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Figure 2
Cisco 7600 Service Provider Applications
WAN Edge aggregation—The Cisco 7600 is an ideal platform for integrating all aspects of a point of presence (POP):
customer aggregation, Web-hosting services, and high-speed access to the backbone in a single platform. For
customer aggregation needs, the Cisco 7600, configured with the Channelized OC-12 or OC-48 optical services
modules (OSMs), or the FlexWAN with Cisco 7200 and 7500 port adapters, provides connectivity from DS0 to
OC-48. The eight-port Channelized OC-12 and two-port Channelized OC-48 OSMs provide the industry’s
highest-density DS3, OC-3, and OC-12 aggregation. Optical customer termination and backbone connectivity are
achieved through the high-speed PXF-enabled OC-3c/STM-1, OC-12c/STM-4, and OC-48c/STM-16 interfaces.
Metropolitan aggregation—The Cisco 7600 with the PXF IP service-enabled Gigabit Ethernet WAN OSM is ideally
suited for metropolitan aggregation. The Gigabit Ethernet WAN OSM supports virtual LAN (VLAN) trunking so
that multiple customers in an office building or metropolitan area can share the same Gigabit Ethernet access switch
fiber but use separate VLANs to access the service provider’s POP. The Gigabit Ethernet WAN OSM is equipped with
Cisco’s patented PXF technology to support high-touch, high-performance packet services. PXF-based traffic shaping
can be used to offer sub-rate Gigabit Ethernet connections when customers do not have enough current traffic to
justify a full Gigabit Ethernet, but may in the future. The Cisco 7600 also offers a range of choices for either Layer
2 or 3 metropolitan services based on either MPLS or traditional Ethernet forwarding schemes.
Metro Aggregation
Acct/
Billing
Server
Cisco 7600
Cisco 7600
Cisco 7600
Cisco Content
Engine
Layer 7 Content Routing
with BGP Peering
Web
Farm
Cisco 7600
Layer 2/Layer 3
VPN over MPLS
Carrier Class Ethernet over SONET
DS0 ~ OC-12
Leased Line
Aggregation
T3 ~ OC-12
Channelized
Aggregation
SONET
Ring
SONET Ring
WAN Edge
Aggregation
Internet
Data Center
OC-48
OC-48
OC-48
Service Provider
Backbone
Gigabit Ethernet
