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Chapter 4
Cisco's Diagnostic Commands
0 failures (0 no memory)
VeryBig buffers, 4520 bytes (total 10, permanent 10):
10 in free list (0 min, 100 max allowed)
34842 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Large buffers, 5024 bytes (total 0, permanent 0):
0 in free list (0 min, 10 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Huge buffers, 18024 bytes (total 0, permanent 0):
0 in free list (0 min, 4 max allowed)
0 hits, 0 misses, 0 trims, 0 created
0 failures (0 no memory)
Interface buffer pools:
Ethernet0 buffers, 1524 bytes (total 96, permanent 96):
29 in free list (0 min, 96 max allowed)
5474 hits, 1998 fallbacks
32 max cache size, 29 in cache
Ethernet1 buffers, 1524 bytes (total 96, permanent 96):
24 in free list (0 min, 96 max allowed)
154 hits, 265 fallbacks
32 max cache size, 32 in cache
Almost everything looks exactly the same, doesn't it? The only real difference
is at the end of the output. The Cisco 2514 displays the interface buffer pools;
the Cisco 7507 did not have that information. The Ethernet buffer pool size is
consistent with the values in Table 4.2. It is the same size used by the SP/SSP on
the Cisco 7000 series.
Troubleshooting Commands
N
ow we get into the heart of things. You might wonder, "Why did I
need to know all the previous information to pass the test?" The answer is
that you need to know how packets move across the router to be able to deci-
pher the information provided by the troubleshooting commands that are
explained in this section.
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