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 rulesshow 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 COUNTERSINPUT COUNTERS Messages - ICMP packets received. Errors - ICMP packets received with errors. Destination Unreachable - sum of ICMP messages received when a routercannot forward a packet to its specified destination Time Exceeded - sum of ICMP messages generated by a router when timehas exceeded or a timeout has occurred while waiting for a packet segment Parameter Problems - sum of ICMP messages generated by a routerwhen it encounters an error Source Quench - sum of ICMP messages informing a host it should slowdata transmission to ease congestion Redirects - sum of ICMP messages concerning a router advertising a hostof a better next hop Echos - sum of ICMP request messages received, signifying transportsystem success Echo Replies - sum of ICMP reply messages received, indicating transportsystem success Timestamps - sum of ICMP request messages received seeking time fromanother machine for clock synchronization and estimated transit timepurposes 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 ahost’s ability to gather network informationOUTPUT 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
