Display Field Descriptions

This section describes the Monitor's fields. Figure 7-2 shows a typical Monitor display with a non-PTT software kit.

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i,i.iI • • ,. • • • • i·tJ~

7.3.3.1 Ethernet Router and End Node Field - This field records the number of Ethernet routers and end nodes currently adjacent to the DEC router 200, that is, con-nected to the same Ethernet segment as the DECrouter 200 and in the same area. The field does not count those adjacent nodes connected to the asynchronous ports. Use this field to help determine the proper values for the MAXIMUM BROADCAST ROUTERS, MAXIMUM BROADCAST NONROUTERS, and MAXIMUM ADDRESS parameters defined in the DECrouter 200's permanent database.

If the number of routers or end nodes shown in this field is zero, communication between the router and the Ethernet has failed. See Section 8.2 for troubleshooting hints.

7.3.3.2 OECrouter 200 Version Field - This field records the software and hard-ware version of the DEC router 200. Use this field to verify that the expected softhard-ware version of the DECrouter 200 is loaded.

7.3.3.3 The Up-Time Field - The upper-right corner of the display indicates the amount of time elapsed since the DECrouter 200 was last booted (loaded). The first three digits are the number of days, the next six digits indicate the number of hours, minutes, and seconds since last loaded.

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Use this field to verify that the DECrouter 200 is running. If the time is not updating, the DEC router 200 has stopped running, and you should reload it.

7.3.3.4 The Available Buffers Field - This field shows the current number of avail-able large and small buffers in the DECrouter 200 system as well as the lowest number available for each size since the system was loaded or the field reset. This lets you see whether enough buffers are being allocated. (You can reset the lowest number of available buffers by typing "R" at the Monitor terminal.)

This field is used primarily by software specialists.

7 .3.3.5 The Packets-per-Second Field - This field reports the current and highest throughput recorded for the DECrouter 200. The current value shows the current num-ber of packets processed per second, including packets the DECrouter 200 is forward-ing and packets targeted for the DEC router 200 itself (such as routforward-ing update messages).

This field also displays the highest number of packets per second recorded since the system was loaded or the field was reset.

Use this field to verify that the DEC router 200 is performing as expected. Expected performance levels are given in the DECrouter 200 Software Product Description.

7.3.3.6 The Idle CPU Field - This field reports the percentage of CPU available.

A graphic display consisting of a series of diamonds also represents the current availa-ble CPU. Each diamond equals 2.5 %. The maximum amount of available CPU (100 %) is 40 diamonds.

This field also displays the lowest amount of available CPU since the system was loaded or the field reset.

Use this field to determine the activity level on the DECrouter 200. If the percentage of idle time is low, then the DECrouter 200 is very busy. This field is used primarily by software 'Specialists.

7.3.3.7 The Local/Host Node Field - This field displays the DECnet node name and node address of the DECrouter 200 (top line in the field) and the node that down-line loaded the DECrouter 200 (bottom down-line). Use this field to verify the node address of the DECrouter 200, the area number, and the load host. If the load host is not as expected, check that the node database on the expected load host is correct. Refer to Section 8.1.1.4 for troubleshooting hints.

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7.3.3.8 The Circuit Status and Characteristics Field - The bottom section of the display shows information about the asynchronous circuits (ports J 1 to J8) and the Ethernet circuit. There are seven possible fields of information:

• Circuit: Identifies the circuit.

• State: Shows the status of the circuit. For the asynchronous circuits, the status can be OFF, ON, START (the circuit supports a non-modem INCOMING line and is in starting state), MSTART (the circuit supports a modem line and is in on-starting state), or BROKEN (the hardware self-test at boot found the port faulty).

For ASYNC-l, the status can also be Monitor.

For the Ethernet circuit, the status can be On or Off.

• Adjacency: For the asynchronous circuits, identifies the node that is directly connected; for the Ethernet, identifies the current designated router in the same area as the DECrouter 200 and on the same Ethernet. DECnet node names are also displayed if they have been defined in the router's database.

Make sure the node addresses of the adjacent nodes are correct. The area numbers should all be the same as that of the DECrouter 200. Because the DECrouter 200 is a level 1 router, it cannot communicate directly with a node in another area.

Therefore, this field can help you determine if a communication problem with one or more adjacent nodes is due to incorrect node addresses.

• Type: Identifies the type of node connected to the circuit. Valid types for this field are END, Ll (for a level 1 routing node), L2 (for a level 2 routing node), E3 (for a Phase III end node), and R3 (for a Phase III routing node).

• Speed: Shows the speed setting for the line.

• Modem: Shows whether the line is connected by a modem and, if dial-back, the kind of modem. If the line is hard-wired, NO is displayed. If a dial-back modem is connected, the type specified with the MODEM line parameter is displayed. If the line does not support dial-back, but has a modem, YES is displayed.

• Line utilization: Shows the percentage of the maximum available line bandwidth being consumed. The maximum bandwidth is based on the line speed. The per-centage of bandwidth consumed is based on full-duplex traffic (the amount of trans-mitted and received packets). Each diamond displayed equals 5 %.

On the Ethernet, the maximum available bandwidth is based on a maximum of 1 Mbps. This maximum helps keep a reasonable scale.

Use this field to determine how busy each line is. If a line is extremely busy, you may have to increase the line's speed.

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