3Com 3C17203 - SuperStack 3 Switch 4400, Руководство по внедрению

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82 C
HAPTER
7: S
TATUS
M
ONITORING AND
S
TATISTICS
The Audit Log The Switch keeps an audit log of all management user sessions, providing
a record of a variety of changes, including ones relating to RMON. The
log can only be read by users at the
security access level using an SNMP
Network Management application.
Each entry in the log contains information in the following order:
■
Entry number
■
Timestamp
■
User ID
■
Item ID (including qualifier)
■
New value of item
The last 16 operations are stored in the audit log. The oldest records are
overwritten first.
Email Notification of
Events
Your Switch allows you to receive email notification when certain RMON
events occur. You can receive notification via email, SMS (Short Message
Service), or pager, of the event that has occurred.
This feature uses an SMTP (Simple Mail Transfer Protocol) email client to
send the notification email. The Short Message Service (SMS) and pager
messages are constrained on message size so they are sent to a different
email address which creates the message to be displayed and then
forwards it on to the SMS or pager gateway.
Table 12 Values for the default alarm
Statistic High Threshold
Low Threshold
Recovery
Period
Number of errors
over 10 seconds Value: 8 errors per 10
seconds
Action: Smart
auto-sensing will reduce
port speed
Value: 8 errors per 10
seconds
Action: None. (Speed can
only be increased upon
link loss, for example by
removing and replacing
the cable, or by triggering
the port to perform
another auto-negotiation
on that link.)
10 secs