mirror of
https://github.com/openshift/openshift-docs.git
synced 2026-02-05 12:46:18 +01:00
20 lines
1.1 KiB
Plaintext
20 lines
1.1 KiB
Plaintext
// Module included in the following assemblies:
|
|
//
|
|
// * scalability_and_performance/optimization/optimizing-networking.adoc
|
|
|
|
:_mod-docs-content-type: CONCEPT
|
|
[id="optimizing-mtu_{context}"]
|
|
= Optimizing the MTU for your network
|
|
|
|
There are two important maximum transmission units (MTUs): the network interface controller (NIC) MTU and the cluster network MTU.
|
|
|
|
The NIC MTU is configured at the time of {product-title} installation, and you can also change the MTU of a cluster as a postinstallation task. For more information, see "Changing cluster network MTU".
|
|
|
|
For a cluster that uses the OVN-Kubernetes plugin, the MTU must be less than `100` bytes to the maximum supported value of the NIC of your network. If you are optimizing for throughput, choose the largest possible value, such as `8900`. If you are optimizing for lowest latency, choose a lower value.
|
|
|
|
[IMPORTANT]
|
|
====
|
|
If your cluster uses the OVN-Kubernetes plugin and the network uses a NIC to send and receive unfragmented jumbo frame packets over the network, you must specify `9000` bytes as the MTU value for the NIC so that pods do not fail.
|
|
====
|
|
|