Table Of Contents
Minimum Software Releases for the Cisco 10008 Router
Cisco 10008 Router Hardware Description
Line Card and PRE Module Compartment
PRE LED Indicators and Switches
Cisco 10008 Router Overview
The Cisco 10008 router is a high capacity Layer 3 router optimized to support selected Cisco IOS software services at wire speed performance on thousands of DS1/T1 connections. Designed primarily for use in a telco central office environment, it provides interfaces that connect to large numbers of subscribers using low-speed circuits, and then funnels all of that subscriber traffic into a small number of high-speed trunk interfaces. The chassis has eight line card slots and two slots for Performance Routing Engine (PRE) modules.
This chapter contains the following sections:
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Cisco 10008 Router Hardware Description
Note
The Cisco 10008 router is designed to meet and exceed the most stringent ISP requirements for product availability and reliability. Its features include:
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Performance routing engine redundancy in the Cisco 10008 router is achieved through an implementation of Enhanced High System Availability (EHSA). This feature lets you configure the chassis for non-redundant operation with one PRE, or for redundant operation with two PREs.
In addition to PRE redundancy, SONET/SDH line cards can be configured for 1+1 Automatic Protection Switching (APS) to accommodate failure of either a line card or the transmission facility carrying trunk traffic to upstream equipment.
The Cisco 10008 router is designed to scale to unprecedented levels with plans to further increase scalability in future releases. The current release provides support for up to:
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For CT3 line cards, this equates to:
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For channelized OC-12 line cards, this equates to:
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Cisco 10008 Router Features
The Cisco 10008 router and power subsystem support the following key features:
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Cisco 10008 Router Software
Software is stored on the PRE which includes two PCMCIA slots that are accessible from the front panel. Either slot can store an Cisco IOS image or configuration file.
The flash memory present on Cisco 10000 router line cards is used to store a simple ROM monitor/boot loader. The loader executes following a system reset, line card reset, or line card insertion.
Line card images may also be stored in PRE flash memory or on an external TFTP server.
The PRE stores the system configuration in a 512KB NVRAM device. Configuration information read from NVRAM is buffered in RAM following initialization, and is written to the device when you save the configuration.
Minimum Software Releases for the Cisco 10008 Router
For a listing of the minimum software releases supported on the Cisco 10008 router, see the
Cisco 10000 Series Routers Documentation Roadmap, Release Notes.Cisco 10008 Router Hardware Description
The Cisco 10008 router is Network Equipment Building Standards (NEBS) Level 3 compliant. This includes:
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Less than 22 inches in height (you can configure up to three Cisco 10008 routers per 7-foot rack).
The chassis supports redundant AC or DC power, and contains:
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Figure 1-1shows a front view of the Cisco 10008 router. Figure 1-2 shows the BNC connectors, line card slots from the rear, and half-height line card subslot designations on the rear of the router.
Figure 1-1 Cisco 10008 Router Chassis—Front View
Blower module
PRE - slot 0A
Primary PEM
PRE slot 0B
Redundant PEM
Line cards slots 5 to 8
Line cards slots 1 to 4
Figure 1-2 BNC Connectors on the Rear of the Chassis
Line card slot 8
Line card slot 1
Line cards slot 5
Power supply
Blower module
Half-height line card subslot 0
Line card slot 4
Half-height line card subslot 1
The Cisco 10008 chassis is designed for mounting in 19-inch or (optional) 23-inch equipment racks, and contains the following components:
Blower Module
The Cisco 10008 router uses a blower module (Figure 1-3) containing four fans to supply cooling air to the chassis.
Figure 1-3 Blower Module
The blower module is located at the top of the chassis and connects to a connector on the chassis.
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Although the blower module supports hot-swapping and can be replaced without interruption to system operation, do not power down the system without the blower unit for more than a few minutes to prevent overheating.
Power Entry Modules
The DC PEM provides filtering and supplies DC power to the chassis electronics (Figure 1-4). DC PEMs receive input power (-48 VDC from building centralized power source) through terminal block connections located on the rear of the chassis.
Table 1-1 describes the LEDs on the DC PEM.
Figure 1-4 DC PEM
Table 1-1 DC PEM LEDs
Power (green)
PEM is powered on and is operational.
Fault (yellow)
The PEM is not operating correctly (see the Cisco 10000 Series ESR Troubleshooting Guide).
