Table Of Contents
Cisco 7200 Series Port Adapter Installation Requirements
Configuration Guidelines and Requirements
PCI Buses and Port Adapter and I/O Controller Architecture
Installation Requirements Based on the NPE or NSE Installed
NPE-G1 or NPE-G2 Bandwidth Calculation and Configuration Instructions
Sample Bandwidth Configuration for the NPE-G1 or NPE-G2
NPE-400, NPE-300, and NSE-1 Bandwidth Calculation and Configuration Instructions
Sample Bandwidth Configuration for the NPE-400, NPE-300, and NSE-1
NPE-225, NPE-200, NPE-175, NPE-150, and NPE-100 Bandwidth Calculation and Configuration Instructions
Sample Bandwidth Configuration for the NPE-225, NPE-200, NPE-175, and NPE-150
Bandwidth and Bandwidth Point Requirements
NPE-225, NPE-200, NPE-175, NPE-150
Messages for One Port Use of Specific Port Adapters and an I/O Controller
Cisco 7200 Series Port Adapter Installation Requirements
Cisco 7200 series routers (the 2-slot Cisco 7202, the 4-slot Cisco 7204 and Cisco 7204VXR, and the 6-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.
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 "Other Documentation" section on page vi.
This chapter contains the following sections:
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Chassis Overview—Front View
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 PC Cards or Flash Disks; and optional Ethernet, Fast Ethernet, or Gigabit Ethernet ports.
The NPE-G1 and NPE-G2 work with the I/O controller when installed in a Cisco 7200 VXR router. The NPE-G1 or NPE-G2 can also be used without an I/O controller; both have three Gigabit Ethernet interfaces, with a total of three of six ports (three RJ-45 and three GBIC modules on the NPE-G1, or three SFP modules on the NPE-G2) available at one time, a CompactFlash Disk, and a console port and auxiliary port. In addition, the NPE-G2 has a Fast Ethernet Management port and two USB ports for security tokens and data file storage. The Port Adapter Jacket Card can be used in the I/O controller slot, if an NPE-G1 or NPE-G2 is installed.
Figure 1-1 shows a Cisco 7206VXR with installed port adapters and an I/O controller with a Fast Ethernet port.
Figure 1-1 Cisco 7200 Series Router—Front View (Cisco 7206VXR Shown)
Blank port adapter
Optional Fast Ethernet port (MII port and RJ-45 port)
Port adapter lever
Port adapters
I/O controller
Auxiliary port
PC Card slots
Console port
Note
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.
Chassis Overview—Rear View
Figure 1-2 Cisco 7200 Series Router—Rear View
Power supply filler plate
AC-input power supply
Chassis grounding receptacles
AC-input power receptacle
Network processing engine or network services engine
Internal fans
Power switch
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 1-2).
Most NPEs and the 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.
The NPE-G1 and NPE-G2 have external connectors for Gigabit Ethernet interfaces, and a console port and auxiliary port; the NPE-G2 also has a Fast Ethernet Management port. The NPE-G1 and NPE-G2 also have a cable-management bracket.
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 1-2).
Note
Three internal fans draw cooling air into the chassis interior and across internal components to maintain an acceptable operating temperature (see Figure 1-2). The three fans are enclosed in a tray that is located in the subchassis.
The I/O controller, port adapters, Port Adapter Jacket Card, 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.
Configuration Guidelines and Requirements
Understanding the relationship between the three Peripheral Component Interconnect (PCI) buses, I/O controller, and port adapters is important in understanding the rationale for the bandwidth point information that is provided in this document.
PCI Buses and Port Adapter and I/O Controller Architecture
All port adapters and service adapters installed in Cisco 7200 series routers connect to one of two Peripheral Component Interconnect (PCI) buses, mb1(left bus) or mb2 (right bus), 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 controller connect to a third PCI bus, mb0 (left bus), 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.
With an NPE-G1 or NPE-G2 installed, the I/O controller connects on the third PCI bus, mb0, which connects directly into the NPE-G1 or NPE-G2. When installed with the NPE-G1 or NPE-G2, the I/O controller does not take bandwidth from the two PCI buses (left and right) dedicated to the port adapters.
The Port Adapter Jacket Card, for use in the Cisco 7200 VXR routers and only with the NPE-G1 or NPE-G2, installs in the I/O controller slot on PCI bus mb0. Because the Port Adapter Jacket Card accepts only one port adapter, and the PCI bus provides another 600 bandwidth points, this bus cannot be oversubscribed because no port adapter is assigned more than 600 bandwidth points.
