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Cisco ICS 7750 Administration and Troubleshooting Guide
78-10169-02 Rev. B0
Chapter 2 Monitoring the System
SNMP Basics
Cisco ICS 7750 Traps
Cisco ICS 7750 ASI cards, MRP cards, and the SSP card can generate traps such
as the following:
• coldStart—Indicates power-up reset of a card.
• warmStart—Indicates that software running on a card has been upgraded or
that the card has been reset.
• linkDown—Indicates that a port changed to a suspended or disabled state due
to a secure address violation (mismatch or duplication), network connection
error (such as a loss of Link Beat or a jabber error), oran explicit management
disable action.
• linkUp—Indicates that a port has changed from a suspended or disabled state
to the enabled state.
• authenticationFailure—Indicates that an SNMP message has been received
that is not properly authenticated; that is, the message is not accompanied by
a valid community string.
• addressViolation—Indicates that an address violation has been detected on a
secured port.
• broadcastStorm—Indicates that the number of broadcast packets received in
a second from a port is higher than the broadcast threshold.
Understanding Community Strings
SNMP community strings authenticate access to MIB objects and function as
embedded passwords.
The Cisco ICS 7750 uses a base community string, to which the string
@SLOTnumber can be appended to form a composite community string:
base community string
@SLOT
number
where
• Base community string represents the get or set community string. For get
(read-only) requests, the community string, or password, has a default ASCII
value of public. For set (read-write) requests, the community string has a
default value of changeme.