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Routing Matrix with a TX Matrix Plus Router Description


The routing matrix is a multiterabit routing system for interconnecting routers. The TX Matrix Plus router is the centralized switch-fabric chassis of the routing matrix, and connects to multiple line-card chassis (LCC).

The multichassis architecture provides scalable growth for aggregation and core services for voice, video, and data networks. It provides a flexible and cost-effective means to simplify large point-of-presence (POP) and central office environments. The routing matrix delivers high availability services from tunnel services, ATM, DS3, OC3/STM1, OC12/STM4, Gigabit Ethernet, 10-Gigabit Ethernet, 100-Gigabit Ethernet, OC48/STM16, OC192/STM64, and other high-speed interfaces.

The routing matrix leverages the intelligent virtual services capabilities of Junos OS, which enable you to create multiple application-specific logical networks over a single physical topology. This gives you the ability to virtually separate traffic types that require unique network attributes—such as ATM or high-priority voice over IP (VoIP) and third-generation (3G) mobile traffic—from bulk transit IP traffic.

The routing matrix architecture cleanly separates control operations from packet-forwarding operations. This design eliminates processing and traffic bottlenecks, permitting the routing matrix to achieve terabit performance levels.

  • Control operations in the routing matrix are performed by the host subsystem, which runs Junos OS to handle traffic engineering and configuration management.

  • High availability, interchassis communications are provided by an Ethernet LAN that interconnects the host subsystems in the TX Matrix Plus router switch-fabric chassis (SFC) and the line-card chassis (LCC) routers.

Switch-Fabric Chassis

A TX Matrix Plus router is also referred to as a switch-fabric chassis (SFC). The command-line interface (CLI) uses sfc to refer to the TX Matrix Plus router. You manage the routing matrix by connecting the TXP-CB in the TX Matrix Plus router to external management devices. For more information, see TX Matrix Plus Switch-Fabric Chassis Description and TX Matrix Plus Switch-Fabric Chassis Configuration Size and Chassis Number.

Line-Card Chassis

A T1600 or T4000 router connected to an SFC is referred to as a line-card chassis (LCC). The CLI and some labels on hardware components use LCC or lcc to refer to a specific T1600 or T4000 LCC in a routing matrix. For more information, see Line-Card Chassis Description and Line-Card Chassis ID .