Chapter 6 Configuring the System
Configuring SNMP
6-20
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
78-6511-05
Catalyst 1900 and Catalyst 2820 switches support up to four trap managers. When
you configure community strings for these switches, limit the string length to
32 characters. When configuring traps on these switches, you cannot configure
individual trap managers to receive specific traps.
Table 6-3 describes the Catalyst 1900 and Catalyst 2820 switch traps. You can
enable any or all of these traps, but these traps are received by all configured trap
managers.
Table 6-3 Catalyst 1900 and Catalyst 2820 Switch Traps
Trap Type Description
Address-violation Generates a trap when the address violation threshold is exceeded.
Authentication Generates a trap when an SNMP request is not accompanied by a valid community
string.
BSC Generates a trap when the broadcast threshold is exceeded.
Link-up-down Generates a link-down trap when a port is suspended or disabled for any of these
reasons:
• Secure address violation (address mismatch or duplication)
• Network connection error (loss of linkbeat or jabber error)
• User disabling the port
Generates a link-up trap when a port is enabled for any of these reasons:
• Presence of linkbeat
• Management intervention
• Recovery from an address violation or any other error
• STP action
VTP Generates a trap when VTP changes occur.
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