Cabletron Systems Ethernet Hubs manual Snmp Icmp Group View

Application View Description

SNMP ICMP Group View

Msgs with no Ports

The total number of received UDP datagrams for which there was no application at the destination port.

SNMP ICMP Group View

You can access the SNMP ICMP Group View by clicking on the ICMP button in the Application View. The SNMP ICMP Group View displays the following information for the hub:

Messages

Displays the total number of ICMP messages that the hub received or attempted to transmit, including messages containing errors.

Errors

Displays the total number of ICMP messages that the hub received containing errors or did not transmit because of errors.

Dest. Unreachable

Displays the total number of ICMP Destination Unreachable messages received or transmitted by the hub. This indicates that a network or host was unreachable, a protocol was not running, or IP datagram fragmentation was necessary but disallowed because the Don’t Fragment flag was set.

Time Exceeds

Displays the total number of ICMP Time Exceeded messages received or transmitted by the hub. This indicates that an IP datagram was discarded because its TTL had expired or it was in the reassembly queue for too long.

Parameter Problems

Displays the total number of ICMP parameter problem messages received or transmitted by the hub. This indicates an error in an IP datagram’s header.

Src Quench Msgs

Displays the total number of ICMP Source Quench messages received or transmitted by the hub. This indicates that a network device is discarding IP datagrams due to a lack of buffer space.

Redirects

Displays the total number of ICMP Redirect messages received by the hub if it is operating as a host. ICMP redirects are transmitted to the host by a gateway informing the host of another gateway on the same IP network that is closer to the desired transmission destination.

More ICMP Stats...

This button allows you to access an additional SNMP ICMP Group View.

Table 3-1provides the information displayed by the second SNMP ICMP

Group View.

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