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C H A P T E R

1-1

Cisco 7100 Series VPN Router Installation and Configuration Guide

78-6341-03

1

Overview

This chapter provides physical and functional overviews of Cisco 7100 series VPN routers and contains 
the following sections that describe router hardware, major components, and functions of 
hardware-related features: 

Product Description, page 1-1

Cisco 7120 Series Overview, page 1-5

Cisco 7140 Series Overview, page 1-14

Field-Replaceable Units, page 1-22

Functional Overview, page 1-30

Product Description

Cisco 7100 series VPN  routers support Virtual Private Networks (VPNs) and provide an integrated 
solution for security, quality of service (QoS), and service-level validation with emphasis on network 
technologies such as encryption and tunneling using IP Security (IPSec), Layer 2 Tunneling Protocol 
(L2TP), Generic Routing Encapsulation (GRE), and Layer 2 Forwarding (L2F) tunneling to ensure 
private transactions over public data networks. Cisco 7100 series VPN routers are designed for the 
enterprise WAN edge market and customer premises equipment (CPE) for the service provider as shown 
in 

Figure 1-1

Note

For more information on VPN software features, refer to the 

Cisco 7100 Series VPN Configuration 

Guide

 available online and on the Documentation CD. 

Summary of Contents for 7120 Series

Page 1: ...ries VPN routers support Virtual Private Networks VPNs and provide an integrated solution for security quality of service QoS and service level validation with emphasis on network technologies such as encryption and tunneling using IP Security IPSec Layer 2 Tunneling Protocol L2TP Generic Routing Encapsulation GRE and Layer 2 Forwarding L2F tunneling to ensure private transactions over public data...

Page 2: ...odels The models are defined by the WAN interface Figure 1 2 shows the front of a Cisco 7100 series VPN router The front of the router is the same on both Cisco 7120 series and Cisco 7140 series routers The specific model number is located on the back of each unit Figure 1 2 Cisco 7100 Series Front View Cisco 7100 series VPN routers support the following features Online insertion and removal OIR A...

Page 3: ...on that supports IPSec encryption of IP datagrams Figure 1 3 shows a Cisco 7120 series router from the back and Figure 1 4 shows a Cisco 7140 series router All interface connections and LEDs are located at the back of the router The Cisco 7100 series VPN routers have the following components One fixed WAN port on the Cisco 7120 series T1 T3 E3 or ATM T3 E3 or OC 3c STM1 single mode intermediate re...

Page 4: ...tion for a two hole grounding lug On the back of the chassis there is a receptacle for electrostatic discharge ESD equipment See Figure 1 3 and Figure 1 4 Four internal fans draw cooling air into the chassis back to front and across internal components to maintain an acceptable operating temperature There are four environmental sensors for monitoring the cooling air as it leaves the chassis For mo...

Page 5: ...er for the rack mount kit is ACS 7100 RMK Instructions for setting the router on a tabletop installing the router in an equipment rack and attaching the cable management bracket are the same for all Cisco 7100 series VPN models and are explained in Chapter 3 Installing a Cisco 7100 VPN Series Router Cisco 7120 Series Overview Cisco 7120 series routers include the following models Cisco 7120 4T1 Pr...

Page 6: ... shows the back of the Cisco 7120 4T1 Access to the interfaces is located at the back of the router Figure 1 5 Cisco 7120 4T1 Back View 0 2 T D T C R D R C L B C D T D T C R D R C L B C D T D EN T C R D R C L B C D SLOT 0 SLOT 1 5 I CONS FE T C R D R C L B C D T D 0 0 FE ACT 0 1 AUX 7120 4T1 ACT LNK 0 LNK 1 PWR SYS RDY 18483 T1 WAN ports LEDs Console and auxiliary ports Modular port adapter Servic...

