By connecting a switch to two different switches in the aggregation/distribution layer or core layer above it, the use of Link Aggregation Groups (LAG) results in extremely high availability (HA) and practically uninterrupted network operations. I recommend that every access or distribution switch will be connected to both of the core switches! in order to get the desired redundancy, as for example if now Switch Core 3COm will be down, all of switch 5,1,2 will be isolated ! the same senario for others, the only good designed one is the. Setting up redundancy in Cisco network environments is crucial for ensuring non-stop service availability and minimizing downtime. Whether you're a network engineer or an IT enthusiast, understanding how to properly configure redundant switches will enhance your network's reliability and. My question is this: to make my core redundant, could I add a second 2948 in a spanning tree configuration? The reason I ask is because spanning tree is a Layer 2 protocol, while inter-VLAN routing takes place at layer 3, so I'm wondering if in a failover scenario, the second 2948 would handle. They have a core L2/L3 with 3 L3 Meraki switches stacked. Did a firmware upgrade on the switches and their L3 routing went down. After reboots they were able to get it back up. Any suggestions? Perhaps break it up into. In this tech paper, you will learn about the key protocols for building a redundant network and discover—based on five examples—how to design highly available three-tier or two-tier networks using LANCOM products. By connecting a switch to two. I have three different networks and 2 vlans. PC0 is a member of vlan 10, PC1 is a member of vlan 20.
