Cisco 7304 User Manual

CHA PTER

Starting and Configuring

This chapter describes how to start the system and perform a basic configuration for your Cisco 7304 router. The chapter contains the following sections:

• Functional Overview, page 3-1

• Checking Conditions Prior to System Startup, page 3-12

• Starting the System and Observing Initial Conditions, page 3-13

• Configuring a Cisco 7304 Router, page 3-14

• Performing Other Configuration Tasks, page 3-20

• Replacing or Recovering a Lost Password, page 3-20

• Viewing Your System Configuration, page 3-23

• Performing Complex Configurations, page 3-24

This chapter guides you through a basic router configuration, which is sufficient for you to access your network. Complex configuration procedures are beyond the scope of this publication and can be found in the modular configuration and modular command reference publications in the Cisco IOS software configuration documentation set that corresponds to the software release installed on your Cisco hardware.

To configure a Cisco 7304 router from a console, you need to connect a terminal to the router console port.

Functional Overview

This section provides a functional overview of the Cisco 7304 router. It describes the numbering and addressing scheme of the line cards for the router, the environmental monitoring and reporting functions, and online insertion and removal (OIR). These descriptions help you become familiar with the capabilities of the Cisco 7304 router.

Chassis Slot and Logical Interface Numbering

In the Cisco 7304 router, the slot-number is the chassis slot in which a line card, NPE-G100, NSE-100, or NSE-150 is installed, whereas the interface-port-number is the physical location of the interface port on a line card.

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Functional Overview

Note When a card is dual-wide (such as the NSE-100, NSE-150, or NPE-G100), the command-line interface

Chapter 3 Starting and Configuring

The line card and carrier card slots in the Cisco 7304 router are numbered slot 0 to slot 5. Slot 0 and slot 1 are reserved for the processing engine, NSE-100, NSE-150, or NPE-G100. Figure 3-1 shows the slot numbering for a Cisco 7304 with an NSE-100 installed in slot 0.

(CLI) will reference the card in the left-side slot number.

Figure 3-1 Cisco 7304 Slot Numbering

Slot 4

Slot 5

9K-10C48

OIR

STATUS

1-PORT OC48 POS w/ SM

-4

3/P

-M

OIR

STATUS

Slot 0

Slot 2

STATUS

4-PORT OC3 POS w/ MM

CARRIER/

ALARM

ACTIVE/ LOOPBACK

57905

Slot 3

Slot 1

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 by other devices in the network; they are specific and unique to each port. The Cisco 7304 router uses a specific method to assign and control the MAC addresses of its line cards. For a description of the MAC address, see the

“MAC Address” section on page 3-5.

You can identify which line cards are present with the show c7300 command.

Router> show c7300 Slot Card Type Status Insertion time

---- --------- ------ -------------0,1 NSE100 Active 1d17h ago 5 POS OC3 Active 1d17h ago

System is compliant with hardware configuration guidelines.

Network IO Interrupt Throttling: throttle count=2, timer count=2 active=0, configured=1 netint usec=3999, netint mask usec=200

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You can identify line card slots by using software commands. To display information about all line card slots, use the show interfaces command. To display information about a specific line card slot, use the show interfaces command with the line card type and slot number in the format show interfaces

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slot-number/interface-port number. If you abbreviate the command (sh int) and do not specify line card type and slot number (or arguments), the system interprets the command as show interfaces and displays the status of all line cards and ports.

The following example shows how the show interfaces command, used without arguments, displays status information (including the physical line card number) for each line card in a Cisco 7304 router with an NSE-100.

In the following example, most of the status information for each interface is omitted.

Router# show interfaces FastEthernet0/0 is up, line protocol is up Hardware is Mistral EOBC, address is 0060.2f86.0d20 (bia 0060.2f86.0d20) Internet address is 10.0.0.0/0 MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Half-duplex, 100Mb/s, MII ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:02, output hang never Last clearing of "show interface" counters 15:45:55 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 1000 bits/sec, 2 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 193906 packets input, 15705972 bytes Received 193776 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog 0 input packets with dribble condition detected 866 packets output, 76916 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out GigabitEthernet0/0 is up, line protocol is up Hardware is Pinnacle GE, address is 0060.2f86.0d00 (bia 0060.2f86.0d00) Internet address is 10.0.0.0/0 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex mode, link type is force-up, media type is unknown 25 output flow-control is unsupported, input flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output 15:45:44, output hang never Last clearing of "show interface" counters 15:46:04 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 pause output 0 output buffer failures, 0 output buffers swapped out GigabitEthernet0/1 is up, line protocol is up Hardware is Pinnacle GE, address is 0060.2f86.0d01 (bia 0060.2f86.0d01)

