AT&T maintains three suppliers for its IP domain, according to investment firm UBS. In a bulletin this week updating investors on the AT&T "domain" supplier and procurement strategy, the firm believes Cisco, Juniper and Alcatel will all remain as IP vendors to the carrier.

This, despite the AT&T domain objective of selecting only two per domain. UBS says the IP core and edge booty could be split three ways: Alcatel-Lucent and Juniper winning the edge, and Cisco and Juniper winning the core. AT&T just tested Cisco's CRS-3 router and 100G Ethernet interface, while Verizon did the same with Juniper.

 source:networkworld