Page 7: ... R D R C L B C D EN T C T D R D R C L B C D 5 I T C R D R C L B C D T D 18485 T C T D R D R C L B C D EN LEDs Table 1 1 Cisco 7120 4T1 LEd Descriptions LED Label Color State Function EN Green On Indicates ports are ready TD Green On DTE Transmit data out DCE Transmit data in TC Green On DTE Transmit clock in DCE Transmit clock in TxCE RD Green On DTE Receive data in DCE Receive data out RC Green O...

Page 8: ...Scrambling and bandwidth reduction Loopbacks ATM DXI Frame Relay HDLC SMDS and PPP serial encapsulation RFC 1213 and RFC 1407 Figure 1 7 shows the back of the Cisco 7120 T3 Access to the interfaces is located at the back of the router Figure 1 7 Cisco 7120 T3 Back View SLOT 0 SLOT 1 XMTR RCVR EN RCLK FERF RL AIS OOF LL FE 0 0 FE AUX 7120 T3 5 I CONS ACT 0 1 ACT LNK 0 LNK 1 PWR SYS RDY 0 2 Console ...

Page 9: ...wing features Integrated data service unit DSU functionality 16 and 32 bit cyclic redundancy checks CRCs HDB3 line coding Scrambling and bandwidth reduction G 751 framing or bypass framing National service bits Loopbacks ATM DXI Frame Relay HDLC SMDS and PPP serial encapsulation RFC 1213 and RFC 1407 Table 1 2 Cisco 720 T3 LED Descriptions LED Label Color State Function EN Green On Indicates the p...

Page 10: ...1 XMTR RCVR EN RCLK FERF RL AIS OOF LL FE 0 0 FE AUX 7120 E3 5 I CONS ACT 0 1 ACT LNK 0 LNK 1 PWR SYS RDY 0 2 Console and auxiliary ports Fixed LAN ports Power supply E3 WAN port serial 1 0 LEDs LED Modular port adapter Fast Ethernet 0 0 Fast Ethernet 0 1 PC Card slots covered Service module Table 1 3 Cisco 7120 E3 LED Descriptions LED Label Color State Function EN Green On Indicates the port is r...

Page 11: ... ATM adaptation layer 5 AAL5 for data traffic Traffic shaping on a per VC basis IP to ATM class of service CoS Non real time variable bit rate nrt VBR unspecified bit rate UBR and available bit rate ABR quality of service QoS Operation Administration and Maintenance alarm indication signal OAM AIS cells LAN emulation LANE User Network Interface UNI signaling Integrated Local Management Interface I...

Page 12: ...SLOT 1 0 2 FE 0 0 FE AUX 7120 AE3 RX TX E3 RX EN CEL CAR ALM 5 I CONS ACT 0 1 ACT LNK 0 LNK 1 PWR SYS RDY Console and auxiliary ports Fixed LAN ports Power supply ATM E3 WAN port ATM 1 0 18491 LEDs Modular port adapter Fast Ethernet 0 0 Fast Ethernet 0 1 PC Card slots covered Service module SLOT 0 SLOT 1 5 OC 3 SMI RX RX EN CEL CAR ALM TX I CONS FE 0 0 FE ACT 0 1 AUX 0 2 7120 SMI3 RX EN CEL CAR AL...

Page 13: ...any reason the enabled LED will not go on The LEDs are shown in Figure 1 14 and described in Table 1 4 Figure 1 14 Cisco 7120 AT3 WAN Port LEDs Table 1 4 Cisco 7120 AT3 Cisco 7120 AE3 and Cisco 7120 SMI3 LED Descriptions LED Label Color State Function EN Green On Indicates the port is ready RX CEL Green On Indicates the port has received an ATM cell RX CAR Green On Indicates the port has detected ...

Page 14: ... duplex operation at E3 34 Mbps speeds Cisco 7140 2MM3 Provides two ATM ports that support full duplex operation at OC 3c STM1 multimode 155 Mbps speeds Cisco 7140 8T Provides eight high speed synchronous serial ports that support full duplex operation at T1 1 544 Mbps and E1 2 048 Mbps speeds Cisco 7140 2FE Provides two fixed LAN ports 10BaseT 100BaseTX autosensing Ethernet Fast Ethernet full and...

