Table Of Contents
LED Matrix Boot Stage and Runtime Display
LED Matrix CAN Bus Controller Error Display
Processor-to-Processor Communication
Route Processor/Fabric Interconnect
40-Port Gigabit Ethernet (40x1GE) Line Card
8-Port 10-Gigabit Ethernet (8x10GE) 2:1 Oversubscribed Line Card
4-Port 10-Gigabit Ethernet (4x10GE) Line Card
8-Port 10-Gigabit Ethernet (8x10GE) 80 Gbps Line Rate Card
2-Port 10-Gigabit Ethernet + 20-Port 1-Gigabit Ethernet (2x10GE + 20x1GE) Combination Line Card
16-Port 10-Gigabit Ethernet (16x10GE) Oversubscribed Line Card
24-Port 10-Gigabit Ethernet Line Card
2-Port 100-Gigabit Ethernet Line Card
20-Port Gigabit Ethernet Modular Port Adaptor
4-Port 10 Gigabit Ethernet Modular Port Adaptor
Power System Functional Description
Power Module Status Indicators
DC Power Shelf Power Feed Indicator
Cooling System Functional Description
Temperature Sensing and Monitoring
System Management and Configuration
Functional Description
This chapter provides a functional description of the Cisco ASR 9000 Series Router, the Route Switch Processor (RSP) cards, the Ethernet line cards, the power and cooling systems, as well as various subsystems, such as management and configuration, and alarms and monitoring.
This chapter includes the following sections:
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Cooling System Functional Description
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Router Operation
The Cisco ASR 9000 Series routers are fully distributed routers using a switch fabric to interconnect a series of chassis slots, each of which can hold one of several types of line cards. Each line card in the Cisco ASR 9000 Series has integrated I/O and forwarding engines, plus sufficient control plane resources to manage line card resources. Two slots in the chassis are reserved for RSP cards to provide a single point of contact for chassis provisioning and management.
Figure 2-1 shows the platform architecture of the Cisco ASR 9000 Series Router.
Figure 2-1 Cisco ASR 9000 Series Router Platform Architecture
Figure 2-2 shows the major system components and interconnections of the Cisco ASR 9000 Series Router.
Figure 2-2 Major System Components and Interconnections in the Cisco ASR 9000 Series Router
Figure 2-3 Additional System Components in the Cisco ASR 9000 Series Router
Route Switch Processor Card
The Route Switch Processor (RSP) card is the main control and switch fabric element in the Cisco ASR 9000 Series router. The RSP card provides system control, packet switching, and timing control for the system.
To provide redundancy, there can be two RSP cards in the system, one as the active control RSP and the other as the standby RSP. The standby RSP takes over all control functions should the active RSP fail.
Figure 2-4 shows the front panel connectors and indicators of the RSP card.
Figure 2-4 RSP Card Front Panel Indicators and Connectors
Figure 2-5 shows the front panel of the RSP-440 card.
Figure 2-5 RSP-440 Card Front Panel
Front Panel Connectors
This section describes the front panel ports and connectors of the RSP card.
Management LAN Ports
Two triple-speed (10M/100M/1000M) management LAN RJ-45 connectors are provided for use as out-of-band management ports. The speed of the management LAN is autonegotiated.
Console Port
The EIA/TIA-232 RJ-45 Console Port provides a data circuit-terminating equipment (DCE) interface for connecting a console terminal. This port defaults to 9600 Baud, 8 data, no parity, 1 stop bit with software handshake.
Auxiliary Port
The EIA/TIA-232 RJ-45 Auxiliary port provides a data circuit-terminating equipment (DCE) interface that supports flow control. Use this port to connect a modem, a channel service unit (CSU), or other optional equipment for Telnet management. This port defaults to 9600 Baud, 8 data, no parity, 1 stop bit with software handshake.
Alarm Out
Alarm circuitry on the RSP activates dry contact closures that are accessible through the nine-pin Alarm Out connector on the RSP front panel. Each RSP card drives a set of three alarm output contacts. Both normally-open and normally-closed contacts are available.
Only the active RSP drives the alarm outputs. Should a switchover to the standby RSP occur, the newly active RSP drives the alarm outputs.
Synchronization Ports
The SYNC 0 and SYNC 1 ports are timing ports that can be configured as Building Integrated Timing System (BITS) ports. A BITS port provides a connection for an external synchronization source to establish precise frequency control at multiple network nodes, if required for your application. The RSP card contains a Synchronous Equipment Timing Source (SETS) that can receive a frequency reference from an external BITS timing interface or from a clock signal recovered from any incoming interface, such as a Gigabit Ethernet, 10-Gigabit Ethernet, or SONET interface. The RSP SETS circuit filters the received timing signal and uses it to drive an outgoing Ethernet interface or BITS output port.
The timing port(s) can also be configured as J.211 or UTI ports. A Universal Timing Interface (UTI) port is used to connect to an external UTI server to synchronize timing and frequency across multiple routers. The timing function allows precise synchronization of real-time clocks in a network for measurements of network performance, for example, measuring delay across a VPN. The frequency reference acts like a BITS input.
Front Panel Indicators
The RSP card has eight discrete LED indicators as well as an LED matrix for display of system information. The RSP-440 adds three USB-specific LEDs.
