I used to use Stack WS-C3650-48PD-L. I used to ring. Even I have been using  HP J9623A (https://www.allhdd.com/hp-j9623a-rack-mountable-switch/ )server for many years and It also rings. ... View more

I used to use Stack WS-c3640-48PD-L. It used to ring even My new Switch   HP J9623A (https://www.allhdd.com/hp-j9623a-rack-mountable-switch/ )   also ring  ... View more