To my knowledge you can add another WS-X6408A-GBIC module to your current configuration and it will run O.K. with your CatOS release. But there is Cisco Security Advisory regarding 7.5(1) CatOS version (please see the link beneath) and as such I would strongly recommend to upgrade:
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.
Introduction to SD-Access Multicast
The document describes the Cisco DNAC UI workflow introduced as part of the Cisco DNA Center1.3.3 release. The document covers the components of Multicast forwarding on SD-Access fabric and the configuration pushed to...
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