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Product Numbers: CISCO7206(=), CISCO7206VXR(=), CISCO7206-DC, CISCO7206-CH, CISCO7204(=), CISCO7204VXR(=), CISCO7204-DC, CISCO7204-CH, CISCO7202(=), RS7206S(=), RS7206VXR-SK(=)
This document explains the port adapter hardware configuration guidelines for Cisco 7200 series routers (which consist of the two-slot Cisco 7202, four-slot Cisco 7204 and Cisco 7204VXR, and the six-slot Cisco 7206 and Cisco 7206VXR). It includes brief explanations of Cisco 7200 series architecture, port adapter bandwidth allocations, and port adapter slot numbering.
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Note The Cisco 7206 and the Cisco 7206VXR can be used as router shelves in a Cisco AS5800 Universal Access Server. References to Cisco 7200 series routers in this document include the Cisco 7206 and Cisco 7206VXR router shelves, unless indicated otherwise. |
This document contains the following sections:
Your router and the Cisco IOS software running on it contain extensive features and functionality, which are documented in the following resources:
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Note You can access Cisco IOS software configuration and hardware installation and maintenance documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com. |
Cisco 7200 series routers (which consist of the two-slot Cisco 7202, four-slot Cisco 7204 and Cisco 7204VXR, and the six-slot Cisco 7206 and Cisco 7206VXR) support multiprotocol, multimedia routing and bridging with a wide variety of protocols and media types. Network interfaces reside on port adapters that provide a connection between the routers' Peripheral Component Interconnect (PCI) buses and external networks. Port adapters can be placed in any available port adapter slot, in any desired combination.
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Note For information about the Cisco 7206 and Cisco 7206VXR as router shelves in a Cisco AS5800 Universal Access Server, refer to the Cisco AS5800 Universal Access Server documentation listed in the "For More Information" section. |
The front of Cisco 7200 series routers provides access to an input/output (I/O) controller and up to two, four, or six network interface port adapters. The I/O controller has a local console port for connecting a data terminal (or data terminal equipment [DTE]) and an auxiliary port for connecting a modem (or other data communications equipment [DCE]) or other devices for configuring and managing the router; PC Card slots for Flash memory cards or Flash Disks; and optional Ethernet, Fast Ethernet, or Gigabit Ethernet ports.
Figure 1 shows a Cisco 7206VXR with installed port adapters and an I/O controller with a Fast Ethernet port. Not shown are the Cisco 7202, which has two port adapter slots, the Cisco 7204 and Cisco 7204VXR, which have four port adapter slots, and the Cisco 7206, which has six port adapter slots.
The port adapters installed in Cisco 7200 series routers are of the same type as those installed in other Cisco 7000 family routers. Cisco 7200 series routers support the online insertion and removal (OIR) of installed port adapters.
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Note In Figure 1, a blank port adapter is installed in port adapter slot 5. To ensure adequate airflow across the router's internal components, ensure that each port adapter slot is filled with either a port adapter or a blank port adapter. |
The rear of Cisco 7200 series routers provides access to a network processing engine (NPE) or network services engine (NSE) and up to two 280W AC-input or DC-input power supplies (see Figure 2).
The NPE and NSE have no external connectors or LEDs. There is a handle for removing and installing the engines and two captive installation screws for securing them to the chassis.
A fully configured Cisco 7200 series router operates with only one installed power supply; however, a second, optional power supply of the same type provides hot-swappable, load-sharing, redundant power. The power supply has the router's main power switch and either an AC-input power receptacle, or three hardwired DC-input power leads (depending on the type of installed power supply). Adjacent to the power supply bays are two chassis grounding receptacles that provide a chassis ground connection for ESD equipment or a two-hole grounding lug (see Figure 2).
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Note The Cisco 7200 series routers do not support a mix of installed AC-input and DC-input power supplies. Figure 2 shows the rear of a Cisco 7200 series router configured with a single 280W AC-input power supply. (A power supply filler plate is installed over the second power supply bay.) |
Three internal fans draw cooling air into the chassis interior and across internal components to maintain an acceptable operating temperature (see Figure 2). The three fans are enclosed in a tray that is located in the subchassis.
The I/O controller, port adapters, power supplies, and NPE or NSE slide into their respective chassis slots and connect directly to the router midplane; there are no internal cables to connect. The midplane distributes DC power from the power supplies to these modular field-replaceable units.
