RHEL7: Configure aggregated network links between two RHEL systems.

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Note: This is an RHCE 7 exam objective.

Presentation

There are two ways to configure aggregated network links between two RHEL systems:

Red Hat provides a page comparing the two network links aggregation methods.

Connecting two RHEL systems directly by Ethernet cables is not supported. All connections have to be done through switches.

Concerning the tutorials, all configurations are made between virtual machines. It is also the case in the RHCE 7 exam.

Additional Resources

Venkat Nagappan‘s got an interesting video explaining how to Set up Network Teaming & Bonding in CentOS 7 (20min/2015).

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9 Comments on "RHEL7: Configure aggregated network links between two RHEL systems."

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jeromeza
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jeromeza

Which is faster to do in the exam and why?

Lisenet
Member

I personally find teaming configuration slightly more time consuming compared to bonding, as it requires me to either remember JSON config, or to find/copy/edit examples that are available on a RHEL server.

David_V
Member
David_V

I have a CentOS 7.2 minimal install with dual nics on vmworkstation 11.1.4 I configured bridging like Venkat did in his video above. It works until I nmcli con down bridge0-slave2. It works if I take down bridge0-slave1.. then I can put bridge0-slave2 back up and if will not work until I use nmtui to enable the connection?! I even did a yum update while it was working.. I remember Sander saying there was an issue with bridging and NetworkManager.. anyone know what is going on?

Gjorgi
Member
Gjorgi

Have you enabled promiscous and full duplex mode on the guests’ NICs?

wpDiscuz

RHCSA7: Task of the day

Allowed time: 5 minutes.
Add 100MB of swap space to the machine using a new logical volume.

RHCE7: Task of the day

Allowed time: 8 minutes.
Set up an iScsi target based on a block backstore of 100MB called lv_iscsi with basic authentication, ext4 filesystem and standard firewall configuration.

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