Description

EX4100 is not able to generate expected log when exceeded max number of vmember below. This is a software bug which has been fixed in PR1752756.

> help syslog L2ALD_IFBD_COUNT_EXCEED
Name:          L2ALD_IFBD_COUNT_EXCEED
Message:       <warning-message> ; current count is <count>
Help:          Exceeded max number of vmember or ifbd supported on this paltform
Description:   When max number of ifbd/ args vmmember supported exceed due to user configuration, warning message will be generated.
Type:          Event: This message reports an event, not an error
Severity:      error
Facility:      LOG_DAEMON

Symptoms

On EX4100, L2ALD_IFBD_COUNT_EXCEED is not generated when exceeded certain number of vmember.
For example, when configured 1024 vlans to each of the 67 ports, syslog L2ALD_IFBD_COUNT_EXCEED should be generated.

Solution

The issue has been fixed through PR1752756. On the fixed version, EX4100 can generate L2ALD_IFBD_COUNT_EXCEED as expected as below.

In case of 1024 vlans on 66 ports
-------------------- 
root@EX4100# show interfaces | display set | match "interface-mode trunk" | count
Count: 66 lines

root@EX4100# run show log messages | match L2ALD_IFBD_COUNT_EXCEED
Sep  7 14:20:18  EX4100 mgd[19985]: %INTERACT-6-UI_CMDLINE_READ_LINE: User 'root', command 'run show log messages | match L2ALD_IFBD_COUNT_EXCEED '
--------------------


In case of 1024 vlans on 67 ports
-------------------- 
root@EX4100# show | compare
[edit interfaces]
+   ge-1/0/16 {
+       unit 0 {
+           family ethernet-switching {
+               interface-mode trunk;
+               vlan {
+                   members all;
+               }
+           }
+       }
+   }

{master:1}[edit]
root@EX41001# commit
configuration check succeeds

root@EX4100# show interfaces | display set | match "interface-mode trunk" | count
Count: 67 lines

Sep  7 14:20:18  EX4100 mgd[19985]: %INTERACT-6-UI_CMDLINE_READ_LINE: User 'root', command 'run show log messages | match L2ALD_IFBD_COUNT_EXCEED '
Sep  7 14:20:20  EX4100 mgd[19985]: %INTERACT-6-UI_CMDLINE_READ_LINE: User 'root', command 'run show log messages | match L2ALD_IFBD_COUNT_EXCEED '
Sep  7 14:21:10  EX4100 l2ald[19677]: %DAEMON-3-L2ALD_IFBD_COUNT_EXCEED:  ; current count is 68001
Sep  7 14:21:10  EX4100 l2ald[19677]: %DAEMON-3-L2ALD_IFBD_COUNT_EXCEED:  ; current count is 68002
Sep  7 14:21:10  EX4100 l2ald[19677]: %DAEMON-3-L2ALD_IFBD_COUNT_EXCEED:  ; current count is 68003
Sep  7 14:21:10  EX4100 l2ald[19677]: %DAEMON-3-L2ALD_IFBD_COUNT_EXCEED:  ; current count is 68004
Sep  7 14:21:10  EX4100 l2ald[19677]: %DAEMON-3-L2ALD_IFBD_COUNT_EXCEED:  ; current count is 68005
Sep  7 14:21:10  EX4100 l2ald[19677]: %DAEMON-3-L2ALD_IFBD_COUNT_EXCEED:  ; current count is 68006
Sep  7 14:21:10  EX4100 l2ald[19677]: %DAEMON-3-L2ALD_IFBD_COUNT_EXCEED:  ; current count is 68007
Sep  7 14:21:10  EX4100 l2ald[19677]: %DAEMON-3-L2ALD_IFBD_COUNT_EXCEED:  ; current count is 68008
--------------------

Modification History

2023-09-18: Created a KB.

Related Information

https://prsearch.juniper.net/PR1752756