PTX5000 Host Subsystem

Routing Engine Slots

You can install one or two Routing Engines in the PTX5000. The Routing Engines install into the Control Boards labeled CB0 and CB1. If two Routing Engines are installed, one functions as the primary and the other acts as the backup. If the primary Routing Engine fails or is removed and the backup is configured appropriately, the backup restarts and becomes the primary.

Routing Engine Functions

The Routing Engine handles all routing protocol processes, as well as the software processes that control the PTX5000 router's interfaces, the chassis components, system management, and user access to the PTX5000. The routing and software processes run on top of a kernel that interacts with the Packet Forwarding Engine.

The Routing Engine constructs and maintains one or more routing tables. From the routing tables, the Routing Engine derives a table of active routes, called the forwarding table, which is then copied into the Packet Forwarding Engine. The design of the ASICs allows the forwarding table in the Packet Forwarding Engine to be updated without interrupting forwarding performance.

The Routing Engine includes the following functions and features:

• Processing of routing protocol packets—The Routing Engine handles all packets that concern routing protocols, freeing the Packet Forwarding Engine to handle only packets that represent Internet traffic.

• Software modularity—Because each software process is devoted to a different function and uses a separate process space, the failure of one process has little or no effect on the others.

• In-depth Internet functionality—Each routing protocol is implemented with a complete set of Internet features and provides full flexibility for advertising, filtering, and modifying routes. Routing policies are set according to route parameters (for example, prefix, prefix lengths, and BGP attributes).

• Scalability—Junos OS routing tables have been designed to hold all the routes in current networks with ample capacity for expansion. Additionally, Junos OS can efficiently support large numbers of interfaces and virtual circuits.

• Management interface—Different levels of system management tools are provided, including the Junos OS command-line interface (CLI), the Junos XML management protocol, the craft interface, and SNMP.

• Storage and change management—Configuration files, system images, and microcode can be held and maintained in primary and secondary storage systems, permitting local or remote upgrades.

• Monitoring efficiency and flexibility—The PTX5000 supports functions such as alarm handling and packet counting on every port, without degrading packet-forwarding performance.

RE-DUO-C2600-16G Routing Engine Components

Each Routing Engine (shown in Figure 1) consists of the following components:

• CPU—Runs Junos OS to maintain the routing tables and routing protocols.

• DRAM—Provides storage for the routing and forwarding tables and for other Routing Engine processes.

• EEPROM—Stores the serial number of the Routing Engine.

• Interfaces for management access—Provide information about Routing Engine status to the external management devices (console, laptop, or terminal server) connected to the management ports on the Control Board.

Figure 1: RE-DUO-C2600 Routing Engine

1 — Extractor clips	5 — USB LED
2 — SSD and CompactFlash card slot cover	6 — Offline button
3 — LEDs—DISK1, DISK2, and CF	7 — Online LED
4 — USB port	8 — Reset button

The faceplate of the Routing Engine contains the following:

• USB port USB—Provides a removable media interface through which you can install Junos OS manually. Junos OS supports USB versions 2.0 and 1.1.

• CompactFlash card slot —Provides primary storage for software images, configuration files, and microcode.

• Two solid-state disk slots Disk 1 and Disk 2—Provide secondary storage for log files, memory dumps, and rebooting the system if the CompactFlash card fails.

  Note:

  Disk 2 is not currently supported.

• Reset button—Reboots the Routing Engine when pressed.

• Offline button—Takes the Routing Engine offline when pressed.

• Extractor clips—Control the locking system that secures the Routing Engine.

• LEDs—PTX5000 Routing Engine LEDs describes the functions of these LEDs.

RE-PTX-X8-64G Routing Engine Components

Figure 2: RE-PTX-X8-64G Routing Engine Components

1 — Extractor clips	4 — RESET button
2 — LEDs—DISK1, DISK2, and ONLINE	5 — USB0 and USB1 ports
3 — ONLINE/OFFLINE button	6 — SSD card slot cover

Each Routing Engine (shown in Figure 2) consists of the following components:

• CPU—Runs Junos OS to maintain the routing tables and routing protocols. The CPU is an eight-core CPU with core frequency of 2.3 GHz.

• DRAM—Provides storage for the routing and forwarding tables and for other Routing Engine processes.

• EEPROM—Stores the serial number of the Routing Engine.

The faceplate of the Routing Engine contains the following:

• Two USB ports USB0 and USB1—Provide a removable media interface through which you can install Junos OS manually. Junos OS supports USB versions 3.0, 2.0, and 1.1.

• Two solid-state drive slots for the primary SSD SSD1 and the secondary SSD SSD2—Provide storage for software images, configuration files, microcode, log files, and memory dumps. The Routing Engine reboots the system from SSD2 when booting from SSD1 fails.

• RESET button—Reboots the Routing Engine when pressed.

