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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