- Written by Srinivasan Viswanathan
- Posted on March 23, 2026
- Updated on November 10, 2026
- 2375 Views
The pre-VESPA wireless GW campus solution offered redundancy by means of having primary and secondary wireless GWs that can be configured in the Access Points (APs). APs monitor the primary tunnel's health by means of periodic ICMP messages, and switch to the secondary tunnel when the primary becomes unreachable, and traffic convergence is delayed until this failover happens.
- Written by Zhenzhong Tang
- Posted on May 8, 2026
- Updated on May 8, 2026
- 664 Views
The VxLAN MAC drop feature directs all VxLAN MAC addresses to a drop destination, causing the switch to drop all egress VxLAN bridging traffic, effectively disabling VxLAN bridging on the switch. VxLAN routing is unaffected. In some VxLAN routing-only deployments, bridging tunnels are unused yet still consume hardware resources. This feature frees the tunnel hardware resources used for VxLAN bridging, which can then be allocated for VxLAN routing. This in turn allows the switch to support more remote VTEPs. Typical use cases include centralized routing gateways or spines in EVPN-VxLAN fabrics, and VESPA (Virtual Ethernet Segment with Proxy ARP) gateways in wireless campus deployments.
