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Figure 3. Typical Cisco ISR Web Security with Cisco ScanSafe Deployment
Metro Ethernet Connectivity
Cisco 890 Series Routers are ideal for service provider deployments as Metro Ethernet customer premises
equipment (CPE). The routers also provide failover protection and load balancing. The 8-port managed switch
provides enough LAN ports for connecting multiple devices, and the optional PoE capability can supply power to
IP phones or other devices. The Cisco 890 Series offers customers significant value by simplifying deployment of
Ethernet WAN services with end-to-end OA&M, service-level agreement (SLA) monitoring and verification, and
configuration management, resulting in increased operational efficiency and reduced operating expenses (OpEx).
The Cisco 890 Series supports the following Metro Ethernet features:
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E-LMI: Basic configuration for detection and isolation of connectivity in the Metro Ethernet network
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E-LMI: Automated configuration of customer edge based on profiles configured:
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Layer 2 connectivity management
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E-LMI for the customer edge
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Metro Ethernet OA&M:
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Debugging hierarchy of Ethernet networks
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Layer 2 service performance monitoring
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802.1agCFM:
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Standard that uses domains to contain OA&M flows and bound OA&M responsibilities
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802.3ah: Ethernet in the First Mile (EFM)
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Three types of packets: Continuity Check, Layer 2 Ping, and Layer 2 Traceroute
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IP SLA for Ethernet