Page 15: ...CLK FERF RL AIS OOF LL RCLK FERF RL AIS OOF LL FE 0 0 FE 0 1 5 I CONS ACT AUX 0 2 7140 2T3 ACT LNK 0 LNK 1 PWR SYS RDY Console and auxiliary ports Fixed LAN ports Power supplies T3 WAN port serial 1 0 T3 WAN port serial 2 0 18492 LEDs LED Modular port adapter Fast Ethernet 0 1 Fast Ethernet 0 0 PC Card slots covered Service module Table 1 5 Cisco 7140 2T3 LED Descriptions LED Label Color State Fun...

Page 16: ... framing or bypass framing National service bits Loopbacks ATM DXI Frame Relay HDLC SMDS and PPP serial encapsulation RFC 1213 and RFC 1407 Figure 1 17 shows the back of the Cisco 7140 2E3 Access to the interfaces is located at the back of the router Figure 1 17 Cisco 7140 2E3 Back View AC OK DC OK OTF AC OK DC OK OTF SLOT 0 SLOT 1 TX RX TX RX EN RCLK FERF RL AIS OOF LL RCLK FERF RL AIS OOF LL FE ...

Page 17: ... at OC 3c STM1 multimode 155 Mbps speeds These models provides the following features Up to 4096 total virtual circuits open VCs Up to 1024 simultaneous SARs ATM adaptation layer 5 AAL5 for data traffic Traffic shaping on a per VC basis IP to ATM CoS Non real time variable bit rate nrt VBR unspecified bit rate UBR and available bit rate ABR quality of service QoS Operation Administration and Maint...

Page 18: ...AC OK DC OK OTF AC OK DC OK OTF RX TX DS3 RX 5 TX DS3 RX EN CEL CAR ALM I CONS FE 0 0 FE ACT 0 1 AUX 0 2 7140 2AT3 RX EN CEL CAR ALM ACT LNK 0 LNK 1 PWR SYS RDY Console and auxiliary ports Fixed LAN ports LEDs 18495 Power supplies ATM T3 WAN port ATM 1 0 ATM T3 WAN port ATM 2 0 Modular port adapter Fast Ethernet 0 1 Fast Ethernet 0 0 Service module PC Card slots covered SLOT 0 SLOT 1 AC OK DC OK O...

Page 19: ...isco 7140 2AT3 WAN Port LEDs SLOT 0 SLOT 1 5 155 MM RX RX EN CEL CAR ALM TX I 155 MM CONS FE 0 0 FE ACT 0 1 AUX AC OK DC OK OTF AC OK DC OK OTF 0 2 RX 7140 2MM3 RX EN CEL CAR ALM TX ACT LNK 0 LNK 1 PWR SYS RDY Console and auxiliary ports Fixed LAN ports LEDs 18497 Power supplies ATM OC 3 multimode WAN port ATM 1 0 LEDs ATM OC 3 multimode WAN port ATM 2 0 Modular port adapter Fast Ethernet 0 1 Fast...

Page 20: ...a Link Control HDLC Point to Point Protocol PPP and Switched Multimegabit Data Service SMDS encapsulation RFC 1406 except for the Frac table Figure 1 23 shows the back of the Cisco 7140 8T Access to the interfaces is located at the back of the router Figure 1 23 Cisco 7140 8T Back View CD CD CD CD 0 2 T D T C R D R C L B T D T C R D R C L B T D EN T C R D R C L B SLOT 0 SLOT 1 5 I CONS FE T C R D ...

Page 21: ...s LED Label Color State Function EN Green On Indicates ports are ready TD Green On DTE Transmit data out DCE Transmit data in TC Green On DTE Transmit clock in DCE Transmit clock in TxCE RD Green On DTE Receive data in DCE Receive data out RC Green On DTE Receive clock in DCE Receive clock out Loopback Green On Indicates DTR1 DSR2 RTS3 CTS4 or DCD5 is active 1 DTR Data Terminal Ready 2 DSR Data Se...

