Errata

Local_Pref (well-known, mandatory)

NOW READS:
Local_Pref (well-known, discretionary)

replace the paragraph completely with the following text:

=============
In the example above, access-list number 55 simply matches all packets with
IP Precedence values of 5. You can also use a precedence bit mask to match
several values in an 8-bit Precedence field that Cisco invented specially
for this task. In this field, Precedence value 0 is represented by the
binary number 00000001, 1 is represented as 00000010 and so forth up to IP
Precedence value 7, which is 10000000. The mask is found by adding these
binary values for each of the Precedence values you wish to include. For
example, to match Precedence values 0, 1 and 2, you could use a mask of
00000111, which is 0x07 in hex.

Router(config)#access-list rate-limit 56 mask 07
=============

Also, just about every instance of "access-list" in this recipe (11.12) is incorrectly written without the
hyphen, as "access list".

"reaches 50%," NOW READS "reaches ~20% (50/255 link utilization),"

The command "show lines" NOW READS "show line"

"We have also included two watch lists, one for each of the watched IP
addresses."
should be changed to:
"We have also included two dialer watch-list commands, one for each of
the watched IP addresses."

"In this case, you can calculate that this spread is roughly 14 milliseconds.
This means that half of the time, the round trip latency is within the range
61+/-14ms."

NOW READS:

"In this case, you can calculate that this spread is roughly 10 milliseconds.
This means that half of the time, the round trip latency is within the range
61+/-10ms."