Miswire (yellow)
-48V and RTN (+) wires are reversed (see the "Troubleshooting Installation Problems" section).
The AC PEM provides power conversion directly from the facility VAC input power (100-240 VAC) to the -48 VDC used internally by the system (Figure 1-5). AC power is delivered to the AC PEM from the VAC connection power cable to the power cord attached to the PEM.
Table 1-2 describes the LEDs on the AC PEM.
Figure 1-5 AC PEM
Table 1-2 AC PEM LEDs
Power (green)
PEM is powered on and is operational.
Fault (yellow)
The PEM is not operating correctly (see the Cisco 10000 Series ESR Troubleshooting Guide).
Line Card and PRE Module Compartment
The module compartment has 10 slots: the two central slots are reserved for PRE modules, and the remaining 8 slots accommodate full-height line cards. The PRE and line cards support hot-swapping and redundancy. See Figure 1-1 for a front view of the module compartment, and Figure 1-2 for a rear view of the module compartment, BNC connectors, and line card subslot designations.
For information about the line card that the Cisco 10008 router supports, see the Cisco 10000 Routers Line Card Hardware Installation Guide, and for line card configuration information, see the
Cisco 10000 Series Router Line Card Configuration Guide.Performance Routing Engine
The PRE is the central router and system controller (SC) for the Cisco 10008 router. It is responsible for all Layer 2 and Layer 3 packet processing, as well as execution of routing protocols and management of the system. The PRE consists of two main logical and physical cards:
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The high performance forwarding engine in the PRE is Cisco's Parallel eXpress Forwarding (PXF) application specific integrated circuit (ASIC). The two PXF ASICs on the PRE direct traffic to and from the router line cards.
Each PXF ASIC has 32 independent processors that work on per-packet feature processing, yielding high throughput while still allowing substantial feature processing. The PXF centralizes packet processing in the PRE, which frees up space on line cards, enabling high interface density, yet retaining a compact form factor.
Caution
Figure 1-6 shows the front panel of the Performance Routing Engine, product number ESR- PRE.
Figure 1-6 Performance Routing Engine, Product Number ESR-PRE, Front Panel
Figure 1-7 shows the front panel of the Performance Routing Engine, product number ESR-PRE1.
Figure 1-7 Performance Routing Engine, Product Number ESR-PRE1, Front Pane
Figure 1-8 shows the front panel of the Performance Routing Engine, product number ESR-PRE2.
Figure 1-8 Performance Routing Engine, Product Number ESR-PRE2, Front Panel
Connector Ports
The front panel on the PRE contains three ports with RJ-45 connectors (see Figure 1-6):
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PCMCIA Card Slots
Two PCMCIA Type II card slots can store the Cisco IOS image or a system configuration file on a flash memory card. The system can also boot from the software stored on the flash memory card. See "Removing the PCMCIA Flash Card" section for more information about inserting and removing flash cards from the PRE.
PRE LED Indicators and Switches
LEDs on the front panel of the PRE provide a visual indication showing the status of PRE operation (see Figure 1-6). The LEDs are separated into three categories:
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Alarm relay contacts on the Cisco 10008 router let you connect the router to a site alarm maintenance system. This allows critical, major, and minor alarms generated by the Cisco 10008 router to be displayed on both the PRE front panel and to external visual or audible alarms connected to the system. See the "Connecting Alarm Indicators" section for more information about alarm connections.
Pressing the alarm cutoff (ACO) switch on the (primary) PRE during an alarm condition shuts off the external alarm, but does not deactivate the alarm LEDs on the PRE front panel. Alarm LEDs on the front panel are deactivated only after the condition that caused the alarm is corrected.
Table 1-3 describes the LEDs and switch on the PRE.
Alphanumeric Display
The small alphanumeric display on the front panel provides information on the state of the PRE. The display consists of two four-character LED panels. Table 1-4 lists the most common messages and explains what they mean. If you report a problem to Cisco, it is helpful to include the message on the PRE's alphanumeric display in your problem report.
Disposing of the PRE
The PRE contains a small lithium battery. Some jurisdictions restrict the ways in which you may dispose of items containing lithium batteries. In particular, never dispose of lithium batteries or products containing lithium batteries in an unregulated fire. Other restrictions might apply in your area.
Warning
