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Chapter 4

Cisco's Diagnostic Commands

Now that the characters are defined, you can analyze the sample outputs.

In the first ping, all five packets received echo-reply messages, which indi-
cates that the host is reachable. Notice that the output gives a success
percentage based on the five requests that were sent. It also gives the mini-
mum, average, and maximum response times.

The second ping doesn't look so good. All five requests timed out. This

means that each request waited two seconds for a response. When no
response was received, a "." was echoed to the screen. It is possible that a
request was received, but it was after the two-second waiting period. Either
way, the host cannot be considered reachable.

IPX

The IPX ping uses functions within NLSP. It is important to note that the
ping ipx

command uses a Cisco proprietary Ping that actual Novell boxes

do not respond to--only Cisco routers respond to the Cisco proprietary
Ping. If you desire to ping a Novell box, you must configure the router to do
so. In global configuration mode, enter the following command:

Router_B(config)# ipx ping-default novell

Router_B(config)# ^Z

Router_B#

Look at the ping IPX response. Following the output, refer to Table 4.15

for the character map definitions.

Router_B#ping ipx DD72C718.0e00.0f4a.64fe

Type escape sequence to abort.

Sending 5, 100-byte IPX cisco Echoes to
DD72C718.0e00.0f4a.64fe, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max
= 8/8/8 ms

Router_B#

Router_B#ping ipx CD62F181.00f0.c044.18d4

Type escape sequence to abort.

Sending 5, 100-byte IPX cisco Echoes to
CD62F181.00f0.c044.18d4, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)

Router_B#

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