Functional Overview

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Functional Overview

Chapter 3 Starting and Configuring

Internet address is 10.0.0.0/0 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Full-duplex mode, link type is force-up, media type is unknown 25 output flow-control is unsupported, input flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input never, output 15:45:49, output hang never Last clearing of "show interface" counters 15:46:08 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 0 input packets with dribble condition detected 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 pause output 0 output buffer failures, 0 output buffers swapped out POS4/0 is up, line protocol is up Hardware is Packet over Sonet Internet address is 10.0.0.0/0 MTU 4470 bytes, BW 2488000 Kbit, DLY 100 usec, reliability 255/255, txload 53/255, rxload 50/255 Encapsulation HDLC, crc 16, loopback not set Keepalive not set Scramble disabled Last input 15:39:24, output 15:39:23, output hang never Last clearing of "show interface" counters 15:46:20 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 492305000 bits/sec, 1538508 packets/sec 5 minute output rate 525842000 bits/sec, 43878 packets/sec 1201804187 packets input, 827532624 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 parity 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 2486540100 packets output, 1100263868 bytes, 0 underruns 0 output errors, 0 applique, 0 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions POS5/0 is up, line protocol is up Hardware is Packet over Sonet Internet address is 10.0.0.0/0 MTU 4470 bytes, BW 155520 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation HDLC, crc 16, loopback not set Keepalive not set Scramble disabled Last input never, output 15:46:02, output hang never Last clearing of "show interface" counters 15:46:22 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec

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(display text omitted)

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POS5/1 is up, line protocol is up Hardware is Packet over Sonet Internet address is 10.0.0.0/0 MTU 4470 bytes, BW 155520 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation HDLC, crc 16, loopback not set Keepalive not set Scramble disabled Last input never, output never, output hang never Last clearing of "show interface" counters 15:46:23 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec

(display text omitted)

POS5/2 is administratively down, line protocol is down Hardware is Packet over Sonet MTU 4470 bytes, BW 155520 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation HDLC, crc 16, loopback not set Keepalive set (10 sec) Scramble disabled Last input never, output never, output hang never Last clearing of "show interface" counters 15:46:39 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max)

Functional Overview

MAC Address

(display text omitted)

POS5/3 is administratively down, line protocol is down Hardware is Packet over Sonet MTU 4470 bytes, BW 155520 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation HDLC, crc 16, loopback not set Keepalive set (10 sec) Scramble disabled Last input never, output never, output hang never Last clearing of "show interface" counters 15:46:42 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue :0/40 (size/max)

(display text omitted)

For complete descriptions and instructions of the commands used to configure your Cisco 7304 router, refer to the Cisco IOS Configuration Fundamentals Configuration Guide and Cisco IOS Configuration Fundamentals Command Reference publications, which are available online, on the Documentation CD-ROM, and in print.

All LAN interfaces (ports) require unique MAC addresses, also known as hardware addresses. Typically, the MAC address of an interface is stored on a memory component that resides directly on the interface circuitry; however, the OIR feature requires a different method. (For a description of OIR, see the

“Online Insertion and Removal” section on page 3-6.)

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Functional Overview

Using OIR you can remove a line card and replace it with another identically configured one. If the new line card matches the line card you removed, the system immediately brings it online. In order to enable OIR, an address allocator with unique MAC addresses is stored in an EEPROM on the midplane. Each address is reserved for a specific port and slot in the router regardless of whether a line card resides in that slot. You can remove a line card and insert it into another router without causing the MAC addresses to move around the network or be assigned to multiple devices.

Note that if the MAC addresses were stored on each line card, OIR would not function because you could never replace one line card with an identical one; the MAC addresses would always be different. Also, each time a line card was replaced, other devices on the network would have to update their data structures with the new address. If the other devices did not update quickly enough, the same MAC address could appear in more than one device at the same time.

Note Storing the MAC addresses for every slot in one central location means the addresses stay with the

memory device on which they are stored.

Online Insertion and Removal

Chapter 3 Starting and Configuring

All line cards in the Cisco 7304 routers support online insertion and removal (OIR). The term “line cards” include line cards, PCI port adapters, SPAs, MSCs, and the inactive and redundant processing engine. This function allows you to install and replace line cards while the router is operating. This provides a method that is seamless to end users on the network, maintains all routing information, and preserves sessions.

You can remove line cards from the Cisco 7304 router without disrupting data flow by using the hw-module slot slot-number stop | start command. The hw-module slot slot-number stop command stops traffic, shuts down all line card interfaces, and deactivates the line card. The hw-module slot slot-number start command restarts the line card and shuts off the OIR LED, putting the card back online.

The following is a functional description of OIR for background information only; for specific procedures for installing and replacing a line card in a Cisco 7304 router, refer to the online configuration note for each line card, PCI port adapter, SPA, MSC, or (redundant) processing engine.

Each line card has a bus connector that connects it to the router. The connector has a set of tiered pins that send specific signals to the system as they make contact with the line card. The system assesses the signals it receives and the order in which it receives them to determine if a line card is being removed or inserted into the system. From these signals, the system determines whether to reinitialize a new interface or shut down a removed interface.

