This article describes the meaning of the following logs:

• Sep 28 09:33:27 [host-name] COSMAN: media speed change cos policy update failed
• Sep 28 09:46:35 [host-name] COSMAN_FWDD: cosman_update_sched_policy_for_ifd:2929 updation of sched policy failed for ifd 146 (sp-0/0/0)
• Sep 28 09:46:35 [host-name] cosman_compute_install_sched_params: Failed to get subunit b/w for sp-0/0/0
• Sep 28 09:46:35 [host-name] fwdd_ifd_set_eff_bandwidth: can't find outq ifd entry for ifd sp-0/0/0

These "messages" logs are related to the CoSman component, which oversees class-of-service functions. These messages have already been reviewed internally and are attributed to a known product limitation. Here's a description of these log messages:

1. Context: These log messages pertain to the CoSman component, which is responsible for managing class-of-service-related functions within the system.
2. Functionality Check: During the configuration phase, CoSman functionality involves checking internal flags that relate to the interface (ifd) and logical interface (ifl) settings, even if no class-of-service configuration is in place. This behavior is essential within our design framework.
3. "Failed" Messages: In some cases, you may encounter log messages containing the term "failed." It's important to note that these messages are expected and can be safely ignored, particularly when dealing with interface configuration. No specific information related to CoSman's functionality is required in such cases.
4. Commit Phase Errors: While performing system commits, you may observe Cosman-related error messages. These errors are also expected and have no adverse impact on the system's performance or functionality. Users can safely disregard these messages without concern.
5. Class-of-Service Management: It's worth highlighting that these log messages are directly related to the management of class-of-service functions within the system and are a result of internal checks and limitations inherent to the product.

In summary, these "messages" logs have been identified as a product limitation and can be safely ignored, particularly during interface configuration and commit phases. They are part of the system's class-of-service management and should not pose any operational issues.