In a VSX deployment, which interface commonly acts as the default gateway for VLAN 10?

In a VSX deployment, which interface commonly acts as the default gateway for VLAN 10?

• A. The switch's management interface
• B. The SVI for VLAN 10
• C. The keepalive interface
• D. The core router port

Answer: (B)

In VSX, hosts in a VLAN need a gateway address to reach other networks, and that gateway is the switch’s Layer 3 interface for that VLAN—the SVI. The SVI for VLAN 10 provides the IP address that devices in VLAN 10 use as their default gateway. Traffic from hosts in VLAN 10 is sent to this SVI, which then routes it toward other networks (either to the core or through the VSX routing setup). The management interface is for out-of-band management, the keepalive interface is only for VSX peer health, and while the core router port can be an uplink, it isn’t the per-VLAN gateway for host traffic. So the SVI for VLAN 10 is the default gateway for VLAN 10.

In VSX, hosts in a VLAN need a gateway address to reach other networks, and that gateway is the switch’s Layer 3 interface for that VLAN—the SVI. The SVI for VLAN 10 provides the IP address that devices in VLAN 10 use as their default gateway. Traffic from hosts in VLAN 10 is sent to this SVI, which then routes it toward other networks (either to the core or through the VSX routing setup). The management interface is for out-of-band management, the keepalive interface is only for VSX peer health, and while the core router port can be an uplink, it isn’t the per-VLAN gateway for host traffic. So the SVI for VLAN 10 is the default gateway for VLAN 10.