Guidelines for distributing the port adapters evenly between the two buses are given in the "Guidelines for Installation" section.
Port Adapter Slot Numbering
Figure 1-3 Cisco 7200 Series Port Adapter Slot Numbering—Cisco 7206 Shown
Figure 1-3 shows the port adapter slot numbering for the Cisco 7200 series routers. Figure 1-4 shows the port adapter slot numbering for the Cisco 7200 VXR routers with the Port Adapter Jacket Card installed.
For the Cisco 7202, Cisco 7204, and Cisco 7206 routers, port adapters in odd-numbered slots connect to PCI bus mb1 (left bus). Port adapters in even-numbered slots connect to PCI bus mb2 (right bus). The I/O controller connects to PCI bus mb0 (left bus), port adapter slot 0. The I/O controller is considered part of the left bus when calculating bandwidth points.
For the Cisco 7204VXR and Cisco 7206VXR routers, port adapters in odd-numbered slots connect to PCI bus mb1 (left bus). Port adapters in even-numbered slots connect to PCI bus mb2 (right bus). The I/O controller connects to PCI bus mb0 (left bus), port adapter slot 0. The I/O controller is considered part of the left bus when calculating bandwidth points, except in the case of the NPE-G1 or NPE-G2. With the NPE-G1 or NPE-G2 installed, the I/O controller connects on the third PCI bus, mb0, which connects directly into the NPE-G1 or NPE-G2, and so does not use bandwidth points.
Note
Figure 1-4 Cisco 7200 VXR Port Adapter Slot Numbering—With Port Adapter Jacket Card
Note
The Port Adapter Jacket Card installs into the I/O controller slot on the third PCI bus, mb0. The Port Adapter Jacket Card is designated slot 0, and the port adapter installed in it is designated port adapter slot 7 on the Cisco 7206 VXR router, and slot 5 on the Cisco 7204 VXR router.
Guidelines for Installation
Cisco 7200 series routers have a finite 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.
To ensure that your Cisco 7200 series router port adapter configuration is within the router operating limits, observe the following guidelines and requirements when planning to install a port adapter, network processing engine or network services engine, or I/O controller. "Memory Requirements," provides information about various types of memory requirements for the hardware and software that support port adapters.
Table 1-1 provides general guidelines for Cisco 7200 series routers.
Table 1-1 Initial Guidelines for Cisco 7200 Series Routers
What port adapters are supported on which Cisco IOS release?
If you have a Cisco.com login ID1 , use the Software Advisor. To access the Software Advisor, go to:
http://www.cisco.com, Technical Support and Documentation, and click Tools and Resourcess, and click Software Advisor. Under Software Support for Hardware, click the appropriate link. Then choose your platform and a Cisco IOS release.
Do NPEs or the NSE use bandwidth points?
No. The network processing engine (NPE) or network services engine (NSE) provide bandwidth to the system. Newer NPEs or NSEs provide more bandwidth than older NPEs.
Are there memory requirements associated with both the individual port adapter and the number and type of port adapters that can be installed?
For individual port adapter processor memory requirements, see Table 1-6. For NPE or NSE, Cisco IOS, and router SDRAM memory requirements, see "Memory Requirements."
1 You can request a Cisco.com login ID. To become a registered user, refer to Registration at http://tools.cisco.com/RPF/register/register.do.
Installation Requirements Based on the NPE or NSE Installed
To ensure that your Cisco 7200 series port adapter configuration is within the router operating limitations, determine your model of network processing engine or network services engine and observe the following guidelines:
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NPE-G1 or NPE-G2 Bandwidth Calculation and Configuration Instructions
Step 1
Step 2
Step 3
Note
Step 4
•
•
Step 5
Step 6
You are finished calculating your port adapter configuration.
Sample Bandwidth Configuration for the NPE-G1 or NPE-G2
This sample configuration is for a Cisco 7200 VXR chassis with an NPE-G1 or NPE-G2 installed. The maximum points allowed for each PCI bus is 600 points. When any I/O controller is installed with the NPE-G1 or NPE-G2, no bandwidth points are used. The Gigabit Ethernet interfaces on the NPE-G1 or NPE-G2 also require no bandwidth points.
