NEW YORK ( Trefis) -- Juniper's ( JNPR) share in bottom-layer switches, the most common type of switch that addresses layers 2-3 of network architecture, has increased from an estimated 1% in 2005 to 4% in 2009. We anticipate a more moderate pace of growth in the years ahead as the network switches market is close to saturation, and Cisco ( CSCO) continues to dominated this segment with a 55% to 60% share.

While Juniper is a relatively new entrant, it also faces competition from mid-rung players like Tellabs ( TLAB) and Alcatel-Lucent ( ALU).

While we expect Juniper's share in bottom layer switches to remain under 6% through our forecast period, the Trefis community projects that this number could continue its recent growth pace and breach 8%. The community forecast implies nearly 10% upside to our price estimate for Juniper stock.

While this upside potential is encouraging, we note that our base price estimate of $27.76 for Juniper stock stands well below market price.

Network Switches Market Becoming Saturated

The network switches market is relatively mature and close to saturation. Most of its growth is driven by replacements and upgrades, rather than new customers entering the market or existing customers expanding usage. Further, there are limits to technical innovations in bottom- layer switching and most of the upgrades center on an increase in processing speeds. As a result, competition is intense with a number of players fighting for a limited customer base. The market is extremely crowded with the likes of Alcatel-Lucent, Huawei-3Com and Hewlett-Packard ( HPQ) among others vying for the same opportunities.

Cisco's Formidable Position in Switches Market

Cisco has consistently maintained a market share of 55% to 60% in the bottom-layer switch market through strong relationships with most of its customers. Cisco has grown so widely that its brand is almost considered to be synonymous with switches. This makes it tough for any competitor to break into Cisco's market unless it comes up with a vastly superior product or collaborates with other companies.

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