Table 2-1 shows the display definitions of the eight discrete LEDs on the RSP front panel and the three RSP-440 specific USB LEDs.
LED Matrix Display
The LED matrix displays one row of four characters. The matrix becomes active when the CPU powers on and displays the stages of the boot process, as well as displaying runtime information during normal operation. If there are CAN Bus Controller problems, error messages are displayed.
LED Matrix Boot Stage and Runtime Display
Table 2-2 describes the RSP LED matrix displays of the stages of the boot process and runtime information.
Table 2-3 describes the RSP-440 LED matrix displays of the stages of the boot process and runtime information.
Not all of these messages are seen during a successful boot up process because the screen is updated too quickly for the message to be visible. A failure detected during the boot up process results in the message remaining visible indicating the stage where the boot up process stopped.
When possible, the RSP card logs the failure information and reboots.
LED Matrix CAN Bus Controller Error Display
Table 2-4 shows the error messages the LED matrix displays if the RSP card fails one of the power on self tests.
Table 2-5 shows the error messages the LED matrix displays if the RSP-440 card fails one of the power on self tests or if the RSP-440 CPU cannot communicate with the CAN Bus Controller .
Push Buttons
Two push buttons are provided on the RSP card front panel.
Alarm Cutoff (ACO)—ACO activation suppresses alarm outputs. When the ACO button is pushed while critical alarms are active, the ACO LED turns on and the corresponding alarm output contacts revert to the normally open (non-alarm) state, thus suppressing the alarm. If subsequent critical alarms are detected and activated after the ACO activation, the ACO function is deactivated to notify the user of the arrival of the new alarm(s). In this case, the ACO LED will turn off and any active alarms are again indicated by driving their alarm output contacts to the alarm state.
Lamp Test—When the Lamp Test button is pushed, the RSP status LED, line card status and port LEDs, and Fan Tray LEDs light until the button is released. The LED matrix display is not affected.
Functional Description
The switch fabric and route processor functions are combined on a single RSP card. The RSP card also provides shared resources for backplane Ethernet, timing, and chassis control. Redundant RSP cards provide the central point of control for chassis provisioning, management, and data-plane switching.
Switch Fabric
The switch fabric portion of the RSP card links the Ethernet line cards together. In the Cisco ASR 9000 Series routers, the switch fabric is configured as a single stage of switching with multiple parallel planes. The fabric is responsible for getting packets from one line card to another, but has no packet processing capabilities. Each fabric plane is a single-stage, nonblocking, packet-based, store-and-forward switch. To manage fabric congestion, the RSP card also provides centralized Virtual Output Queue (VOQ) arbitration.
In systems with the RSP-2 card the switch fabric is capable of delivering 80 Gbit/s per slot. In systems with the RSP-440 card the switch fabric is capable of delivering over 200Gbps per Line Card slot.
The switch fabric is 1+1 redundant, with one copy of the fabric on each redundant RSP card. Each RSP card carries enough switching capacity to meet the router throughput specifications, allowing for full redundancy.
Figure 2-6 shows the switch fabric interconnections.
Figure 2-6 Switch Fabric Interconnections
Unicast Traffic
Unicast traffic through the switch is managed by a VOQ scheduler chip. The VOQ scheduler ensures that a buffer is available at the egress of the switch to receive a packet before the packet can be sent into the switch. This mechanism ensures that all ingress line cards have fair access to an egress card, no matter how congested that egress card may be.
The VOQ mechanism is an overlay, separate from the switch fabric itself. VOQ arbitration does not directly control the switch fabric, but ensures that traffic presented to the switch will ultimately have a place to go when it exits the switch, preventing congestion in the fabric.
The VOQ scheduler is also one-for-one redundant, with one VOQ scheduler chip on each of the two redundant RSP cards.
Multicast Traffic
Multicast traffic is replicated in the switch fabric. For multicast (including unicast floods), the Cisco ASR 9000 Series routers replicate the packet as necessary at the divergence points inside the system, so that the multicast packets can replicate efficiently without having to burden any particular path with multiple copies of the same packet.
The switch fabric has the capability to replicate multicast packets to downlink egress ports. In addition, the line cards have the capability to put multiple copies inside different tunnels or attachment circuits in a single port.
There are 64K Fabric Multicast Groups (RSP 2-based line cards) or 128K Fabric Multicast Groups (RSP 440-based line cards) in the system, which allow the replication to go only to the downlink paths that need them, without sending all multicast traffic to every packet processor. Each multicast group in the system can be configured as to which line card and which packet processor on that card a packet is replicated to. Multicast is not arbitrated by the VOQ mechanism, but it is subject to arbitration at congestion points within the switch fabric.
Route Processor Functions
The Route Processor (RP) performs the ordinary chassis management functions. The Cisco ASR 9000 Series runs Cisco IOS XR software, so the RP runs the centralized portions of the software for chassis control and management.
Secondary functions of the RP include boot media, Building Integrated Timing Supply (BITS) timing, precision clock synchronization, backplane Ethernet communication, and power control (through a separate CAN bus controller network).
A key function of the RP is to be able to communicate with line cards and the other route processor card in the chassis through the switch fabric.
The RP also communicates with other route processors and linecards over a switched Ethernet out-of-band channel (EOBC) for management and control purposes. The only case where the switch fabric path is used is for packets.
Figure 2-7 shows the route processor interconnections.