All port adapters and service adapters installed in Cisco 7200 series routers connect to two Peripheral Component Interconnect (PCI) buses, mb1 and mb2, on the router midplane that provide a path to packet I/O memory and the system (routing and switching) processor. The optional ports on the I/O controllers connect to a third PCI bus, mb0, that connects to one of the PCI buses or to both of the PCI buses, depending on which network processing engine (NPE) or network services engine (NSE) is installed and supported in your system.
In Cisco 7200 series routers, port adapters in odd-numbered slots connect to PCI bus mb1, and port adapters in even-numbered slots connect to PCI bus mb2. (For chassis slot numbering, see Figure 3.) Guidelines for distributing the port adapters evenly between the two buses are given in the "Port Adapter and Service Adapter Types and Installation Guidelines" section.
Figure 3 shows the port adapter slot numbering for the Cisco 7200 series routers.
The following sections explain port adapter installation guidelines for Cisco 7200 series routers and how to determine main memory (SDRAM or DRAM) requirements for a combination of installed port adapters.
Cisco 7200 series routers have a data-carrying capacity, referred to as bandwidth, that affects the port adapter distribution in the chassis, as well as the number and types of port adapters you can install. Port adapters should be evenly distributed by bandwidth between bus mb1 and bus mb2.
Cisco 7200 or Cisco 7200 VXR routers with a network processing engine 100 (NPE-100), NPE-150, NPE-175, NPE-200, or NPE-225, use a high-, medium-, or low-bandwidth designation to determine port adapter distribution and configuration.
Cisco 7200 VXR routers with an NPE-300 or an NSE-1 use bandwidth points to determine port adapter distribution and configuration instead of high-, medium-, or low-bandwidth designations. Bandwidth points are an assigned value related to bandwidth; however, the value is adjusted based on how efficiently the hardware uses the PCI bus.
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Note Cisco 7200 VXR routers (Cisco 7204VXR and Cisco 7206VXR) support the NPE-300 and the NSE-1; Cisco 7200 routers (Cisco 7202, Cisco 7204, and Cisco 7206) do not. |
Table 1 lists adapter types, bandwidths or bandwidth points, and processor memory requirements.
| Port Adapter Type | Product Name | Bandwidth | Bandwidth Points1 | Processor Memory Required2 | Additional Requirements |
|---|---|---|---|---|---|
| ATM |
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| PA-A1-OC3MM | High | 300 | 0.10 MB | ---3 |
| PA-A1-OC3SMI | ||||
| PA-A2-4E1XC-OC3SM | High | 300 | 1.20 MB | --- |
PA-A2-4E1XC-E3ATM | 90 | ||||
PA-A2-4E1YC-OC3SM | 300 | ||||
PA-A2-4E1YC-E3ATM | 90 | ||||
PA-A2-4T1C-OC3SM | 300 | ||||
PA-A2-4T1C-T3ATM | 90 | ||||
| PA-A3-T3 | High | 90 | 1.00 MB | --- |
PA-A3-E3 | |||||
PA-A3-0C3MM | 300 | 1.00 MB | --- | ||
PA-A3-0C3SMI | |||||
PA-A3-0C3SML | |||||
| PA-A3-8T1IMA | Low4 | 12 | 4.3 MB | --- |
PA-A3-8E1IMA | 16 | --- | |||
| Channel-Attached |
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| PA-IC-E | High | 100 | 0.05 MB | 0.36 MB |
| PA-1C-P | Low4 | --- | 0.15 MB | 0.36 MB |
| Channelized, Multichannel, and ISDN |
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| PA-CT3/4T15 | High | N/A | 0.80 MB | --- |
| PA-2CE1/PRI-755 | Low4 | N/A | 1.80 MB | 1.20 MB (when configured for ISDN) |
PA-2CE1/PRI-1205 | |||||
| PA-2CT1/PRI5 | Low4 | N/A | 1.80 MB | 1.20 MB (when configured for ISDN) |
| Channelized, Multichannel, and ISDN (continued) |
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| PA-MC-E3 | High | 90 | 3.00 MB | With 2 interfaces configured for PPP encapsulation |
6.40 MB | With 128 interfaces configured for PPP encapsulation | ||||
| PA-MC-T3 | High | 90 | 3.00 MB | With 2 interfaces configured for PPP encapsulation |
6.40 MB | With 128 interfaces configured for PPP encapsulation | ||||
| PA-MC-2T3+ | High | 180 | 3.00 MB | With 2 interfaces configured for PPP encapsulation |
6.40 MB | With 128 interfaces configured for PPP encapsulation | ||||
| PA-MC-8E1/120 | Low4 | --- | 3.50 MB | --- |
| PA-MC-4T1 | Low4 | --- | 2.50 MB | --- |
PA-MC-8T1 | 3.10 MB | ||||
PA-MC-8DSX1 | |||||
| PA-4B-U | Low4 | --- | 0.40 MB | 1.20 MB |
PA-8B-ST | 0.80 MB | ||||
| Fast Ethernet and Ethernet |
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| PA-12E/2FE | High | 300 | 0.17 MB | --- |
| Fast Ethernet and Ethernet (continued) |
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| PA-8E | Medium | 80 | 0.40 MB | --- |
