Hello,
Is there any configuration in S-Series where we can configure multiple gateway for same route in redundancy. Condition is when first gateway or next hop is not rechable then packet should flow to next gateway or hop
You can configure multiple next hops for the same route and the one with the lowest administrative distance will be preferred (Top route below).
ip route 0.0.0.0/0 192.168.0.50 1
ip route 0.0.0.0/0 192.168.0.1 2
You can also use a probe to monitor the next hop and the article below shows how to use the probe for redundant internet connections but you could simply probe the next hop and it would be removed from the route table if the probe failed.