IP would not be reachable as the Hardware MAC assigned to the Eth0 would be different.



Diagnostics:

While executing #ifconfig from the AMPCLI, we can see a different Ethernet port's Hardware MAC address would be assigned.

If we can get to the linux rescue mode, we still would not be able see the Hardware mac assigned to each of the Ethernet interfaces unless we configure every interface.



Solution

Below are the Interface-to-Hardware MAC address mapping:

 

Eth0 – port A3

Eth1 – port A4

Eth2 – port A1

Eth3 – port A2

You would be provided with the below option to chose the appropriate interface:

 

If  LAN cable connected to Port A3, then Eth0 should be configured while fresh installing during CentOS migration.

If LAN cable connected to Port A1, then Eth2 should be configured while fresh installing during CentOS migration.

Also set the interface you configure as the default interface.

 

Later you can change the ap_facing_amp_interface at the seas_config table.

 

{A defect is already being raised for this issue and will ve rectified by 8.2.10.1}

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