VPP plugins manage basic configuration of the VPP. The management of configuration is split among multiple packages. Detailed description can be found in particular READMEs:
The default plugins can use configuration file vpp.conf to:
- set global maximum transmission unit
- set VPP resync strategy
- to enable/disable status publishers
To run the vpp-agent with vpp.conf:
vpp-agent --vpp-plugin-config=/opt/vpp-agent/dev/vpp.conf
MTU
If there is an interface without MTU set, the value from configuration file will be used. MTU is written in config as follows:
mtu: <value>
Resync Strategy
There are two strategies available for VPP resync:
- full always performs the full resync of all VPP plugins. This is the default strategy.
- optimize-cold-start evaluates the existing configuration in the VPP at first. The state of interfaces is the
decision-maker: if there is any interface configured except local0, the resync is performed normally. Otherwise
it is skipped.
IMPORTANT NOTE: Use it carefully because the state of the ETCD is not taken into consideration .
Strategy can be set in vpp.conf:
strategy: full or strategy: optimize
To skip resync completely, start vpp-agent with --skip-vpp-resync parameter. In such a case the resync is skipped
completly (config file resync strategy is not taken into account).
Status Publishers
Status Publishers define list of data syncs to which status is published.
status-publishers: [<datasync>, <datasync2>, ...]
Currently supported data syncs for publishing state: etcd and redis.