Figure 2-7 Route Processor Interconnections
Processor-to-Processor Communication
The RSP card communicates with the control processors on each line card through the Ethernet Over Backplane Channel (EOBC) Gigabit Ethernet switch. This path is for processor-to-processor communication, such as IPC (InterProcess Communication). The Active RSP card also uses the EOBC to communicate to the Standby RSP card, if installed.
Route Processor/Fabric Interconnect
To enable communication with the switch fabric, the RSP card has a fabric interface chip attached to the fabric and linked to the RP through a Gigabit Ethernet interface through a packet diversion FPGA. This path is used for external traffic diverted to the RSP card by line card network processors.
The packet diversion FPGA has three key functions:
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Ethernet Line Cards
Table 2-6 lists the Ethernet line cards available for the Cisco ASR 9000 Series Routers.
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Table 2-6 Ethernet Line Cards Available for the Cisco ASR 9000 Series Router
40-port Gigabit Ethernet (40x1GE) line card
SFP1
8-port 10-Gigabit Ethernet (8x10GE) 2:1 oversubscribed line card
XFP2
4-port 10-Gigabit Ethernet (4x10GE) line card
XFP
8-port 10-Gigabit Ethernet (8x10GE) 80G line rate card
XFP
2-port 10-Gigabit Ethernet plus 20-port Gigabit Ethernet (2x10GE + 20x1GE) combination line card
XFP for 10GE ports
SFP for 1GE ports
16-port 10-Gigabit Ethernet (16x10GE) oversubscribed line card
SFP+3
24-Port 10GE DX Line Card, Packet Transport Optimized Requires SFP+ Modules
SFP+
24-Port 10GE DX Line Card, Service Edge Optimized Requires SFP+ Modules
SFP+
2-Port 100GE DX Line Card, Packet Transport Optimized Requires SFP+ Modules
SFP+
2-Port 100GE DX Line Card, Service Edge Optimized Requires SFP+ Modules
SFP+
80 Gigabyte Modular Line Card, Packet Transport Optimized
N/A
80 Gigabyte Modular Line Card, Service Edge Optimized
N/A
20-Port GE Modular Port Adapter (MPA)
SFP
4-Port 10GE Modular Port Adapter (MPA)
SFP+
1 SFP = Gigabit Ethernet small form-factor pluggable transceiver module
2 XFP = 10-Gigabit Ethernet small form-factor pluggable transceiver module
3 SFP+ = 10-Gigabit Ethernet small form-factor pluggable transceiver module
Functional Description
Ethernet line cards for the Cisco ASR 9000 Series Router provide forwarding throughput of line rate for packets as small as 64 bytes. The small form factor pluggable (SFP , SFP+, or XFP) transceiver module ports are polled periodically to keep track of state changes and optical monitor values. Packet features are implemented within network processor unit (NPU) ASICs (see Figure 2-8).
Figure 2-8 General Line Card Data Plane Block Diagram
Most of the line cards have four NPUs per card (the 80 G line rate card has eight). The 2-Port 100GE DX line card has eight NPUs per card, while the 2-Port 100GE DX line card, the 80 gigabyte modular line card, and the modular port adapters (MPAs) they support have four NPUs per card. There are two data paths from the NPUs. The primary path is to a bridge FPGA, which manipulates the header and does interface conversion, then to the fabric interface ASIC where packets are where packets are queued using VOQ and then sent to the backplane where they flow to the RSP fabric. This path handles all main data and also control data that are routed to the RSP card CPU. The second path is to the local CPU through a switched Gigabit Ethernet link. This second link is used to process control data routed to the line card CPU or packets sent to the RSP card through the fabric link.
The backplane Gigabit Ethernet links, one to each RSP card, are used primarily for control plane functions such as application image download, system configuration data from the IOS XR software, statistics gathering, and line card power-up and reset control.
Note
A CAN bus controller (CBC) supervises power supply operation and power-on reset functions. The CBC local 3.3 V regulator uses 10 V from the backplane to be operational at boot up. It then controls a power sequencer to control the power-up of the rest of the circuits on the card.
Each NPU can handle a total of approximately 25 to 30 million packets per second, accounting for ingress and egress, with a simple configuration. The more packet processing features enabled, the lower the packets per second that can be processed in the pipeline. This corresponds to up to 15 Gbps of bidirectional packet processing capability for an NPU. There is a minimum packet size of 64 bytes, and a maximum packet size of 9 KB (9216) from the external interface. The NPU can handle frames up to 16 KB, and the bridge FPGA and fabric interface chip have been designed to handle a frame size of 10 KB.
Packet streams are processed by the NPUs and are routed either locally over the Gigabit Ethernet link to the local CPU or to the RSP fabric card through two bridge FPGAs and the fabric interface chip. The total bandwidth of the path from four NPUs to two bridge FPGAs is 60 Gbps. The total bandwidth of the path from the two bridge FPGAs to the fabric interface chip is 60 Gbps. The total bandwidth from fabric interface chip to the backplane is 46 Gbps redundant. The fabric interface chip connects through four 23 Gbps links to the backplane.
