Outgrowing public peering
Public peering on the exchange LAN is efficient for many relationships. When traffic with one partner becomes very large, both sides often want a dedicated path for capacity planning and isolation.
A VXC as private peering
A Virtual Cross Connect between your port and your partner’s port creates that dedicated path without installing new hardware. You configure a BGP session over the VXC exactly as you would over a physical PNI.
Benefits
- Separate capacity planning for the partner.
- Traffic isolated from the shared peering LAN.
- Clear visibility of volume to that partner.
Practical setup
- Agree bandwidth and VLAN with your partner.
- Order the VXC.
- Configure addresses and BGP over the new VLAN.
- Prefer the private session over public peering for that partner.
When to go physical
If the relationship grows to fill a large share of your port, consider a dedicated physical interconnect.