For example, when you insert a line card, the longest pins make contact with the line card first, and the shortest pins make contact last. The system recognizes the signals and the sequence in which it receives them.

When you remove or insert a line card in a Cisco 7304 router, the pins send signals to notify the system, which then performs as follows:

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1. Rapidly scans the system for configuration changes.

2. Initializes all newly inserted line cards, noting any removed interfaces.

3. Brings all previously configured interfaces on the line card back to the state they were in when they

were removed. Any newly inserted interface is put in the administratively shutdown state, as if it was present (but not configured) at boot time. If a similar line card type is reinserted into a slot, its ports are configured and brought online up to the port count of the original line card.

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Environmental Monitoring and Reporting Functions

Environmental monitoring and reporting functions are controlled by the processing engine and allow you to maintain normal system operation by identifying and resolving adverse conditions prior to loss of operation. The environmental monitoring functions constantly monitor the internal chassis air temperature and DC supply voltages and currents. Each power supply monitors its own voltage and temperature and shuts itself down if it detects a critical condition within the power supply. If conditions reach shutdown thresholds, the system shuts down to avoid equipment damage from excessive heat. The reporting functions periodically log the values of measured parameters so that you can retrieve them for analysis later, and the reporting functions display warnings on the console if any of the monitored parameters exceed defined thresholds.

Environmental Monitoring

The environmental monitoring functions use three sensors on the processing engine, one sensor on the CPU daughter board, and the sensors on the line cards to monitor the temperature of the cooling air as it moves through the chassis. The environmental monitoring functions also monitor power supply and fan failure events and online insertion and removal (OIR) events.

If the air temperature exceeds a defined threshold, the system controller displays warning messages on the console terminal, and if the temperature exceeds the shutdown threshold, the system controller shuts down the system. The system stores the present parameter measurements for both temperature and DC voltage in NVRAM so you can retrieve them later as a report of the last shutdown parameters.

In addition, the power supplies monitor internal power supply temperature and voltages. A power supply is either within tolerance (normal) or out of tolerance (critical). If an internal power supply temperature or voltage reaches a critical level, the power supply shuts down without any interaction with the system processor.

Functional Overview

The environmental monitoring functions use the following levels of status conditions to monitor the system:

• Normal—All monitored parameters are within normal tolerances.

• Warning—The system has exceeded a specified threshold. The system continues to operate, but

operator action is recommended to bring the system back to a normal state.

• Critical—An out-of-tolerance temperature or voltage condition exists. The system continues to

operate; however, the system is approaching shutdown. Immediate operator action is required.

• Shutdown—The processor has detected a temperature condition that could result in physical damage

to system components and has disabled DC power to all internal components. This condition requires immediate operator action. All DC power remains disabled until you toggle the power switch. Before any shutdown, the system logs the status of monitored parameters in NVRAM so you can retrieve it later to help determine the cause of the problem.

• Power supply shutdown—The power supply detected an internal out-of-tolerance overvoltage,

overcurrent, or temperature condition and shut itself down. All DC power remains disabled until you toggle the power switch.

Table 3-1 lists the typical temperature thresholds for the NSE-100, and Table 3-2 lists the DC power

thresholds for the normal, warning, and critical (power supply-monitored) levels.

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Table 3-1 Typical Processor-Monitored Temperature Thresholds

Parameter High Warning High Critical Shutdown

NSE-100

Chassis inlet 119°F (48°C) 145°F (63°C) 154°F (68°C)

Chassis outlet 1 119°F (48°C) 145°F (63°C) 154°F (68°C)

Chassis outlet 2 119°F (48°C) 145°F (63°C) 154°F (68°C)

Table 3-2 Typical Power Supply-Monitored DC-Voltage Thresholds

Parameter Low Critical Low Warning High Warning High Critical

+3.45V +3.26V +3.34V +3.55V +3.63V

+5.15V +4.86V +4.99V +5.31V +5.43V

+12.15V +11.39V +11.67V +12.62V +12.91V

–11.95V –9.52V –10.73V –13.16V –14.38V

Reporting Functions

The Cisco 7304 router displays warning messages on the console if chassis interface-monitored parameters exceed a desired threshold. You can also retrieve and display environmental status reports with the show environment, show environment all, show environment 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 around the sides of the chassis so that cooling air can flow through the chassis interior unimpeded and exhaust air exits the chassis and is not drawn into the inlet vent of another device.

The show environment command displays reports of the current environmental system status. The report displays parameters that are out of the normal values. No parameters are displayed if the system status is normal. The example that follows shows the display for a system in which all monitored parameters are within normal range:

Router# show environment NSE board: Line card slot 3: Line card slot 4: Line card slot 5: Voltage information: NSE board: Line card slot 3: Line card slot 4: Line card slot 5: All measured values are normal

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Router# show environment all Power Supplies:

Power supply 1 is AC power supply. Unit is on. Power supply 2 is empty.

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