Cisco 3005 - VPN Concentrator - Gateway Especificaciones Pagina 232

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15-66
VPN 3000 Series Concentrator Reference Volume II: Administration and Monitoring
78-13274-01
Chapter 15 Statistics
Monitoring | Statistics | MIB-II | ICMP
Errors Received / Transmitted
The number of ICMP messages that the VPN Concentrator received but determined to have
ICMP-specific errors (bad ICMP checksums, bad length, etc.).
The number of ICMP messages that the VPN Concentrator did not send due to problems within ICMP
such as a lack of buffers.
Destination Unreachable Received / Transmitted
The number of ICMP Destination Unreachable messages received / sent. Destination Unreachable
messages apply to many network situations, including inability to determine a route, an unusable source
route specified, and the Don’t Fragment flag set for a packet that must be fragmented.
Time Exceeded Received / Transmitted
The number of ICMP Time Exceeded messages received / sent. Time Exceeded messages indicate that
the lifetime of the packet has expired, or that a router cannot reassemble a packet within a time limit.
Parameter Problems Received / Transmitted
The number of ICMP Parameter Problem messages received / sent. Parameter Problem messages
indicate a syntactic or semantic error in an IP header.
Source Quench Received / Transmitted
The number of ICMP Source Quench messages received / sent. Source Quench messages provide
rudimentary flow control; they request a reduction in the rate of sending traffic on the network.
Redirects Received / Transmitted
The number of ICMP Redirect messages received / sent. Redirect messages advise that there is a better
route to a particular destination.
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