• ONLINE/OFFLINE button—Takes the Routing Engine offline or brings it online when pressed.

  Note:

  The ONLINE/OFFLINE button must be pressed for a minimum of 4 seconds for the power off or power on to occur.

• Extractor clips—Control the locking system that secures the Routing Engine.

• LEDs—PTX5000 Routing Engine LEDs describes the functions of these LEDs.

RE-PTX-X8-128G Routing Engine Components

The RE-PTX-X8-128G Routing Engine has increased memory and storage to support virtualization. The Routing Engine is equipped with an 8 Core 2.3 GHz processor, 128GB Memory, and two 200GB SSDs. It also supports Secure Boot for enhanced boot security.

Figure 3: RE-PTX-X8-128G Routing Engine Components

1 — Extractor clips	4 — RESET button
2 — LEDs—DISK1, DISK2, and ONLINE	5 — USB0 and USB1 ports
3 — ONLINE/OFFLINE button	6 — SSD card slot cover

Each Routing Engine (shown in Figure 3) consists of the following components:

• CPU—Runs Junos OS to maintain the routing tables and routing protocols. The CPU is an eight-core CPU with core frequency of 2.3 GHz.

• DRAM—Provides storage for the routing and forwarding tables and for other Routing Engine processes.

• EEPROM—Stores the serial number of the Routing Engine.

The faceplate of the Routing Engine contains the following:

• Two USB ports USB0 and USB1—Provide a removable media interface through which you can install Junos OS manually. Junos OS supports USB versions 3.0, 2.0, and 1.1.

• Two solid-state drive slots for the primary SSD SSD1 and the secondary SSD SSD2—Provide storage for software images, configuration files, microcode, log files, and memory dumps. The Routing Engine reboots the system from SSD2 when booting from SSD1 fails.

• RESET button—Reboots the Routing Engine when pressed.

• ONLINE/OFFLINE button—Takes the Routing Engine offline or brings it online when pressed.

  Note:

  The ONLINE/OFFLINE button must be pressed for a minimum of 4 seconds for the power off or power on to occur.

• Extractor clips—Control the locking system that secures the Routing Engine.

• LEDs—PTX5000 Routing Engine LEDs describes the functions of these LEDs.

Routing Engine Boot Sequence

The Routing Engine boots from the storage media in this order: the USB device (if present), the CompactFlash card CF (if present), the disk (if present) in slot 1 Disk1, and then the LAN.

Booting in an RE-PTX-X8-64G and RE-PTX-X8-128G Routing Engines follows this sequence—the USB device, SSD1, SSD2, and LAN. SSD1 is the primary boot device. The boot sequence is tried twice for SSD1 and SSD2.

Routing Engine LEDs (RE-DUO-C2600-16G)

Three LEDs—Online, CF, and Disk1—indicate the status of the Routing Engine (see Figure 4).

Figure 4: RE-DUO-C2600-16G Routing Engine LEDs

1 — CF and Disk1 LEDs. Disk 2 is not used.	3 — Online LED
2 — USB LED

Routing Engine LEDs (RE-PTX-X8-64G and RE-PTX-X8-128G)

Figure 5: RE-PTX-X8-64G Routing Engine LEDs

1 — DISK1 LED	4 — ONLINE/OFFLINE button
2 — DISK2 LED	5 — RESET button
3 — ONLINE LED

PTX1000 Routing Engines

Table 3 lists the Routing Engine supported on the PTX1000.

PTX3000 Routing Engines

Table 4 lists the Routing Engines supported on the PTX3000.

PTX5000 Routing Engines

Table 5 lists the Routing Engines supported on the PTX5000.

PTX10008 and PTX10016 Routing Engines

Table 6 lists the Routing Engines supported on the PTX10008 and PTX10016 routers.

PTX Series Routing Engine Specifications

Table 7 lists the current specifications for Routing Engines supported on the PTX Series.

Control Board Slots

You can install up to two Control Boards in the PTX5000. Control Boards install into the rear of the chassis in the slots labeled CB0 and CB1. A Routing Engine installs directly into a slot on each Control Board. The Control Boards cannot function if a Routing Engine is not present.

If the PTX5000 contains a redundant host subsystem, one host subsystem functions as the primary and the other as its backup. If the primary fails or is removed, the backup becomes the primary. The backup becomes the primary automatically only if graceful Routing Engine switchover (GRES) is enabled. Otherwise, manual intervention is required for a host subsystem to acquire primary role.

Control Board Function

Each Control Board works with the Routing Engine to provide the following control and monitoring functions for the PTX5000:

• Determining Routing Engine primary role

• Controlling power and reset for the other PTX5000 components

• Monitoring and controlling fan speed

• Monitoring system status

Control Board CB-PTX Components

Each Control Board consists of the following components :

• Ethernet switch used for intermodule communication

• PCI bus to the Routing Engines

• Switch Processor Mezzanine Board (SPMB)

Figure 6 shows the Control Board faceplate.

