3Com OfficeConnect Remote 812 manual Icmp Counters, Input Counters, Output Counters

Models: OfficeConnect Remote 812

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ICMP COUNTERS

CLI Commands B-45

BR-ETH- CALL - Ethernet bridge call filter rules

IP - IP data filter rules

IP-CALL- IP call filter rules

￿IP-RIP- IP RIP advertisement filter rules

show icmp counters Shows the Input and Output Counters for ICMP. Two types of ICMP messages - error and query messages - are sent to syslog hosts.

ICMP COUNTERS

INPUT COUNTERS

Messages - ICMP packets received.

Errors - ICMP packets received with errors.

Destination Unreachable - sum of ICMP messages received when a router cannot forward a packet to its specified destination

Time Exceeded - sum of ICMP messages generated by a router when time has exceeded or a timeout has occurred while waiting for a packet segment

Parameter Problems - sum of ICMP messages generated by a router when it encounters an error

Source Quench - sum of ICMP messages informing a host it should slow data transmission to ease congestion

Redirects - sum of ICMP messages concerning a router advertising a host of a better next hop

Echos - sum of ICMP request messages received, signifying transport system success

Echo Replies - sum of ICMP reply messages received, indicating transport

￿system success

Timestamps - sum of ICMP request messages received seeking time from another machine for clock synchronization and estimated transit time purposes

Timestamp Replies - sum of ICMP timestamp reply messages Address Masks - sum of ICMP Address Mask Reply messages

￿Address Mask Replies - sum of ICMP request messages concerning a host’s ability to gather network information

OUTPUT COUNTERS

Messages - total of ICMP messages transmitted

Errors - ICMP packets transmitted with errors

Destination Unreachable - sum of these messages sent

Time Exceeded - sum of these messages sent

Parameter Problems - sum of these messages sent

Source Quench - sum of these messages sent

￿Redirects - sum of these messages sent

Page 147
Image 147
3Com OfficeConnect Remote 812 manual Icmp Counters, Input Counters, Output Counters