| PA-5EFL | 50 | 0.25 MB | --- | |
| PA-4E | 40 | --- | ||
| PA-2FEISL-TX | High | 300 | 0.68 MB | --- |
| PA-2FEISL-FX |
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| --- | |
| C7200-I/O-2FE/E | High | 400 | 0.10 MB |
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| PA-FE-TX | High | 200 | 0.10 MB | --- |
| PA-FE-FX | ||||
| C7200-I/O-FE6 | ||||
| PA-100VG | ||||
| PA-DSIC | ||||
| Gigabit Ethernet |
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| PA-GE8 | High | 400 | 0.24 MB | --- |
| C7200-I/O-GE+E8 | High | 400 | 0.11 MB |
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| FDDI |
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| PA-FDDI-MM5 | High | N/A | 0.10 MB | --- |
| PA-FDDI-SM5 | ||||
| PA-F/FD-MM5 | ||||
| PA-F/FD-SM5 | ||||
| IP-over-SONET |
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| PA-SRP-OC12MM | High | 150 + 1509 | 0.40 MB | --- |
| PA-SRP-OC12SI | High | 300 | 0.40 MB | --- |
| PA-SRP-SML | High | 300 | 0.40 MB | --- |
| Packet-over-SONET |
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| PA-POS-OC3-MM | High | 300 | 0.15 MB | --- |
| PA-POS-OC3SMI | ||||
| PA-POS-OC3SML | ||||
| Serial |
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| PA-H (Rev. B) | High | 100 | 0.10 MB | --- |
| PA-2H (Rev. B) | 200 | |||
| PA-E3 | High | 90 | 0.07 MB | --- |
| PA-T3 | ||||
| PA-T3+ | ||||
| PA-2E3 | High | 180 | 0.10 MB | --- |
| PA-2T3 | ||||
| PA-2T3+ | ||||
| PA-4E1G-120 | Low4 | --- | 0.10 MB | --- |
PA-4E1G-75 | |||||
| PA-8T-X21 | Low4 | --- | 0.35 MB | --- |
| PA-8T-V35 | ||||
| PA-8T-232 | ||||
| PA-4T | Low4 | --- | 0.20 MB | --- |
| PA-4T+ | ||||
| Service adapters |
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| SA-Encrypt | Medium | 60 | 0.03 | --- |
| SA-Comp/15 | Low4 | N/A | 0.10 | --- |
SA-Comp/45 | |||||
| Token Ring |
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| PA-4R5 | Medium | N/A | 0.30 MB | --- |
| PA-4R-FDX5 | High | N/A | 0.30 MB | --- |
| PA-4R-DTR | 120 |
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Note Cisco 7200 series routers running Cisco IOS Release 11.1 CA, Release 11.1 CC, or Release 11.2 P do not support a combination of installed ISDN PRI and BRI interfaces. Cisco 7200 series routers running Cisco IOS Release 11.3 T, Release 11.3 AA, or Release 12.0 T support a combination of installed ISDN PRI and BRI interfaces. |
To ensure that your Cisco 7200 series port adapter configuration is within the router operating limitations, observe the following guidelines (keeping in mind that a Fast Ethernet port or a Gigabit Ethernet port, if present on the I/O controller, is considered the same as a high-bandwidth port adapter):
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Note Dual-width port adapters occupy two horizontally aligned port adapter slots when installed in a Cisco 7200 series router; however, dual-width port adapters do not use both bus mb1 and bus mb2 when operating in the router. The dual-width PA-A2 port adapter uses only bus mb2 when installed in a Cisco 7200 series router. The dual-width PA-12E/2FE port adapter autoselects bus mb1 or bus mb2 based on bandwidth availability---the port adapter selects the bus that has the most available bandwidth. Therefore, do not include the bandwidth points for the PA-12E/2FE when calculating the combined bandwidth point total for a combination of installed port adapters in bus mb1 and mb2. Instead, add the bandwidth points for the PA-12E/2FE to the bus that has the most bus bandwidth availability (the bus the PA-12E/2FE will autoselect) after completing the initial calculation. |
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Note Cisco 7200 routers and Cisco 7200 VXR routers support the NPE-225, -200, -175, -150, and -100. However, the NPE-100 and NPE-150 are no longer orderable products as of April 2000. |
The system prompts you with error messages if your port adapter configuration exceeds the above guidelines. Following are examples of the error messages:
%C7200-3-PACONFIG:Exceeds 3 high speed port adapters %C7200-3-PACONFIG:Exceeds 5 high/medium speed port adapters
%C7200-3-PACONFIG:Exceeds 600 bandwidth points for slots 0, 1, 3 & 5 %C7200-3-PACONFIG:Exceeds 600 bandwidth points for slots 2, 4 & 6 %C7200-3-PACONFIG:Exceeds 600 bandwidth points on both odd & even numbered slots
