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Chapter 4
Cisco's Diagnostic Commands
Protocol Debugging
There are two protocol classes that may be debugged: desktop, or routed,
protocols and routing protocols. There are several debug options for proto-
col information, and each protocol has its own associated debug options.
These options can be obtained by using the command line help on the router.
Table 4.13 shows a list of the protocol-related debug commands available.
ethernet-
interface
Ethernet network interface events
fastethernet
Fast Ethernet interface information
Serial
Serial interface information
Token
Token Ring information
Tunnel
Generic Tunnel Interface
T A B L E 4 . 1 3
Protocol-Related debug Commands
debug
Command
Description
Apple
AppleTalk information
Arp
IP ARP and HP Probe transactions
Atm
ATM Signaling
broadcast
MAC broadcast packets
Decent
DECnet information
Dlsw
Data Link Switching (DLSw) events
Eigrp
EIGRP Protocol information
T A B L E 4 . 1 2
Interface-Related debug Commands (continued)
debug
Command
Description
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