Each NPU can handle up to 15 Gbps of line rate traffic (depending on the packet size and processing requirements). The line cards can handle many different Ethernet protocols to provide Layer2/Layer3 switching. Each NPU can handle 30 Gbps of line rate data in a fully subscribed configuration. All switching between ports is handled on the RSP card, which is connected through the backplane to all line cards. VOQ is implemented in the fabric interface chip both on the line cards and on the RSP card, which assures that all ingress data paths have equal access to their egress data ports.
Although the usable fabric bandwidth over the backplane from the fabric interface ASIC is 80 Gbps, only up to 40 Gbps (usable data) flows over the interface plus any added overhead traffic (46 Gbps).
40-Port Gigabit Ethernet (40x1GE) Line Card
The 40-Port Gigabit Ethernet (40x1GE) line card has 40 ports connected to SFP modules handling 40 Gigabit Ethernet interfaces through SGMII connections to four NPUs. The 40 SFP ports are organized into four blocks of 10 ports. Each block of 10 ports connect to one NPU through an SGMII serial bus interface.
The 40x1GE line card is available in base, extended, and low-queue versions. All versions are functionally equivalent, with the extended version of the line card providing typically twice the service scale of the base line card.
Figure 2-9 shows the block diagram for the 40x1GE line card, and Figure 2-10 shows the front panel connectors and indicators.
Figure 2-9 40-Port Gigabit Ethernet (40x1GE) Line Card Block Diagram
Figure 2-10 40-Port Gigabit Ethernet (40x1GE) Line Card Front Panel
8-Port 10-Gigabit Ethernet (8x10GE) 2:1 Oversubscribed Line Card
The 8-Port 10-Gigabit Ethernet (8x10GE) 2:1 oversubscribed line card has eight 10 Gigabit Ethernet, oversubscribed, XFP module ports. Two 10 Gigabit Ethernet ports connect to XAUI interfaces on each of the four NPUs.
The 8x10GE 2:1 oversubscribed line card is available in base, extended, and low-queue versions. All versions are functionally equivalent, with the extended version of the line card providing typically twice the service scale of the base line card.
Figure 2-11 shows the block diagram for the 8x10GE 2:1 oversubscribed line card, and Figure 2-12 shows the front panel connectors and indicators.
Figure 2-11 8-Port 10-Gigabit Ethernet (8x10GE) 2:1 Oversubscribed Line Card Block Diagram
Figure 2-12 8-Port 10-Gigabit Ethernet (8x10GE) 2:1 Oversubscribed Line Card Front Panel
Ejector lever (one of two)
Port 7 XFP cage
Port 0 XFP cage
Line Card Status LED
Port Status LED (one per port)
Captive installation screw (one of two)
4-Port 10-Gigabit Ethernet (4x10GE) Line Card
The 4-Port 10-Gigabit Ethernet (4x10GE) line card has four 10-Gigabit Ethernet XFP module ports. One 10-Gigabit Ethernet port connects to an XAUI interface on each of the four NPUs.
The 4x10GE line card is available in base, extended, and low-queue versions. All versions are functionally equivalent, with the extended version of the line card providing typically twice the service scale of the base line card.
Figure 2-13 shows the block diagram for the 4x10GE Line card, and Figure 2-14 shows the front panel connectors and indicators.
Figure 2-13 4-Port 10-Gigabit Ethernt (4x10GE) Line Card Block Diagram
Figure 2-14 4-Port 10-Gigabit Ethernet (4x10GE) Line Card Front Panel
Ejector lever (one of two)
Port 3 XFP cage
Port 0 XFP cage
Line Card Status LED
Port Status LED (one per port)
Captive installation screw (one of two)
8-Port 10-Gigabit Ethernet (8x10GE) 80 Gbps Line Rate Card
The 8-Port 10-Gigabit Ethernet (8x10GE) 80 Gbps line rate card has eight 10-Gigabit Ethernet XFP module ports. One 10-Gigabit Ethernet port connects to an XAUI interface on each of the eight NPUs. The 8x10GE 80 Gbps line rate card supports WAN PHY and OTN modes as well as the default LAN mode.
The 8x10GE 80 Gbps line rate card is available in base, extended, and low-queue versions. All versions are functionally equivalent, with the extended version of the line card providing typically twice the service scale of the base line card.
Figure 2-15 shows the block diagram for the 8x10GE 80G line rate card, and Figure 2-16 shows the front panel connectors and indicators.
Figure 2-15 8-Port 10-Gigabit Ethernet (8x10GE) 80 Gbps Line Rate Card Block Diagram
Figure 2-16 8-Port 10-Gigabit Ethernet (8x10GE) 80 Gbps Line Rate Card Front Panel
Ejector lever (one of two)
Port 7 XFP cage
Port Status LED (one per port)
Line Card Status LED
Port 0 XFP cage
Captive installation screw (one of two)
2-Port 10-Gigabit Ethernet + 20-Port 1-Gigabit Ethernet (2x10GE + 20x1GE) Combination Line Card
The 2-Port 10-Gigabit Ethernet + 20-Port 1-Gigabit Ethernet (2x10GE + 20x1GE) combination line card has two 10-Gigabit Ethernet XFP module ports and 20 Gigabit Ethernet SFP module ports. Each port (XFP or SFP) connects to an XAUI interface on one of the four NPUs. The 2x10GE + 20x1GE combination line card supports WAN PHY and OTN modes as well as the default LAN mode.
The 2x10GE + 20x1GE combination line card is available in base, extended, and low-queue versions. All versions are functionally equivalent, with the extended version of the line card providing typically twice the service scale of the base line card.