Page 22: ...on Module VAM page 1 26 Flash Disks page 1 27 SDRAM Memory page 1 28 Rack Mount and Cable Management Kit page 1 29 Note Replacement instructions for the rack mount and cable management kit SDRAM memory and Flash memory PC Cards are contained in the Installing Field Replaceable Units in Cisco 7100 Series VPN Routers document Replacement instructions for removing and replacing other FRUs are contain...

Page 23: ...ort Ethernet port adapter in your Cisco 7100 series VPN router refer to the PA 4E Ethernet 10BaseT Port Adapter Installation and Configuration note The document is available online and on the Documentation CD ROM Figure 1 26 Port Adapter Locking Tabs Cisco 7120 Series Caution To ensure adequate airflow across the router port adapters a port adapter or a blank port adapter must be installed in each...

Page 24: ...pecific and important information ISM The Integrated Service Module ISM is a service module that resides in slot 5 in Cisco 7100 series VPN routers The ISM has three LEDs as shown in Figure 1 27 Table 1 9 lists the colors and functions of the LEDs Figure 1 27 ISM LEDs Note The physical orientation of the ISM LEDs is reversed from that of the ISA see Figure 1 27 The following conditions must all be...

Page 25: ...A LEDs Figure 1 28 ISA Front Panel LEDs SA ISA shown The following conditions must all be met before the enabled LED goes on The ISA is correctly connected to the backplane and receiving power The system bus recognizes the ISA If either of these conditions is not met or if the router initialization fails the enabled LED does not go on Table 1 10 ISA LEDs LED Label Color State Function ENABLE Green...

Page 26: ...he Cisco 7120 series routers and slot 4 in the Cisco 7140 series routers The SA VAM has three LEDs as shown in Figure 1 29 Table 1 11 lists the colors and functions of the SA VAM LEDs Figure 1 29 SA VAM LEDs The following conditions must be met before the enabled LED goes on The SA VAM is correctly connected to the backplane and receiving power The system bus recognizes the SA VAM If either of the...

Page 27: ...he PC Card slots located at the back of the router Slot 0 is the top slot and slot 1 is the bottom slot The PC Card must be installed with the back label facing up The PC Card is keyed and cannot be seated the wrong way The ejector button will not pop out if the card is not completely inserted To ensure proper electromagnetic compatibility EMC the PC Card slot has a cover that is secured with a ca...

Page 28: ...laceable Units in Cisco 7100 Series VPN Routers document available on cisco com and on the Documentation CD ROM SDRAM Memory Warning Only trained and qualified personnel should be allowed to install replace or service this equipment This equipment contains an energy hazard Disconnect the system before servicing SDRAM memory consists of three DIMMs on the network processor card that contain the pac...

Page 29: ...hat shipped with your router See the Setting the Chassis on a Tabletop section on page 3 1 For detailed instructions about how to install the rack mount and cable management brackets on your Cisco 7100 series router see the Rack Mounting the Chassis section on page 3 2 and the Connecting to the Network section on page 3 7 Note Information on how to install the rack mount and cable management brack...

Page 30: ...0 series router slots are numbered 0 through 5 Interfaces in the Cisco IOS software are identified by a type slot number and port number The number of physical ports depends on the type of modular port adapter or fixed interface For example in a Cisco 7120 4T1 serial 1 0 indicates port 0 on the fixed serial interface in slot 1 See Figure 1 5 Slots in the Cisco 7120 series are numbered as follows a...

Page 31: ...ne protocol is up Hardware is DEC21140A address is 0050 73ff 6300 bia 0050 73ff 6300 Internet address is 10 0 0 0 1 MTU 1500 bytes BW 10000 Kbit DLY 1000 usec display text omitted FastEthernet0 1 is administratively down line protocol is down Hardware is DEC21140A address is 0050 73ff 6301 bia 0050 73ff 6301 Internet address is 10 0 0 0 2 MTU 1500 bytes BW 100000 Kbit DLY 100 usec display text omi...

