Internet Routing Architectures, Second Edition s1
Building Scalable Cisco Networks
ISBN: 1-57870-228-3
Cisco Press
Errata
7th Printing
Page 104 – The third sentence at the top of the page should read, “The MAC address used for 224.0.0.5 is
01005E 000005, and the MAC address for 244.0.0.6 is 01005E 000006.”
Page 109 – The first sentence of ‘Step 3’ should read, “All routers that received the packet send a multicast
reply hello packet to Router A with their corresponding information, as listed in Step 1.”
Page 148 – Regarding Table 3-8, add the following to the end of the ‘Command’ and ‘Description’
columns respectively:
frame-relay switching Enables frame-relay switching on the router.
frame-relay intf-type Defines the frame-relay interface type (dce or dte)
on an interface
frame-relay route Defines a static frame-relay route on an interface,
for switching frames between DLCIs.
The 8th row under the ‘Command’ column should read:
show ip ospf interface (use lower-case ‘i’)
Page 159 – The second sentence of the fourth paragraph should read, “Point-to-point interfaces generate
two links in the OSPF database.”
Page 179 – The last sentence on the page should read, “Type 6 LSAs do not appear in Table 4-1 because
they are not supported by Cisco Routers.”
Page 183 – Regarding Example 4-3 and 4-4 – Change the ‘0 IA’s to ‘O IA’s (Changing the zeros to the
capital letter O).
Page 222 – Regarding Step 5, Change the ‘0’s to ‘O’s and the ‘0 E2’ to ‘O E2’s. (The zeros should be
changed to Capital Os).
Page 253 – The first sentence of the third paragraph should read, “The rate at which hello packets are sent,
called the hello interval, can be adjusted per interface with the ip hello-interval eigrp
command.”
The last sentence of the third paragraph should read, “The hold time can also be adjusted with
the ip hold-time eigrp command.”
Page 298 – Regarding Step 2, the first command of the configuration should read:
p1r1(config)#router eigrp 200
Page 714 – The third row of the table under the heading ‘Protocol’ should read: IGRP, EIGRP, OSPF
4th Printing
Page 128 – The first sentence of the second paragraph under the heading ‘Cost Modification’ should read,
“As mentioned earlier, the OSPF metric is calculated as reference bandwidth divided by
bandwidth, with the reference bandwidth equal to 100 Mbps or, if you prefer, 108 bps.”
1st Printing
Page 17 – Regarding Figure 1-5, The table under ‘Router A’ should read:
Routing table
10.1.0.0
10.2.0.0
172.16.0.0