Figure 2-17 shows the block diagram for the 2x10GE + 20x1GE combination line card, and Figure 2-18 shows the front panel connectors and indicators.
Figure 2-17 2-Port 10-Gigabit Ethernet + 20-Port Gigabit Ethernet (2x10GE + 20x1GE) Combination Line Card Block Diagram
Figure 2-18 2-Port 10-Gigabit Ethernet + 20-Port 1-Gigabit Ethernet (2x10GE + 20x1GE) Combination Line Card Front Panel
16-Port 10-Gigabit Ethernet (16x10GE) Oversubscribed Line Card
The 16-Port 10-Gigabit Ethernet (16x10GE) oversubscribed line card has sixteen 10-Gigabit Ethernet, oversubscribed, SFP+ (10-Gigabit Ethernet SFP) module ports. Two 10-Gigabit Ethernet ports connect to XAUI interfaces on each of the eight NPUs.
The 16x10GE oversubscribed line card is available in a base version.
Figure 2-19 shows the block diagram for the 16x10GE oversubscribed line card, and Figure 2-20 shows the front panel connectors and indicators.
Figure 2-19 16x10GE Oversubscribed Line Card Block Diagram
Figure 2-20 16-Port 10-Gigabit Ethernet (16x10GE) Oversubscribed Line Card Front Panel
24-Port 10-Gigabit Ethernet Line Card
The 24-Port 10-Gigabit Ethernet line card provides two stacked 2x6 cage assemblies for SFP+ Ethernet optical interface modules. The 24 SFP+ modules operate at a rate of 10 Gbps (see Table A-3).
With two RSP cards installed in the router, the 24-Port10-Gigabit Ethernet line card runs at line rate.
With a single RSP card installed in the router, the 24-Port 10-Gigabit Ethernet line card is a 220 Gbps line rate card.
The 24-Port 10-Gigabit Ethernet line card is available in either an -SE (Service Edge Optimized) or -TR (Packet Transport Optimized) version. Both versions are functionally equivalent, but vary in configuration scale and buffer capacity.
Figure 2-21 shows the front panel and connectors of the 24-Port 10-Gigabit Ethernet line card.
Figure 2-21 24-Port 10-Gigabit Ethernet Oversubscribed Line Card
2-Port 100-Gigabit Ethernet Line Card
The 2-Port 100-GE line card provides two CFP cages for CFP Ethernet optical interface modules that operate at a rate of 100 Gbps.
The two CFP modules can be 100-Gigabit Ethernet multimode connections (see Table A-6).
The 2-Port 100-GE line card is available in either an -SE (Service Edge Optimized) or -TR (Packet Transport Optimized) version. Both versions are functionally equivalent, but vary in configuration scale and buffer capacity.
Each CFP cage on the 2-Port 100-GE line card has an adjacent Link LED visible on the front panel. The Link LED indicates the status of the associated CFP port, as described in Table 2-1.
Figure 2-22 shows the front panel and connectors of the 2-Port 100-GE line card.
Figure 2-22 2-Port 100-Gigabit Ethernet Line Card
Modular Line Cards
The modular line card is available in two network processing unit [80 gb throughput] versions. Each version is available in either an -SE (Service Edge Optimized) or -TR (Packet Transport Optimized) version. Both versions are functionally equivalent, but vary in configuration scale and buffer capacity.
Figure 2-23 shows the front panel of the modular line card with a 20-port Gigabit Ethernet modular port adaptor installed in the lower bay.
Figure 2-23 Modular Line Card
The modular line card provides two bays that support the following Modular Port Adaptors (MPAs):
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•
20-Port Gigabit Ethernet Modular Port Adaptor
The 20-Port Gigabit Ethernet modular port adaptor provides 10 double-stacked SFP (20 total) cages that support either fiber-optic or copper Gigabit Ethernet transceivers.
Each SFP cage on the Gigabit Ethernet modular port adaptor has an adjacent Link LED visible on the front panel. The Link LED indicates the status of the associated SFP port, as described in Table 2-1.
Refer to Figure 2-24 below for an example of the 20-Port Gigabit Ethernet Modular Port Adaptor.
Figure 2-24 20-Port Gigabit Ethernet Modular Port Adaptor
4-Port 10 Gigabit Ethernet Modular Port Adaptor
The 4-Port 10 Gigabit Ethernet modular port adaptor provides four cages for XFP Ethernet optical interface modules that operate at a rate of 10 Gbps. The four XFP modules can be 10-Gigabit Ethernet multimode connections (see Table A-6).
Each XFP cage on the 4-Port 10 Gigabit Ethernet modular port adaptor has an adjacent Link LED visible on the front panel. The Link LED indicates the status of the associated XFP port, as described in Table 2-1.
Refer to Figure 2-25 below for an example of the 4-Port 10 Gigabit Ethernet modular port adaptor.
Figure 2-25 4-Port 10 Gigabit Ethernet Modular Port Adaptor
Power System Functional Description
The Cisco ASR 9000 Series Router can be powered with an AC or DC source power. The power system is based on a distributed power architecture centered around a -54 VDC printed circuit power bus on the system backplane.
