out its serial 0 interface, including the numbers of routes and metrics. First, just finding the
appropriate debug messages takes some effort. The needed routing debug message in Example
6-15 begins with the phrase "positing full update to 2012.ffff.ffff.ffff . . . ." Remembering that
Yosemite's S0 interface uses IPX network 2012 is a key to knowing to look for that message.
each successive line of debug output. More important is what is missing: Networks 1, 2, 1001,
and 2013 are left out of the update due to split horizon rules.
Furthermore, this task asks you to determine how many file servers appear to be in the SAP
table, what socket Bugs is using, and, assuming defaults for ticks on each router, whether it is
possible that more than one serial link exists in the route between Seville and Daffy. Two file
servers are listed in the SAP table: Bugs and Daffy. Both are using socket 451, as shown under
the word port in the SAP table. (The value is still called a socket; the heading is poorly labeled
in the show ipx servers command.) Daffy appears to be eight ticks away, and because a serial
link defaults to having six ticks, there could only be one serial link between Seville and Daffy.