Page 32: ...buffers swapped out For information on the other commands used to configure the router refer to the Cisco IOS configuration guides and command references which are available on the Documentation CD ROM or in print MAC Addresses The Media Access Control MAC or hardware address is a standardized data link layer address that is required for certain network interface types These addresses are not used...

Page 33: ...to determine if a port adapter is being removed or inserted into the router From these signals the system determines whether to reinitialize a new interface or shut down a removed interface For example when you insert a port adapter the longest pins make contact with the port adapter first and the shortest pins make contact last The system recognizes the signals and the sequence in which it receiv...

Page 34: ... processor card also performs the following system management functions Sending and receiving routing protocol updates Managing tables caches and buffers Monitoring interface and environmental status Providing Simple Network Management Protocol SNMP management and the console or Telnet interface Accounting and switching of data traffic Booting and reloading images Managing port adapters recognitio...

Page 35: ...ions There are two independent SDRAM memory arrays that allow concurrent access by interfaces and the processor Note The network processor card contains two SDRAM slots for user configurable system and packet memory DIMM 1 and DIMM 2 The amount of memory installed in slot DIMM 1 must be greater than or equal to the amount of memory installed in slot DIMM 2 and slot DIMM 2 can be zero Slot DIMM 0 i...

Page 36: ... uses lithium batteries to maintain its contents when disconnected from power Console port Provides access for a local terminal and is equipped with an RJ 45 receptacle Auxiliary port Provides access for a modem for remote access and is equipped with an RJ 45 receptacle Two fixed LAN ports Provide 10BaseT 100BaseTX autosensing Ethernet Fast Ethernet full and half duplex and are equipped with an RJ...

Page 37: ...entation 40 Rev 10 0 2048KB L2 Cache Last reset from power on X 25 software Version 3 0 0 Primary cache Cisco 7120 32 KB instruction 32 KB data Processor s primary internal cache Internal to processor Cisco 7140 16 KB instruction 16 KB data Processor s primary internal cache Internal to processor Secondary cache3 256 KB Processor s secondary unified instruction and data cache Internal to Cisco 714...

Page 38: ...wer supply LEDs while Cisco 7140 series routers have two identical banks of three LEDs that correspond to each AC input receptacle Table 1 16 Cisco 7100 Series System LED Descriptions LED Label Color State Function ACT 0 ACT 1 Green On Indicates 10BaseT 100BaseTX Ethernet ports are transmitting or receiving packets activity LNK 0 LNK 1 Green On Indicates 10BaseT 100BaseTX Ethernet ports have estab...

Page 39: ...the cooling air as it moves through the chassis If the air temperature exceeds a defined threshold the router displays warning messages on the console terminal The system stores the present parameter measurements for both temperature and power voltage in NVRAM so you can retrieve them later In addition the power supply monitors the internal power supply temperature and voltages A power supply is e...

Page 40: ...onment last and show environment table commands Parameters are measured and reporting functions are updated every 60 seconds A brief description of each of these commands follows Caution To prevent overheating the chassis ensure that your system is drawing cool inlet air Overtemperature conditions can occur if the system is drawing in the exhaust air of other equipment Ensure adequate clearance ar...

Page 41: ...viously measured at 28C 82F chassis outlet 1previously measured at 31C 87F chassis outlet 2previously measured at 33C 91F 2 5 Vpreviously measured at 2 59 3 3 Vpreviously measured at 3 32 5 15 Vpreviously measured at 5 13 12 3 Vpreviously measured at 12 99 12 3 Vpreviously measured at 12 33 12 5 Vpreviously measured at 12 43 The show environment table command displays the temperature and voltage t...

Page 42: ...12 29 V 12 3 V measured at 12 33 V 12 5 V measured at 12 43 V Envm stats saved 2 time s since reload Fan Failures When the system power is on all four fans should be operational The system continues to operate if a fan fails however if the air temperature exceeds a defined threshold the router displays warning messages on the console terminal See the Troubleshooting the Cooling Subsystem section o...

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