The -54 VDC system backplane power bus can be sourced from one of two options:
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•
The system backplane distributes DC power from the single -54 VDC distribution plane to each card and the fan trays. Each card has on-board DC-DC converters to convert the -54 VDC from the distribution bus voltage to the voltages required by each particular card.
The power system has single-point grounding on the -54 VDC Return, that is, the -54 VDC Return is grounded to the chassis ground on the backplane only.
All field replaceable modules of the power system are designed for Online Insertion and Removal (OIR), so they can be installed or removed without causing interruption to system operation.
Figure 2-26 and Figure 2-27 show block diagrams of the ASR 9006 Router AC power system with version 1 and version 2 power systems. Figure 2-28 and Figure 2-29 show block diagrams of the ASR 9006 Router DC power system with version 1 and version 2 power systems.
Note
See "Technical Specifications" for power module specifications.
Figure 2-26 ASR 9010 Router AC Power System Block Diagram - Version 1 Power System
Figure 2-27 ASR 9010 Router AC Power System Block Diagram - Version 2 Power System
Figure 2-28 ASR 9010 Router DC Power System Block Diagram - Version 1 Power System
Figure 2-29 ASR 9010 Router DC Power System Block Diagram - Version 2 Power System
Figure 2-30 and Figure 2-31 show block diagrams of the ASR 9006 Router AC power system with version 1 and version 2 power systems. Figure 2-32 and Figure 2-33 show block diagrams of the ASR 9006 Router DC power system with version 1 and version 2 power systems.
Figure 2-30 ASR 9006 Router AC Power System Block Diagram - Version 1 Power System
Figure 2-31 ASR 9006 Router AC Power System Block Diagram - Version 2 Power System
Figure 2-32 ASR 9006 Router DC Power System Block Diagram - Version 1 Power System
Figure 2-33 ASR 9006 Router DC Power System Block Diagram - Version 2 Power System
Power Modules
Multiple AC/DC power modules can be installed in each AC power shelf. In the ASR 9010 Router, two version 1 power shelves with a total of six power modules can be installed to provide 3 + 3 maximum power redundancy and two version 2 power shelves with a total of eight power modules can be installed to provide 4 + 4 maximum power redundancy. At least four power modules (two per power shelf) are required for 2N redundancy for a fully configured system (version 1 and version 2).
The ASR 9006 Router has one power shelf. Version 1 supports up to three power modules for 2 + 1 maximum power redundancy. Version 2 supports up to four power modules for 3 + 1 maximum power redundancy. At least two power modules are required for redundancy for a fully configured system (version 1 and version 2)
Figure 2-34 shows the version 1 power module and Figure 2-35 shows the version 2 power module.
Figure 2-34 Version 1 Power Module
Figure 2-35 Version 2 Power Module
Power Module Status Indicators
Figure 2-36 shows the status indicators for the version 1 power module and Figure 2-37 shows the status indicators for the version 2 power module. The indicator definitions follow the two figures.
Figure 2-36 Version 1 Power Module Status Indicators
Figure 2-37 Version 2 Power Module Status Indicators
System Power Redundancy
Both the AC and DC power systems have system power redundancy depending on the chassis configuration. Each shelf can house up to three modules and can be configured for multiple power configurations (see Figure 1-18). For more information about power system redundancy, see the "Power Supply Redundancy" section.
AC Power Shelves
The AC power shelf provides 20-A UL/CSA-rated, 16-IEC-rated AC receptacles. Each receptacle has a bail lock retention bracket to retain the power cord. DC output power from the AC power shelf is connected to the router by two power blades that mate to the power bus on the backplane. System communication is through a I2C cable from the backplane.
Figure 2-38 shows the back of the version 1 AC power shelf and Figure 2-39 shows the back of the version 2 power shelf.
Figure 2-38 Version 1 AC Power Shelf Rear Panel
DC output power blades
Power switch
IEC input receptacles with retention brackets
I2C cable from backplane
Figure 2-39 Version 2 AC Power Shelf Rear Panel
AC Shelf Power Switch
Each AC power shelf provides a single-pole, single-throw power switch to power on and off the three power modules installed in the shelf simultaneously. When the power modules are turned off, only the DC output power is turned off; the power module fans and LEDs still function. The power switch for the version 1 power shelf is on the back of the shelf, as shown in Figure 2-38. The power switch for the version 2 power shelf is on the front of the shelf, as shown in Figure 2-40.
Figure 2-40 Location of AC Power Switch - Version 2 Power System
AC Input Voltage Range
Each AC module accepts an individual single phase 220-VAC 20-A source. Table A-8 shows the limits of the specified AC input voltage. The voltages given are single phase power source.
DC Output Levels
The output for each module is within the tolerance specifications (see Table A-10) under all combinations of input voltage variation, load variation, and environmental conditions. The combined, total module output power does not exceed 3000 W.
The AC shelf output capacity depends on how many modules are populated. Maximum output current is determined by multiplying the maximum module current times module quantity. For example, to determine the maximum capacity with three power supply modules, multiply the current by three (x3).
AC System Operation
This section describes the normal sequence of events for system AC power up and power down.
Power Up
1.
2.
3.
4.
5.
6.
Power Down
1.
2.
3.
4.
5.
DC Power Shelves
The DC power shelf (see Figure 2-41) provides two power feed connector banks: A feed and B feed. System communication is through a I2C cable from the backplane.
