RTS DV-3400 Informações Técnicas descarregar pdf (Página 334)

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Port Traffic Controls

All-Traffic Rate-Limiting for the 5300xl, 3400cl and 6400cl Switches

Ports B2-B5 are configured

with an ICMP rate limit of 1%.

The show config status

command compares the

content of the startup-config

and running-config files and

prints a report.

Figure 14-5. Example of ICMP Rate-Limit Settings Listed in the “show running” Output

ICMP Rate-Limiting Trap and Event Log Messages. If the switch

detects a volume of inbound ICMP traffic on a port that exceeds the ICMP

rate-limit configured for that port, it generates one SNMP trap and one

informational Event Log message to notify the system operator of the condi-

tion. (The trap and Event Log message are sent within two minutes of the when

the event occurred on the port.) For example:

I 06/30/05 11:15:42 RateLim: ICMP traffic exceeded

configured limit on port 1

These trap and Event Log messages provide an advisory that inbound ICMP

traffic on a given interface has exceeded the configured maximum. The

additional ICMP traffic is dropped, but the excess condition may indicate an

infected host (or other traffic threat or network problem) on that interface.

The system operator should investigate the attached devices or network

conditions further.

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