This article will explain the kernel logs related to GENCFG_L2_INFO and get_host_gbp_src_tag logs

The "no more gencfg blobs found for major type GENCFG_L2_INFO" log message is related to the generation of configuration (gencfg) blobs for Layer 2 (L2) network information.

In Junos, gencfg is a system process that generates binary configuration data blobs that are used by various other processes and daemons in the system. 

The gencfg blobs can contain a variety of system and network configuration information, including L2 network information such as MAC addresses, VLAN tags, and interface configuration.

The log message indicates that the gencfg process has finished generating the L2 network configuration blobs for the device, and that there are no more blobs of this type to be found.

This is an informational message that does not indicate any issues or problems with the device.

"vtep_ifl_l2hdr_compute" is a Junos log message that indicates the calculation of the Layer 2 (L2) header for a VXLAN Tunnel Endpoint (VTEP) interface.

The log message "get_host_gbp_src_tag 595" likely indicates that the device is attempting to retrieve the GBP source tag for a specific host, and that the process has reached line 600 in the relevant code or script. 

Logs Messages :

var/log/messages:Oct  1 23:45:01.109 2024  kernel: get_host_gbp_src_tag 600: no more gencfg blobs found for major type GENCFG_L2_INFO
var/log/messages:Oct  1 23:45:01.109 2024  kernel: vtep_ifl_l2hdr_compute 734 host gbp src tag 0 vxlan flags 0x8 
var/log/messages:Oct  1 23:45:01.109 2024  kernel: get_host_gbp_src_tag 600: no more gencfg blobs found for major type GENCFG_L2_INFO
var/log/messages:Oct  1 23:45:01.109 2024  kernel: vtep_ifl_l2hdr_compute 734 host gbp src tag 0 vxlan flags 0x8
 
var/log/messages.1.gz:Oct  1 23:29:59.891 2024  kernel: get_host_gbp_src_tag 600: no more gencfg blobs found for major type GENCFG_L2_INFO
var/log/messages.1.gz:Oct  1 23:29:59.891 2024  kernel: get_host_gbp_src_tag 600: no more gencfg blobs found for major type GENCFG_L2_INFO
var/log/messages.1.gz:Oct  1 23:30:00.009 2024  kernel: get_host_gbp_src_tag 600: no more gencfg blobs found for major type GENCFG_L2_INFO
var/log/messages.1.gz:Oct  1 23:30:00.009 2024  kernel: get_host_gbp_src_tag 600: no more gencfg blobs found for major type GENCFG_L2_INFO
var/log/messages.1.gz:Oct  1 23:30:00.009 2024  kernel: get_host_gbp_src_tag 600: no more gencfg blobs found for major type GENCFG_L2_INFO
 

The log level of these messages should not be ERR, but debug or info.

The log don't have a service impact, and can be safe to ignore/filter these logs .

Kindly contact JTAC support to filter out the logs.