DC Shelf Power Switch
Each DC power shelf provides a single-pole, single-throw power switch to power on and off all of the power modules installed in the shelf simultaneously. When the power modules are turned off, only the DC output power is turned off; the power module fans and LEDs still function. The power switch is on the front panel.
DC Power Shelf Read Panel
Figure 2-41 shows the rear panel of the power shelf for the version 1 power system. Figure 2-42 shows the rear panel of the power shelf for the version 2 power system.
Figure 2-41 DC Power Shelf Rear Panel
DC output power blades
I2C cable from backplane
"A" feed connectors
Primary ground
"B" feed connectors
Power switch
Figure 2-42 DC Power Shelf Rear Panel - ASR 9006 Router with Version 2 Power System
DC Power Shelf Power Feed Indicator
Figure 2-43 shows the location of the power feed indicators on the rear panel of the DC power shelf for the ASR 9010 Router and the ASR 9006 Router with the version 1 power system. Figure 2-44 shows the location of the power feed indicators on the rear panel of the DC power shelf for the ASR 9006 Router with the version 2 power system.
Figure 2-43 DC Power Shelf Power Feed Indicator - Version 1 Power System
Figure 2-44 DC Power Shelf Power Feed Indicator - Version 2 Power System
DC System Operation
This section describes the normal sequence of events for system DC power up and power down.
Power Up
1.
2.
3.
4.
5.
6.
Power Down
1.
2.
3.
4.
5.
Cooling System Functional Description
The Cisco ASR 9000 Series chassis is cooled by two fan trays located below the card cage. The two fan trays provide full redundancy and maintain required cooling if a single fan failure should occur.
In the ASR 9010 Router, the fan trays are located one above the other below the card cage, and are equipped with handles for easy removal.
The fan trays for the ASR 9006 Router are located above the card cage, left of center, side by side. They are covered by a fan tray door hinged at the bottom, which must be opened to remove the trays.
Cooling Path
The ASR 9010 Router chassis has a front to rear cooling path. The inlet is at the bottom front of the chassis and exhaust is at the upper rear.
Figure 2-45 shows the cooling path for the ASR 9010 Router chassis.
The ASR 9006 Router chassis has a side to top to rear cooling path. The inlet is at the right side of the chassis and exhaust is at the upper rear.
Figure 2-46 shows the cooling path for the ASR 9006 Router chassis.
Figure 2-45 ASR 9010 Router Chassis Cooling Path
Figure 2-46 ASR 9006 Router Chassis Cooling Path
Fan Trays
The ASR 9010 Router contains two fan trays (see Figure 2-47) for redundancy. If a fan tray failure occurs, it is possible to swap a single fan tray assembly while the system is operational. Fan tray removal does not require removal of any cables.
The fan tray contains 12 axial 120-mm (4.72-in) fans. There is a fan control board at the back end of each tray with a single power/data connector that connects with the backplane.
The fan tray aligns through two guide pins inside the chassis, and is secured by two captive screws. The controller board floats within the fan tray to allow for alignment tolerances.
A finger guard is adjacent to the front of most of the fans to keep fingers away from spinning fan blades during removal of the fan tray.
Maximum weight of the fan tray is 13.82 lb (6.29 kg).
Figure 2-47 ASR 9010 Router Fan Tray
The ASR 9006 Router contains two fan trays (see Figure 2-48) for redundancy. If a fan tray failure occurs, it is possible to swap a single fan tray assembly while the system is operational. Fan tray removal does not require removal of any cables.
Note
The fan tray contains six axial 92-mm (3.62-in) fans. There is a fan control board at the back end of each tray with a single power/data connector that connects with the backplane
The fan tray aligns through two guide pins inside the chassis, and is secured by one captive screw. The controller board floats within the fan tray to allow for alignment tolerances.
A finger guard is adjacent to the front of most of the fans to keep fingers away from spinning fan blades during removal of the fan tray.
Maximum weight of the fan tray is 39.7 lbs (18.0 kg).
Figure 2-48 ASR 9006 Router Fan Tray
Status Indicators
The ASR 9010 Router fan tray has a Run/Fail status LED on the front panel (see Figure 2-47) to indicate fan tray status.
The ASR 9006 Router fan tray has a Run/Fail status LED on the front panel to indicate fan tray status.
After fan tray insertion into the chassis, the LED lights up temporarily appearing yellow. During normal operation:
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Fan Tray Servicing
No cables or fibers need to be moved during installation or removal of the fan tray(s). Replacing fan trays does not interrupt service.
Slot Fillers
To maintain optimum cooling performance in the chassis and at the slot level, unused slots must be filled with card blanks or flow restrictors. These slot fillers are simple sheet metal only and are not active. Software cannot detect their presence.
Chassis Air Filter
The chassis air filters in the Cisco ASR 9000 Series Router are NEBS compliant. The filter is not serviceable. but is a field replaceable unit (FRU). Replacing the filter does not interrupt service.
In the ASR 9010 Router, a chassis air filter is located underneath the fan trays (see Figure 2-49).
Figure 2-49 ASR 9010 Router Chassis Air Filter
In the ASR 9006 Router, a chassis air filter is located along the right side of the chassis, and is accessible from the rear of the chassis (see Figure 2-50).