NPE-G1 or NPE-G2 with a Port Adapter Jacket Card—Bandwidth Calculation and Configuration Instructions
The Port Adapter Jacket Card works only with the NPE-G1 or NPE-G2 installed in Cisco 7200 VXR router. Because of the third PCI bus provided by these network processing engines, the Port Adapter Jacket Card PCI bus mb0 provides an additional 600 bandwidth points. Only one port adapter can be inserted into the port adapter slot in the Port Adapter Jacket Card. Because no port adapter is assigned more than 600 bandwidth points, there is no need to do any calculation of points for port adapter slot 5 (Cisco 7204 VXR) or slot 7 (Cisco 7206 VXR), PCI bus mb0.
NPE-400, NPE-300, and NSE-1 Bandwidth Calculation and Configuration Instructions
Step 1
Step 2
Step 3
Step 4
•
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Step 5
Step 6
You are finished calculating your port adapter configuration.
Note
The dual-width PA-A2 port adapter uses only PCI bus mb2 (right bus) when installed in a Cisco 7200 series router.
The dual-width PA-12E/2FE port adapter autoselects PCI bus mb1 (left bus) or PCI bus mb2 (right bus) based on bandwidth availability—the port adapter selects the PCI 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 PCI bus mb1 (left bus) and PCI bus mb2 (right bus). Instead, add the bandwidth points for the PA-12E/2FE to the PCI bus that has the most PCI bus bandwidth availability (the PCI bus the PA-12E/2FE will autoselect) after completing the initial calculation.
Sample Bandwidth Configuration for the NPE-400, NPE-300, and NSE-1
This sample configuration is for a Cisco 7200 VXR chassis with an NPE-400 installed. The maximum points allowed for each PCI bus is 600 points. The I/O controller is considered a port adapter in bandwidth point calculation.
NPE-225, NPE-200, NPE-175, NPE-150, and NPE-100 Bandwidth Calculation and Configuration Instructions
Step 1
Step 2
Step 3
a.
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–
b.
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–
Step 4
Step 5
Step 6
You are finished calculating your port adapter configuration.
Note
The dual-width PA-A2 port adapter uses only PCI bus mb2 (right bus) when installed in a Cisco 7200 series router.
The dual-width PA-12E/2FE port adapter autoselects PCI bus mb1 (left bus) or PCI bus mb2 (right bus) based on bandwidth availability—the port adapter selects the PCI 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 PCI bus mb1 (left bus) and PCI bus mb2 (right bus). Instead, add the bandwidth points for the PA-12E/2FE to the PCI bus that has the most PCI bus bandwidth availability (the PCI bus the PA-12E/2FE will autoselect) after completing the initial calculation.
Sample Bandwidth Configuration for the NPE-225, NPE-200, NPE-175, and NPE-150
The following sample configurations are for a Cisco 7200 series router with an I/O controller and NPE-225 installed. The maximum points allowed is 800 points per chassis.
The sample configuration in Table 1-4 follows the rule of keeping below the 800 maximum bandwidth points, and having no more than three high-bandwidth port adapters, and having no more than five high- and medium-bandwidth port adapters in a chassis with an NPE-225. All three rules must be followed for a configuration to be valid. The I/O controller is considered a port adapter in point calculation.
The configuration in Table 1-5 is invalid because, although the bandwidth points are less than 800, there are four high-bandwidth port adapters installed, not three high-bandwidth port adapters as the rules allow. All three rules (no more than 800 bandwidth points, no more than three high-bandwidth port adapters, and no more than five high- and medium-bandwidth port adapters in a chassis with an NPE-225) must be followed for the configuration to be valid. The I/O controller is considered a port adapter in point calculation.
Bandwidth and Bandwidth Point Requirements
Port adapters use various types of resources from the chassis and the NPE or NSE. Bandwidth is a term that describes port adapter resource requirements. Bandwidth includes variables such as speed, memory, CPU requirements, and PCI bus bandwidth. Because of changes in architecture in the network processing engines over the years, two methods were developed to describe port adapter bandwidth requirements. The methods are reflected in the Bandwidth Resource Requirement column and the Bandwidth Points column of Table 1-6. However, the information in these columns must be considered with the information in the following sections:
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Table 1-6 lists port adapter types, bandwidth resource requirements and bandwidth points, and processor memory requirements.
Requirements Summary
This section provides a summary of bandwidth and bandwidth point requirements for each processing engine.
