topic How are S-Series I/O features (Access vs Core) determined? in FAQs https://community.extremenetworks.com/t5/faqs/how-are-s-series-i-o-features-access-vs-core-determined/m-p/51684#M734 Article ID: 12036 <BR /> <BR /> In order for a chassis to have S150 (Core) features, all S-Series I/O modules must be of the S150 class (<A href="http://bit.ly/WOt7ZF" target="_blank" rel="nofollow noreferrer noopener">12341</A>). As soon as a S130 class module is inserted, the entire chassis will revert to Access-level features. Any existing S150 feature configurations will remain and continue to function, however the system will log messages that it is incorrectly licensed. <BR /> <BR /> S150 features include Network Address Translation (NAT) and Load-Sharing Network Address Translation (LSNAT). <BR /> <BR /> Note: Prior to the expected release of S180 fabric modules and I/O modules, S140 I/O modules are supported only in the S3 Chassis (minimum firmware 8.01.01.0016) and may not be intermixed with S130 I/O modules.<BR /> Tue, 19 Nov 2013 22:00:00 GMT FAQ_User 2013-11-19T22:00:00Z How are S-Series I/O features (Access vs Core) determined? https://community.extremenetworks.com/t5/faqs/how-are-s-series-i-o-features-access-vs-core-determined/m-p/51684#M734 Article ID: 12036 <BR /> <BR /> In order for a chassis to have S150 (Core) features, all S-Series I/O modules must be of the S150 class (<A href="http://bit.ly/WOt7ZF" target="_blank" rel="nofollow noreferrer noopener">12341</A>). As soon as a S130 class module is inserted, the entire chassis will revert to Access-level features. Any existing S150 feature configurations will remain and continue to function, however the system will log messages that it is incorrectly licensed. <BR /> <BR /> S150 features include Network Address Translation (NAT) and Load-Sharing Network Address Translation (LSNAT). <BR /> <BR /> Note: Prior to the expected release of S180 fabric modules and I/O modules, S140 I/O modules are supported only in the S3 Chassis (minimum firmware 8.01.01.0016) and may not be intermixed with S130 I/O modules.<BR /> Tue, 19 Nov 2013 22:00:00 GMT https://community.extremenetworks.com/t5/faqs/how-are-s-series-i-o-features-access-vs-core-determined/m-p/51684#M734 FAQ_User 2013-11-19T22:00:00Z