Figure 2-50 ASR 9006 Router Chassis Air Filter
Speed Control
The cooling system adjusts its speed to compensate for changes in system or external ambient temperatures. To reduce operating noise, the fans have variable speeds. Speed can also vary depending on system configurations that affect total power dissipation. If lower power cards are installed, the system could run at slower speeds; if higher power cards are installed, the system could run at faster speeds
Fan speed is managed by the RSP card and the controller card in the fan tray. The RSP monitors card temperatures and sends a fan speed to the controller card.
If the failure of a single fan within a module is detected, the failure causes an alarm and all the other fans in the fan tray go to full speed.
Complete failure of one fan tray causes the remaining fan tray to operate its fans at full speed continuously until a replacement fan tray is installed.
Temperature Sensing and Monitoring
Temperature sensors are present on cards to monitor the internal temperatures. Line cards and RSP cards have their leading edge (inlet) and hottest spot continuously monitored by temperature sensors. Some cards have additional sensors located near hot components that need monitoring. Some ASICS have internal diodes that might be used to read junction temperatures.
If the ambient air temperature is within the normal operating range, the fans operate at the lowest speed possible to minimize noise & power consumption.
If the air temperature in the card cage rises, fan speed increases to provide additional cooling air to the internal components. If a fan fails, the others increase in speed to compensate.
Fan tray removal triggers environmental alarms and increases the fan speed of the remaining tray to its maximum speed.
Servicing
The system is populated with two fan trays for redundancy. If a fan tray failure occurs, it is possible to swap a single fan tray assembly while the system is operational.
Fan tray removal does not require removal of any cables.
Assuming redundant configuration, removal of a fan tray results in zero packet loss.
System Shutdown
When the system reaches critical operating temperature points, it triggers a shutdown sequence of the system.
System Management and Configuration
The Cisco IOS XR Software on the Cisco ASR 9000 Series Router provides the system manageability interfaces: CLI, XML, and SNMP.
Cisco IOS XR Software
The Cisco ASR 9000 Series Router run Cisco IOS XR Software and use the manageability architecture of that operating system, which includes CLI, SNMP, and XML. Craft Works Interface (CWI), a graphical craft tool for performance monitoring, is embedded with the Cisco IOS XR Software and can be downloaded through the HTTP protocol. However, the Cisco ASR 9000 Series Routers only support a subset of CWI functionality. In this mode, a user can edit the router configuration file, open Telnet/SSH application windows, and create user-defined applications.
System Management Interfaces
The system management interfaces consist of the CLI, XML, and SNMP protocols. By default, only CLI on the console is enabled. When the management LAN port is configured, various services can be started and used by external clients, such as Telnet, SSH, and SNMP, In addition, TFTP and Syslog clients can interact with external servers. CWI can be downloaded and installed on a PC or Solaris box.
For information about SNMP, see the "SNMP" section.
All system management interfaces have fault and physical inventory.
Command Line Interface
The CLI supports configuration file upload and download through TFTP. The system supports generation of configuration output without any sensitive information such as passwords, keys, etc. The Cisco ASR 9000 Series Routers support Embedded Fault Manager (TCL scripted policies) through CLI commands. The system also supports feature consistency between the CLI and SNMP management interfaces.
Craft Works Interface
The system supports CWI, a graphical craft tool for performance monitoring, configuration editing, and configuration rollback. CWI is embedded with IOS XR and can be downloaded through the HTTP protocol. A user can use CWI to edit the router configuration file, create user-defined applications, and open Telnet/SSH application windows to provide CLI access.
XML
External (or XML) clients can programmatically access the configuration and operational data of the Cisco ASR 9000 Series Router using XML. The XML support includes retrieval of inventory, interfaces, alarms, and performance data. The system is capable of supporting 15 simultaneous XML/SSH sessions. The system supports alarms and event notifications over XML and also supports bulk PM retrieval and bulk alarms retrieval.
XML clients are provided with the hierarchy and possible contents of the objects that they can include in their XML requests (and can expect in the XML responses), documented in the form of an XML schema.
When the XML agent receives a request, it uses the XML Service Library to parse and process the request. The Library forwards the request to the Management Data API (MDA) Client Library, which retrieves data from the SysDB. The data returned to the XML Service Library is encoded as XML responses. The agent then processes and sends the responses back to the client as response parameter of the invoke method call. The alarm agent uses the same XML Service Library to notify external clients about configuration data changes and alarm conditions.
SNMP
The SNMP interface allows management stations to retrieve data and to get traps. It does not allow setting anything in the system.
SNMP Agent
In conformance with SMIv2 (Structure of Management Information Version 2) as noted in RFC 2580, the system supports SNMPv1, SNMPv2c, and SNMPv3 interfaces. The system supports feature consistency between the CLI and SNMP management interfaces.
The system is capable of supporting at least 10 SNMP trap destinations. Reliable SNMP Trap/Event handling is supported.
For SNMPv1 and SNMPv2c support, the system supports SNMP View to allow inclusion/exclusion of Miss for specific community strings. The SNMP interface allows the SNMP SET operation.
MIBs
The Device Management MIBs supported by the Cisco ASR 9000 Series Router are listed at:
http://cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
Online Diagnostics
System run-time diagnostics are used by the Cisco Technical Assistance Center (TAC) or the end user to troubleshoot a field problem and assess the state of a given system.
Some examples of the run-time diagnostics include the following:
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