Cisco's P-OTS: Denser and distributed

Cisco Systems’ carrier packet transport (CPT) product family adds metro packet optical transport to its existing switch and router offerings.

Cisco claims the CPT is its second-generation packet optical transport system (P-OTS), complementing the ONS 15454. But some analysts view the CPT as the vendor’s first true packet optical transport product.

"This announcement is an acknowledgement that P-OTS equipment is important and that operators are insisting on it"

Sterling Perrin, Heavy Reading

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AT&T domain suppliers

Date	Domain	Partners
Sept 2009	Wireline Access	Ericsson
Feb 2010	Radio Access Network	Alcatel-Lucent, Ericsson
April 2010	Optical and transport equipment	Ciena
July 2010	IP/MPLS/Ethernet/Evolved Packet Core	Alcatel-Lucent, Juniper, Cisco

The table shows the selected players in AT&T's domain supplier programme announced to date.

AT&T has stated that there will likely be eight domain supplier categories overall so four more have still to be detailed.

Looking at the list, several thoughts arise:

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Wireless backhaul: The many routes to packet

What is being announced?

ECI Telecom has detailed its wireless backhaul offering that spans the cell tower to the metro network. The 1Net wireless backhaul architecture supports traditional Sonet/SDH to full packet transport, with hybrid options in between, across various physical media.

“We can support any migration scheme an operator may have over any type of technology and physical medium, be it copper, fibre or microwave,” says Gil Epshtein, senior product marketing manager, network solutions division at ECI Telecom.

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