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Note You can use a Cisco 7200 series router with a port adapter configuration that exceeds the above guidelines; however, to prevent anomalies from occurring while the router is in use, we strongly recommend restricting the port adapter types installed in the router according to the guidelines listed above. Additionally, your port adapter configuration must be within the above guidelines before the Cisco Technical Assistance Center will troubleshoot anomalies that are occurring in your Cisco 7200 series router. |
The following section, "Determining Port Adapter and System Memory Requirements," explains how to determine the main memory required by a Cisco 7200 series router to support a combination of installed port adapters and a Cisco IOS software subset image.
Depending on the circumstances, you might need to determine the amount of main memory (DRAM or SDRAM) required by your Cisco 7200 series router to support a combination of installed port adapter types and a specific Cisco IOS software subset image.
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Note The NPE-175, NPE-225, NPE-300, and NSE-1 use SDRAM DIMMs for main memory, whereas the NPE-100, -150, and -200 use DRAM SIMMs for main memory. |
To determine the minimum amount of DRAM or SDRAM required by a Cisco 7200 series router to support a combination of installed port adapter types and a Cisco IOS software subset image, complete the following steps.
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Note The steps in this section are general guidelines. The DRAM or SDRAM required by a Cisco 7200 series router to support a combination of installed port adapter types and a Cisco IOS software subset image is influenced by such variables as the features in the software you plan to use and the size of your network. Complete the steps in this section only if your Cisco 7200 series router has 32 MB of DRAM or SDRAM installed. If your Cisco 7200 series router has 64 MB or more of DRAM or SDRAM installed, you have enough memory to support any combination of installed port adapter types and Cisco IOS software subset images. For Cisco 7206 and Cisco 7206VXR router shelf memory requirements, refer to the Cisco AS5800 Universal Access Server documentation listed in the "For More Information" section. |
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Note The steps in this section assume that the port adapter hardware configuration of your Cisco 7200 series router follows the configuration guidelines explained in the "Configuration Guidelines" section. If you need assistance when determining DRAM or SDRAM requirements for your Cisco 7200 series router, contact the Cisco Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. |
Table 1 lists the processor memory required for the port adapter types available for use in Cisco 7200 series routers. Port adapters available for use in Cisco 7200 series routers require a minimum amount of processor memory to function properly in the routers. The amount of processor memory required by a port adapter depends on the number of interfaces or channels the port adapter provides.
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Note Some port adapters require additional processor memory to execute port adapter- specific Cisco IOS software functionality. Table 1 lists additional processor memory required for each port adapter type (where applicable). |
Table 2 lists the processor memory required for each software subset image in Cisco IOS Release 11.1 CA, Release 11.1 CC, and Release 11.2 P. Table 3 lists the processor memory required for each software subset image in Cisco IOS Release 11.3 T and Release 11.3 AA. Table 4 lists the processor memory required for each software subset image in Cisco IOS Release 12.0 T. The amount of processor memory listed in Table 2, Table 3, and Table 4 is for the static size of the image and some default data memory the image requires at system startup.
Step 2 Compare the required processor memory identified in Step 1 with the amount of processor memory provided by each DRAM or SDRAM option listed in Table 5, Table 6, and Table 7.
Table 5 through Table 7 list the processor and I/O memory provided by each DRAM or SDRAM option available for Cisco 7200 series routers. The DRAM and SDRAM options available for Cisco 7200 series routers are logically divided into processor memory (which is used by the system CPU for instruction and data storage) and I/O memory (which is used for packet buffering). The amount of processor memory available for each DRAM or SDRAM option determines the combination of installed port adapter types that a Cisco 7200 series router can support.
