Understanding internet peering and its importance for network performance.
The internet is not a single network — it is a network of networks. More than 70,000 autonomous systems worldwide must cooperate to deliver the seamless experience that users expect. At the heart of this cooperation lies a practice called peering. Understanding how peering works is essential for anyone involved in network operations, data centre management, or enterprise IT strategy.
What Is Internet Peering?
Internet peering is the direct interconnection between two independently operated networks for the purpose of exchanging traffic between their respective users. As Tom Paseka of Cloudflare has explained, peering is fundamentally about efficiency: rather than paying a third-party transit provider to carry traffic between two networks, those networks establish a direct link and exchange traffic at little or no incremental cost.
The result is a shorter path for data, fewer points of potential failure, and better performance for end users on both networks.
Types of Peering
Public Peering
Public peering takes place at an Internet Exchange Point (IXP), where multiple networks connect to a shared switching fabric. Each participant pays a port fee to the IXP operator and can then exchange traffic with any other participant on the exchange. Public peering is cost-effective because a single physical connection provides access to dozens or even hundreds of peer networks.
Private Peering
Private peering is a dedicated, point-to-point connection between two networks, typically established via a cross-connect within a colocation facility. Private peering is preferred when two networks exchange large volumes of traffic — often exceeding 10 Gbps — and require guaranteed capacity and isolation from other traffic on a shared exchange fabric.
How an Internet Exchange Point Works
An IXP operates a Layer 2 switching platform — typically a high-capacity Ethernet fabric — housed in a carrier-neutral data centre. Participating networks connect a router to the IXP's switch and establish BGP (Border Gateway Protocol) sessions with other participants. The key components include:
- Switching fabric — the shared network infrastructure that interconnects all participants, typically supporting 10GE, 40GE, and 100GE port speeds
- Route servers — managed BGP route reflectors that simplify multilateral peering by distributing routes from all participants to each connected network
- Looking glass and monitoring tools — platforms that provide visibility into traffic flows, BGP session status, and exchange performance
Settlement-Free vs. Paid Peering
Most peering arrangements are settlement-free, meaning neither party pays the other for the exchange of traffic. This works well when both networks derive roughly equal benefit from the arrangement. However, when traffic ratios are heavily skewed — for example, a large content provider sending far more traffic than it receives — the receiving network may negotiate paid peering terms, where the content provider compensates the access network for carrying its traffic to end users.
JBIX and the Southeast Asian Peering Landscape
Southeast Asia's peering ecosystem has historically been concentrated in Singapore, which hosts major exchanges like SGIX and Equinix Singapore. While Singapore remains the region's primary interconnection hub, the rapid growth of internet users across Malaysia, Indonesia, and Thailand has created demand for local exchange points that keep domestic traffic within national borders.
JBIX, operated by Extreme Broadband in Johor Bahru, serves this role for southern Malaysia. Its strategic location — just across the causeway from Singapore — allows it to attract both Malaysian ISPs and international content providers who want to serve Malaysian users with minimal latency. With port speeds up to 100 Gbps and a growing community of more than 30 peers, JBIX complements the existing MyIX exchange in Kuala Lumpur and helps distribute peering capacity across Peninsular Malaysia.
As internet traffic in the region continues to grow at double-digit annual rates, localised peering infrastructure like JBIX will become increasingly important. Networks that peer locally benefit from lower latency, reduced transit costs, and greater resilience — advantages that directly translate into a better experience for their end users.