Companies worked for

Cisco Systems, Inc., one of the most successful companies of the Internet era, originally manufactured only enterprise routing equipment. These days, Cisco sells a variety of devices for both enterprises and telecom carriers. These include, but are not limited to:

• Ethernet switches

• Branch office routers and CPE (Customer Premises Equipment)

• IP Telephony products such as IP PBXes (CallManager), VoIP gateways and IP phones

• Network security devices such as Firewalls and VPN concentrators

• Metro optical switching platforms

• Large telco-class core and edge routers / MPLS switches

• Carrier and enterprise ATM switches

• Cable Modem Termination Systems (CMTSes)

• DSL subscriber aggregation / concentration equipment

• Remote access and universal gateways

• Storage Area Network (SAN) switches and appliances

• Network management software and appliances