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Note For a DRAM or SDRAM option to support the installed port adapter types and Cisco IOS software subset image, the required processor memory identified in Step 1 must not exceed the amount of processor memory provided by the DRAM or SDRAM options listed in Table 5, Table 6, and Table 7. |
Step 3 Choose a DRAM or SDRAM memory option.
This completes the procedure for determining the minimum amount of DRAM or SDRAM required by a Cisco 7200 series router to support a combination of installed port adapters and Cisco IOS software subset image.
For a sample configuration of a Cisco 7206 router that has an installed NPE-150, an I/O controller with the Fast Ethernet port, and Cisco IOS software subset images for Release 11.1 CA and Release 12.0 T, see Table 8.
| Cisco IOS Software Release 11.1 CA and 11.1 CC | Cisco IOS Release 11.2 P | ||
|---|---|---|---|
| Subset Image | Processor Memory Required | Subset Image | Processor Memory Required |
Network Layer 3 Switching | 11.5 MB | Network Layer 3 Switching | 11.0 MB |
Desktop/IBM | 13.5 MB | IP | 12.0 MB |
Enterprise | 15.0 MB | Desktop/IBM | 13.0 MB |
Enterprise/APPN | 17.0 MB | Desktop/IBM/APPN | 15.0 MB |
Enterprise | 14.5 MB | ||
Enterprise/APPN | 16.5 MB | ||
| Cisco IOS Software Release 11.3 T | Cisco IOS Software Release 11.3 AA | ||
|---|---|---|---|
| Subset Image | Processor Memory Required | Subset Image | Processor Memory Required |
Network Layer 3 Switching | 12.7 MB | Cisco AS5800 Series IOS IP Plus | 24 MB |
IP | 14.0 MB | ||
Desktop/IBM | 15.5 MB | ||
Enterprise | 17.0 MB | ||
Enterprise/APPN | 19.0 MB | ||
| Subset Image | Processor Memory Required |
|---|---|
Network Layer 3 Switching | 22.0 MB |
IP | 25.0 MB |
IP/FW | 26.0 MB |
Desktop/IBM | 26.0 MB |
Desktop/IBM/FW | 27.0 MB |
Enterprise | 28.0 MB |
Enterprise/APPN | 30.0 MB |
Enterprise/APPN Starpipes | 31.0 MB |
Enterprise/FW | 29.0 MB |
| DRAM Option | NPE-100 | NPE-150 | NPE-200 | |||
|---|---|---|---|---|---|---|
| Processor Memory | I/O Memory | Processor Memory | I/O Memory1 | Processor Memory | I/O Memory2 | |
32 MB | 26 MB | 6 MB | 26 MB | 7 MB | 26 MB | 10 MB |
64 MB | 56 MB | 8 MB | 56 MB | 9 MB | 56 MB | 12 MB |
128 MB | 120 MB | 8 MB | 120 MB | 9 MB | 120 MB | 12 MB3 |
| 1The I/O memory for the NPE-150 DRAM options includes 1 MB of packet SRAM. 2The I/O memory for the NPE-200 DRAM options includes 4 MB of packet SRAM. 3For Cisco 7206 router shelf memory requirements, refer to the Cisco AS5800 Universal Access Server documentation listed in the "For More Information" section. |
| SDRAM Option | NPE-175, NPE-225, and NSE-1 | |
|---|---|---|
| Processor Memory | I/O Memory | |
64 MB1 | 56 MB | 8 MB |
128 MB | 116 MB | 12 MB |
| 164-MB SDRAM is not available for the NSE-1. |
| SDRAM Option | Processor Memory | I/O Memory |
|---|---|---|
64 MB | 28 MB | 36 MB |
96 MB | 60 MB | 36 MB |
160 MB | 120 MB | 40 MB |
288 MB | 248 MB | 40 MB |
| Item | Processor Memory Required | |
|---|---|---|
Cisco IOS software subset image |
|
|
| 11.5 MB1 or | 22.0 MB2 |
Port adapters |
|
|
| 0.10 MB3 |
|
| 0.10 MB3 |
|
| 0.10 MB3 |
|
| 0.30 MB3 |
|
|
| |
| 1.80 MB3 |
|
Totals | 18.7 MB or | 29.2 MB |
Minimum DRAM required | 32 MB or | 64 MB |
| 1Specific to Cisco IOS Release 11.1 CA. 2Specific to Cisco IOS Release 12.0 T. 3Specific to Cisco IOS Release 11.1 CA, Release 11.1 CC, Release 11.2 P, Release 11.3 T, Release 11.3 AA, and Release 12.0 T. 4Additional processor memory required for ISDN functionality. |
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Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
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|---|---|
English | tac@cisco.com |
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