CATNIX is a distributed traffic exchange point, with 3 points of presence (PoP) in the city of Barcelona and its metropolitan area: CSUC, Equinix and bitNAP, each equipped with a switch.

The connection between CSUC, with an Arista 7280SR, and Equinix, with an Arista 7504R, is made at 100 Gbps and 40 Gbps as a backup connection. The connection between Equinix and bitNAP, PoP equipped with an Arista 7280SR, is made at a speed of 100 Gbps.

CATNIX offers 1 Gbps, 10 Gbps and 100 Gbps interfaces. It also offers aggregated ports on these speeds: 2 and 5 Gbps over 10 Gbps ports, and 20 and 50 Gbps over ports of 100 Gbps.

Private exchanges are allowed, in addition to the common IXP exchanges. There are two possibilities: separate VLAN or dedicated circuits.

Switches currently have a switching capacity of 2.16 Tbps at CSUC and bitNAP, and 25.6 Tbps at Equinix. The Arista 7280R (CSUC and bitNAP) has 48 ports of 1/10 Gbps and 6 more ports of 100 Gbps each. The Arista 7504R (Equinix) has 48 ports of 1/10 Gbps and 38 ports of 100 Gbps, with the ability to install new line cards with ports of different speeds if needed.

These switches also have redundant power supplies and a large capacity to their buffers (ultradeep buffers) that avoid microsaturations, especially between ports at very different speeds.