The best practices covered in this section apply to both L2 VPN over an SSL tunnel and L2 VPN over an IPSec tunnel.

Recommendation: For an optimum L2 VPN performance, preferably deploy an NSX Edge with an XLarge form factor on both client and server for the following reasons:
  • Increased TCP buffer size.
  • CPU pinning is possible in vCPU 1, 3, and 5. CPU pinning is not possible in large and quad large form factors.

Configuring L2 VPN according to best practices can avoid problems such as looping and duplicate pings and responses.