open-switch / opx-sai-vm

opx-sai-vm

This repository contains the SAI implementation for the OpenSwitch simulator/virtual machine.

Package

• libopx-sai-vm1_version_arch.deb — Configuration files and utility libraries  

See Architecture for more information on the SAI VM module.

© 2018 OpenSwitch project. All information is contributed to and made available by OPX under the Creative Commons Attribution 4.0 International License (available at http://creativecommons.org/licenses/by/4.0/).

opx-sai-vm's Issues

The script vm_dn_rules.sh is not copied to the target (thus not executed)

This prevents the L2 packet forwarding to properly happen in a VM environment (and possibly other data traffic functions in OPX VM).

The sai_vm_dn_rules.sh is in the "cfg" directory.

Issue discovered in OPX 2.3.1

Workaround:

1. Download the file sai_vm_dn_rules.sh from https://github.com/open-switch/opx-sai-vm/blob/master/cfg/vm_dn_rules.sh
2. Copy the file to the OPX VM, and overwrite the contents of the file /usr/bin/dn_rules.sh
3. Execute /usr/bin/dn_rules.sh
   Note. /usr/bin/dn_rules.sh is automatically executed at each restart

Annoying messages in logs

The VM port initialization presently does not implement port speed as well as requests several other attributes which are requested by the upper layers.

As a result the log fills up with messages like this:

Mar 15 14:29:13 uml-switch opx_nas_daemon[2480]: [ev_log_t_SAI_PORT:Switch Id: 0], Attr get for port id 0x1000000000004's attr index 0 attr id 8 failed with err -65536
Mar 15 14:29:13 uml-switch opx_nas_daemon[2480]: [ev_log_t_SAI_PORT:Switch Id: 0], Attr get for port id 0x1000000000005's attr index 0 attr id 8 failed with err -65536
Mar 15 14:29:13 uml-switch opx_nas_daemon[2480]: [ev_log_t_SAI_PORT:Switch Id: 0], Attr get for port id 0x1000000000006's attr index 0 attr id 8 failed with err -65536
Mar 15 14:29:13 uml-switch opx_nas_daemon[2480]: [ev_log_t_SAI_PORT:Switch Id: 0], Attr get for
port id 0x1000000000007's attr index 0 attr id 8 failed with err -65536

While these are harmless, they create a considerable amount of background noise making it difficult to follow and trace out any real problems. There seems to be some level of support for obtaining speed and other attributes via ethtool in the python scripts so it looks like some work on this has been done already.