Figure 6: Control Board

1 — MASTER, FAIL, and OK status LEDs	5 — HOST/ETHERNET port
2 — ONLINE/OFFLINE button	6 — 10-Gigabit Ethernet ports labeled (X)GE 0 (X)GE 3
3 — CONSOLE port	7 — Gigabit Ethernet port labeled GE 4
4 — AUX port

The following components are located on the Control Board faceplate:

• A slot for installation of the Routing Engine.

• Three status LEDs—MASTER, FAIL, and OK—indicate the status of the Control Board.

• ONLINE/OFFLINE button, located to the right of the status LEDs.

• Three RJ-45 management ports for connecting the Routing Engine to external management devices. The management ports on each Control Board connect to the Routing Engine installed into that Control Board. From these management devices, you can use the CLI to configure and manage the PTX5000. Each Control Board includes the following ports:

  • HOST/ETHERNET—10/100/1000-Mbps Ethernet port for connecting to a management network. This port connects the Routing Engine through a copper 10/100/1000BASE-T Ethernet connection to a management LAN (or any other device that plugs into an Ethernet connection) for management of the PTX5000. The port uses an autosensing RJ-45 connector to support 10-Mbps, 100-Mbps, or 1-Gbps connections. Two small LEDs on the bottom edge of the port indicate the port speed and traffic on the port. The left LED is labeled Y=10/100 G=1000, and the right LED is labeled ACT.

  • CONSOLE—One copper 9600 baud port for connecting the Routing Engine to a system console through a copper cable with RJ-45 connectors.

  • AUX— One copper 9600 baud port for connecting the Routing Engine to a laptop, modem, or other auxiliary device through a copper cable with RJ-45 connectors.

  Note:

  If a PTX5000 contains two host subsystems, connect both Control Boards to your external management network.

• Four 10-Gigabit Ethernet SFP+ fiber-optic ports— labeled (X)GE0 through (X)GE3—located to the right of the management ports.

  Two port LEDs—labeled LINK and ACT—located below the 10-Gigabit Ethernet ports port indicate the port speed and activity.

  Note:

  These ports are reserved for future use.

• Gigabit Ethernet SFP fiber-optic or copper port— labeled GE4—located to the right of the 10-Gigabit Ethernet ports.

  Note:

  This port is reserved for future use.

Control Board CB2-PTX Components

Each Control Board consists of the following components:

• Ethernet switch used for intermodule communication

• PCI Express switch to connect to the SIBs

• Switch Processor Mezzanine Board (SPMB)

Figure 7 shows the Control Board faceplate.

Figure 7: Control Board (CB2-PTX)

1 — LCL-MASTER, FAIL, and OK status LEDs	5 — HOST/ETHERNET port
2 — ONLINE/OFFLINE button	6 — Gigabit Ethernet ports labeled (X)GE 0 through (X)GE 17
3 — CONSOLE port	7 — MASTER, STBY, and RDY status LEDs
4 — AUX port

The following components are located on the Control Board faceplate:

• A slot for installation of the Routing Engine.

• Three status LEDs—LCL-MASTER, FAIL, and OK—indicate the status of the Control Board.

• ONLINE/OFFLINE button, located to the right of the status LEDs.

• Three RJ-45 management ports for connecting the Routing Engine to external management devices. The management ports on each Control Board connect to the Routing Engine installed into that Control Board. From the external management devices, you can use the CLI to configure and manage the PTX5000. Each Control Board includes the following ports:

  • HOST/ETHERNET—10/100/1000-Mbps Ethernet port for connecting to a management network. This port connects the Routing Engine through a copper 10/100/1000BASE-T Ethernet connection to a management LAN (or any other device that plugs into an Ethernet connection) for management of the PTX5000. The port uses an autosensing RJ-45 connector to support 10-Mbps, 100-Mbps, or 1-Gbps connections. Two small LEDs on the bottom edge of the port indicate the port speed and traffic on the port. The left LED is labeled LINK, and the right LED is labeled ACT to indicate port speed and activity.

  • CONSOLE—One 9600-baud-rate console port for connecting the Routing Engine to a system console through a copper cable with RJ-45 connectors.

  • AUX— One 9600-baud-rate console port for connecting the Routing Engine to a laptop, modem, or other auxiliary device through a copper cable with RJ-45 connectors.

  Note:

  If a PTX5000 contains two host subsystems, connect both Control Boards to your external management network.

• Eighteen 10-Gigabit Ethernet SFP+ fiber-optic ports—labeled (X)GE0 through (X)GE17—located to the right of the management ports. These ports are reserved for future use. However, (X)GE14 and (X)GE15 are configured as 1-Gigabit Ethernet ports.

• MASTER, STBY, and RDY LEDs—For multichassis applications. These LEDs are reserved for future use.