Without a better understanding of your logical and physical topologies, hard to suggest either.
Before replacing the 3750 stack, I would lean toward VSS being functional, reguardless of method of cutover.
Using the slow migration method, HSRP gateway transfers, is a nice method to migrate from one device to another, but your real issue is you have a single logical core and you would need to first migrate it to a dual core. For instance, since you're using a 3750 stack, is the gateway address even HSRP? If not, there can be network interruption as the gateway MAC changes.
In other words, how difficult would it be to bring a dual core on-line for slow cutover vs. just doing a one-time cut over from single core to another single core?
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...