Port Adapter Jacket Card
PCI bus mb0 has a 600 point maximum. The Port Adapter Jacket Card accepts one port adapter which can use a maximum of 600 bandwidth points. PCI bus mb0 with a Port Adapter Jacket Card installed is designated as port adapter slot 5 in a Cisco 7204VXR router, or slot 7 in a Cisco 7206VXR router.
NPE-G1 or NPE-G2
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NPE-400, NPE-300, NSE-1
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NPE-225, NPE-200, NPE-175, NPE-150
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–
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NPE-100
•
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Bandwidth Table
Use the table below to determine the bandwidth points for your port adapter and I/O controller.
Table 1-6 Bandwidth, Bandwidth Points, and Processor Memory Requirements
VPN Service Adapter (VSA)
C7200 VSA
Because the VSA installs only in the I/O slot of the Cisco 7200 VXR chassis, no bandwidth point calculations are required.
9 MB
—
1-port multimode
PA-A1-OC3MM
High
300
0.10 MB
—2
1-port single-mode intermediate reach
PA-A1-OC3SMI
Circuit emulation services (CES)
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
Enhanced
PA-A3-T3
High
90
1.00 MB
—
PA-A3-E3
PA-A3-OC3MM
300
1.00 MB
—
PA-A3-OC3SMI
PA-A3-OC3SML
Inverse multiplexing over ATM
PA-A3-8T1IMA
Low
0
4.3 MB
—
PA-A3-8E1IMA
0
—
1-port OC3-multimode
PA-A6-OC3MM
High
300
2 MB
—
1-port OC3-single mode intermediate reach
PA-A6-OC3SMI
High
300
2 MB
—
1-port OC3-single mode long reach
PA-A6-OC3SML
High
300
2 MB
—
1-port Enterprise System Connection (ESCON) channel
PA-1C-E
High
100
0.05 MB
0.36 MB
1-port parallel channel
PA-1C-P
Low3
0
0.15 MB
0.36 MB
1-port Enterprise System Connection (ESCON) channel
PA-4C-E
High
100
0.15 MB
0.36 MB
1-port GB fiber channel interface
PA-FC-1G
High
400
3.1 MB
—
Multimode fiber
PA-SRP-OC12MM
High
150 + 1504
0.40 MB
—
Single-mode fiber, intermediate reach
PA-SRP-OC12SMI
High
3004
0.40 MB
—
Single-mode fiber, long reach
PA-SRP-SML
High
3004
0.40 MB
—
Single-mode fiber, extended reach
PA-SRP-SMX
High
3004
0.40 MB
—
2-port Fast Ethernet (FX)
PA-2FE-FX
High
400
2.4 MB
—
1 port use of
2-port Fast Ethernet (RX)PA-2FE-FX5
High
200
2.4 MB
—
2-port Fast Ethernet (TX)
PA-2FE-TX
High
400
2.4 MB
—
1 port use of
2-port Fast Ethernet (TX)PA-2FE-TX5
High
200
2.4 MB
—
14-port Ethernet switch
10/100BASETXPA-12E/2FE
High
300
0.17 MB
—
8-port Ethernet 10BASET
PA-8E
Medium
80
0.40 MB
—
5-port Ethernet 10BASEFL
PA-5EFL
50
0.25 MB
—
4-port Ethernet 10BASET
PA-4E
40
—
2-port Fast Ethernet/ISL 100BASETX
PA-2FEISL-TX
High
300
0.68 MB
—
2-port Fast Ethernet/ISL 100BASEFX
PA-2FEISL-FX
300
0.68 MB
—
1-port Fast Ethernet 100BASETX
PA-FE-TX
High
200
0.10 MB
—
1-port Fast Ethernet 100BASEFX
PA-FE-FX
High
200
0.10 MB
—
1-port 100VG-AnyLAN
PA-100VG
High
200
0.10 MB
—
1-port dial shelf interconnect6
PA-DSIC
High
200
0.10 MB
—
1-port full-duplex Gigabit Ethernet
PA-GE
Not supported
400
0.24 MB
—
1-port Gigabit Ethernet plus Ethernet I/O controller
C7200-I/O-GE+E7
High
400
0.11 MB
