P. 53	Fig 3-9:
	802.3 Frame:
	Split 8 Byte Preamble in two parts and add SOF field
		(replace the "8" by "7" and "1")
		+--------+-+---...
		|        |S|
		|Preamble|O| DA
		|        |F|
		|        | |
		|       7|1|   
		+--------+-+---...

	802.2 Frame: same as above and additionally
		Group DSAP SSAP CTRL field to LLC (Logical Link Control)
		...+----+----+----+...
		   |DSAP|SSAP|CTRL|
		   |   1|   1|   1|
		...+----+----+----+...
		   \_____________/
		      LLC fields

	SNAP  Frame: same as above (including LLC) and additionally
		- change size of OUI field from "1" to "3"
		- change size of Ether Type field from "1" to "2"

	Add the following explanation to the text below:
		SOF (Start-of-Frame) - The IEEE 802.3 delimiter byte
		ends with two consecutive '1' bits which serve to
		synchronize the frame-reception portions off all
		stations on the LAN. SOF is explicitely specified
		in Ethernet.

	Last paragraph 3rd sentence: replace "if 1518 bytes"
		with "of 1518 bytes"

P. 83:	Figure 4-10
	In the left cloud the rightmost router is missing the
	router name / label "B" (Is referenced as router B in the
	text)

P. 87:	After the first bullet: replace "propensity" with "probability"
	in sentence "Reflects the propensity of network links to fail..."

P. 92:	last sentence on page:
	RIP has a maximum hop count of "15" not "16" (16 is already
	unreachable).

P. 97:	under 3., 3rd sentence
	description of usage of holddown timers conflicts with page 95
	Here it says: "..and set their hold-down timers to SUPPRESS ANY
	ROUTE CHANGES FOR A SPECIFIC PERIOD OF TIME".
	I think this is not right.

	Page 95 explains it right: under 1. and 2. bullet
	"o If at any time before the hold-down timer expires an update
	   is received from the same neighbor indicating that the network
	   is again accessible, the router marks the network as accessible
	   and removed the hold-down timer."
	"o If an update arrives from a different neighboring router with
	   with a better metric than originally recorded for the network,
	   the router marks the network as accessible and removes the
	   hold-down timers".

	So I think the sentence on page 97 has to be re-thought.

P. 99:	Figure 4-22
	Adding interface names to the figure would make it more
	clear. Name the router interfaces from left to right:
	Router A: e0 s1 
	Router B: s1 s0 
	Router C: s1 e0

P. 100:	First paragraph under the 5 "bulleted" paragraphs
	substitute the "link-state" algorithm with the
	"Shortest Path First (SPF)" algorithm.

P. 115: In figure 5-3:
	- substitute "Flash" with "NVRAM"
	- Add an arrow with description "not reachable"
	  from box TFTP Server to box NVRAM
	- Add the description "reachable" beneath the arrow
	  between box "TFTP Server" and box "Load Config"

P. 128:	2nd paragraph under figure 5-13:
	substitute "terminal memory" with "router memory"

P. 143: Suggestion: instead of replacing 7000 and 7200 with "Some"
	as being told in the errata list one could perhaps
	be more specific, name popular access routers ?!
	2600 and 3600 ? 

P. 160: 3rd bulleted paragraph
	change the name of the system image file
		from "c2500-js-1.112-6.bin"
		to   "c2500-js-l.112-6.bin"
			       ^
P. 209: do I have something misunderstood ?
	"126 Class A networks" instead of "254 Class A addresses"
	"16.382 Class B networks" instead of "64.000 Class B addresses"

P. 212: Figure 9-4:
	Host must not have same ip address as router
	replace IP address of 1st left host "172.16.2.1"
	with "172.16.2.2"

P. 217:	Figure 9-9:
	Last bitmask (255): replace last bit "0" with "1"

P. 219: 1st paragraph:
	replace (25 = 32 - 2 = 30)
	with    (2^5 = 32 - 2 = 30)

P. 231: Questions 9.1-9.3
	already contain the answers ;-)

P. 238: Figure 10-3:
	in the box with the ip route command
	substitute "172.16.1.1.0"
	with       "172.16.1.0" 

P. 242:	2nd and 3rd bulleted listing:
	substitute "Internet Gateway Routing Protocol"
	with       "Interior Gateway Routing Protocol" (2x)

P. 265: Fig 11-1
	Figure doesn't reflect the text below:
	"SAP provides services for part of layer 3 and all services
	 from layer 4 through 7."
	Figure has to be corrected.

P. 289:	Paragraph "AppleTalk Protocol Stack"
	2nd paragraph:
	Local Talk over twisted-pair: correct speed
	change "230" to "230.4" kbps.

	Add a missing sentence about Interface and segment length
	at the end of this paragraph, like:
	"Interface is EIA/TIA-422. Segment Length: up to 300m,
	max. modes: 32".

P. 290:	Figure 12-1
	Figure is _completely_ wrong, major parts are missing
	[ See a corrected version in the attachement, GIF file ]

	Text below Fig 12-1 should be reviewed, i.e.:
	L 4 description is missing:
		- AURP (AppleTalk Update Based Protocol)
		- AEP (AppleTalk Echo Protocol)

	Last bulleted paragraph about ADSP belongs to Layer 5,
	not Layer 4.
	One thing about ADSP is perhaps missing, perhaps add:
	"Establishes and maintains full-duplex data streams between
	 two sockets".

P. 291: Last paragraph under "AppleTalk Features":
	1st sentence. RTMP is a Layer 4 protocol, so
	replace "Layer 3" with "Layer 4".

P. 306: Figure 12-13:
	   wrong figure (picture), take the one from 12-14
	Figure 12-14:
	   wrong figure (picture), so output of
	   "show appletalk globals" is missing completely.

P. 321: Figure 13-7:
	Example figure for "Using wildcard mask 0.0.15.255"
	is missing, instead Figure 13-6 has been repeated
	(from page 320).

P. 325: Last paragraph before Example 2:
	change command "no access-group"
	to             "no ip access-group"

P. 335: correct prompt, which has been incorrectly corrected
	by errata list:
	change "Router#>" to "Router#"

P. 350: example doesn't make sense:
	access-list 601 deny within cable-range 201-204
	access-list 601 permit within cable-range 204-205
	1. cable-range 204 will be permitted
	2. so second access-list entry, to allow 204 won't ever match
	Should be changed to:
	access-list 601 deny within cable-range 201-203
	access-list 601 permit within cable-range 204-205

P. 424: 3.1, FDDI interface:
	replace "Fo=FDDI" with "F=FDDI"

P. 429:	not sure but:
	13.1	"sh access-lists" instead of "show ip interface"