Regarding the PPPoE service-name-tables max-sessions scale limit, it has been observed that the scale limits vary across platforms when compared to the MX304. We would like to understand the reason behind this variation. Specifically, there is a request to clarify whether the scale limit can be modified on the MX304 platform.

admin@LAB-MX9-DSL-MX01-re0# set protocols pppoe service-name-tables PPPOE-DELAY service any max-sessions ?
Possible completions:
<max-sessions> Maximum sessions associated with Service (1..512000)

admin@MX304-BNG-Lab-re0# set protocols pppoe service-name-tables PPPOE-DELAY service any max-sessions ?
Possible completions:
<max-sessions> Maximum sessions associated with Service (1..16000)
[edit]
 
 
Upon checking across various MX platforms, the maximum session limit is consistently 512,000, except on the MX304, where it is limited to 16,000.

For MX304, MX301, MX10004 et all platforms have product_model set to TLV.
If the model is TLV, pvidb attribute subscriber_management_supported should be checked to set the max-sessions