2-port Fast Ethernet/Ethernet
I/O controllerC7200-I/O-2FE/E8
High
400
0.10 MB
—
1 port use of
2-port Fast Ethernet/Ethernet
I/O controllerC7200-I/O-2FE/E9
High
200
0.10 MB
—
1-port Fast Ethernet I/O controller (2 connectors: RJ-45 and MII)
C7200-I/O-FE10
High
200
0.10 MB
—
1-port Fast Ethernet I/O controller (MII connector)
C7200-I/O-FE-MII10
High
200
0.10 MB
—
No Ethernet port I/O controller
C7200-I/O
None
0
—
—
Multimode
PA-F-MM11
High
10011
0.10 MB
—
Single-mode
PA-F-SM11
10011
Full-duplex multimode FDDI
PA-F/FD-MM11
20011
Full-duplex single-mode FDDI
PA-F/FD-SM11
20011
1-port high-speed serial
PA-H (Rev. B)
High
100
0.10 MB
—
2-port high-speed serial
PA-2H (Rev. B)
200
1-port channelized T3 dual-width
PA-CT3/4T111
High
011
0.80 MB
—
2-port channelized E1/Primary Rate Interface (PRI) ISDN
PA-2CE1/PRI-7511
Low
011
1.80 MB
1.20 MB (when configured for ISDN)
PA-2CE1/PRI-12011
2-port channelized T1/PRI ISDN
PA-2CT1/PRI11
Low3
0
1.80 MB
1.20 MB (when configured for ISDN)
8-port multichannel T1/E1 PRI
PA-MC-8TE1+
Low3
0
10 MB
1-port multichannel E3
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
1-port multichannel E1 STM1
PA-MC-STM-1SMI
High
250
10 MB
—
1-port multichannel E1 STM1
PA-MC-STM-1MM
High
250
10 MB
—
1-port multichannel T3
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
2-port multichannel T3
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
2- and 8-port multichannel E1/PRI
PA-MC-2E1/120
Low3
0
3.50 MB
—
PA-MC-8E1/120
2-, 4- and 8-port multichannel DS1/PRI
PA-MC-2T1
Low3
0
2.50 MB
—
PA-MC-4T1
PA-MC-8T1
3.10 MB
PA-MC-8DSX1
1-port multichannel T3
PA-MC-T3-EC
Supported only on Cisco 7200 VXR chassis with an NPE-G1 or NPE-G2
90
2.71 MB
2-port-multichannel T3
PA-MC-2T3-EC
180
2.71 MB
4- and 8-port Basic Rate Interface (BRI) ISDN
PA-4B-U
Low3
0
0.40 MB
1.20 MB
8 BRI ISDN
PA-8B-T
Low3
0
0.40 MB
1.20 MB
2-port function as either dual independent OC-3c/STM-1 ports or a single port with automatic switchover
PA-POS-2OC3
High
600
0.34 MB
—
1-port SFP module-based OC-3c/STM-1
PA-POS-1OC3
High
300
0.34 MB
—
1-port multimode
PA-POS-OC3-MM
High
300
0.15 MB
—
1-port single-mode intermediate reach
PA-POS-OC3SMI
1-port single-mode long reach
PA-POS-OC3SML
1-port E3 high-speed serial
PA-E3
High
90
0.07 MB
—
2-port E3 high-speed serial
PA-2E3
High
180
0.10 MB
—
1-port T3 high-speed serial
PA-T3
High
90
0.07 MB
—
2-port T3 high-speed serial
PA-2T3
High
180
0.10 MB
—
1-port T3+ high-speed serial
PA-T3+
High
90
0.07 MB
—
2-port T3+ high-speed serial
PA-2T3+
High
180
0.10 MB
—
1-port T3/E3 high-speed serial
PA-T3/E3-EC
90
2.71 MB
—
2-port T3/E3 high-speed serial
PA-2T3/E3-EC
180
2.71 MB
—
4-port E1-G.703/704 serial
PA-4E1G-75
Low3
0
0.10 MB
—
PA-4E1G-120
Low3
0
0.10 MB
—
8-port synchronous serial (X.21)
PA-8T-X21
Low3
0
0.35 MB
—
8-port synchronous serial (V.35)
PA-8T-V35
8-port synchronous serial (EIA/TIA-232)
PA-8T-232
4-port synchronous serial
PA-4T
Low3
0
0.20 MB
—
4-port synchronous serial, enhanced
PA-4T+
Data encryption service adapter
SA-Encrypt
Medium
60
0.03 MB
—
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