For service providers who need to cost-effectively scale their networks in response to growing high-bandwidth demands, the Cisco 12000 Series Ten-Port Gigabit Ethernet Line Card delivers 10 dedicated Gigabit Ethernet ports ideal for intra-Point of Presence (POP) connectivity, Ethernet aggregation, and peering.
Today's service providers who want to build their IP networks with Gigabit Ethernet are looking for a high-bandwidth solution that offers reliable service and reduces operational costs. The Cisco 12000 Series offers the industry's only 10G portfolio, delivering the capacity, performance, service enablers, and operational efficiencies service providers need to support high-density Ethernet aggregation, intra-POP connectivity, and peering.
Figure 1 The Cisco 12000 Series Ten-Port Gigabit Ethernet Line Card
The Cisco 12000 Series Ten-Port Gigabit Ethernet (10-Port GE) Line Card provides 10 dedicated, Gigabit Ethernet ports per card with Cisco 12000 Series distributed system architecture and industry-leading quality-of-service (QoS) and class-of-service (CoS) features. It delivers network scalability and performance, while helping providers maintain customer service-level agreements (SLAs). When deployed in Cisco 12400 Internet routers such as the Cisco 12406 and Cisco 12404, the line card enables service providers to offer high-density, high-bandwidth solutions from within space-constrained locations.
The Cisco 12000 Series 10-Port GE is designed to interconnect Cisco 12400 Internet routers with other systems in POPs, including edge routers and Layer 2, 3, and 7 switches, providing a cost-effective, high-bandwidth solution. Each of the line card's 10 ports can be configured to support the following interface types:
The Cisco 12000 Series 10-Port GE is ideal for (IDC) connectivity, providing Ethernet configuration simplicity and ease of management. IDC connectivity often requires connecting to server farms and the Cisco 12000 Series 10-Port GE on-card high-performance forwarding engine is well-suited for this purpose with its support for high Ethernet fan-out.
Figure 2 Internet Data Center Connectivity
Many service providers have adopted Gigabit Ethernet for intra-POP connectivity to aggregate traffic from routers and switches. The Cisco 12000 Series 10-Port GE provides line-rate performance simultaneously on all 10 ports, connecting routers at the core, peering, and distribution points.
Figure 3 Gigabit Ethernet Intra-POP Connectivity
Metro ISPs provide Ethernet connectivity to multitenant buildings for business and residential markets. The Cisco 12000 Series 10-Port GE can be deployed in metro POPs and in building sites along with the Cisco 15454 Synchronous Optical Network (SONET) Multiplexer where high aggregation density is required.
Figure 4 Metro Ethernet Services
High Scalability-The Cisco 12000 Series 10-Port GE concentrates 10 full-duplex 1-Gbps Ethernet ports in one line card, increasing density per rack and overall router capacity, thereby enabling service providers to scale network architectures cost-effectively.
- High PerformanceThe Cisco 12000 Series 10-Port GE features a dedicated Layer 3 lookup engine that delivers full line-rate throughput for all Ethernet frame sizes on all 10 ports simultaneously for IP forwarding and MPLS. Both QoS and accounting features may be enabled without affecting performance. This ensures sustainable performance for IP services required today and in future new services. Service providers can scale their networks to deliver high-performance IP services with a minimum of investment.
- Comprehensive MPLS capabilitiesMPLS features, such as MPLS traffic engineering (TE) using RRR and MPLS VPN per port, support the development of service-optimized networks and can accelerate migration from circuit-based networks to packet-based networks, creating new market opportunities for service providers. (VLAN to MPLS VPN mapping is not supported.)
- Guaranteed priority packet deliveryCisco QoS support for IP and MPLS provides efficient, predictable control of network connections and reduces the cost of network operations by maximizing bandwidth utilization without affecting performance.
QoS also ensures the highest-available bandwidth with minimum delays required by time-sensitive applications such as voice over IP (VoIP) and multimedia, enabling service providers to grow revenue by offering advanced differentiated IP services. Support for IP, class of service (CoS), and QoS features include:
- Multiple virtual output queues (eight per port) optimize CoS by minimizing latency and eliminating head-of-line blocking.
- Precedence mapping allows IP packets to be delivered with QoS for different classes of applications; IP type of service (ToS) to MPLS CoS is supported.
- Weighted Random Early Detection (WRED) congestion control/query management allows selective discard of low-priority flows protecting higher-priority flows.
- Modified Deficit Round Robin (MDRR)-Class-based packet queuing controls the packet dequeuing process to guarantee transit latency for differentiated flows.
- IP load balancing enables load sharing over multiple links (eight maximum).
- Cisco Group Management Protocol (CGMP) provides efficient distribution of multicast video/data streams at all networking layers.
- Extended access control lists (xACLs) provide access control by filtering out unwanted packets. With xACLs, filtering can occur on source or destination IP addresses and transport protocols using their source and destination ports. Input ACLs up to 15,000 lines and output ACLs up to 1,024 lines are supported. Filtering is supported in hardware.
- Industry-leading Ethernet featuresTo meet high-bandwidth, scalability, and quality of service requirements in Ethernet networks, service providers need features that deliver reliability, operational simplicity, and flexibility:
- Standardized Small Form-factor Pluggable SFP (or minigigabit interface controller [GBIC]) module interfaces provide flexibility in network design by supporting transmission distances up to 550 meters or 10 kilometers. The SFP unit is hot-swappable, and SFP modules are IEEE 802.3z compliant. Modules are pluggable, enabling convenient changes between short- and long-wavelength optics on a per-port basis.
- Options for single and multimode fiber and short- and long-wavelength optics maximize interconnect flexibility in deploying fiber upgrades. Network expansion can be performed cost-effectively.
- Hot Standby Router Protocol (HSRP) and Virtual Router Redundancy Protocol (VRRP) provide automatic router backup when configured on Cisco routers that run Internet Protocol (IP).
- Virtual LAN (VLAN) accounting provides traffic statistics based on individual VLAN utilization. Counters are provided on a per-packet basis.
- Source/destination Media Access Control (MAC) accounting provides traffic statistics based on source and destination MAC addresses, enabling a provider to capture link utilization on a per-source or per-destination basis, up to 256 MAC addresses.
- Ethernet frame sizes up to 9180 bytes (jumbo frames) are supported. MPLS-enabled Ethernet frames smaller than 9180 bytes can be switched without fragmentation.
- 802.1Q VLAN combines user stations and network devices into a single unit, regardless of the physical LAN segment.
- Autonegotiation automatically selects full-duplex operation (if enabled).
- Flow control (receive) supports flow control between two devices; Rx flow is negotiated with the remote end by responding to the received PAUSE frames.
- Error-Correcting Code (ECC) circuitry is supported for enhanced memory reliability.
- Cisco 12000 Series investment protection and cost reductionLike all Cisco 12000 Series line cards, the Cisco 12000 Series 10-Port GE supports nonservice impacting online-insertion and removal (OIR), compatibility with all Cisco 12400 Internet routers, and 10G scalability.
By offering 10 dedicated Gigabit Ethernet ports with industry-leading QoS and performance within Cisco 12000 Series Internet routers that scale as your network grows, service providers can now support high-density Gigabit Ethernet aggregation, connectivity, and peering for the carrier-class Internet.
Cisco offers a wide range of service support offerings for its service provider customers. Cisco has earned the highest customer satisfaction ratings in the industry by providing the world-class service and support necessary to deploy, operate, and optimize service provider networks. Whether the goal is speed to market, maximizing network availability, or enhancing customer satisfaction and retention, Cisco is committed to its service providers' success.