Command Reference Guide

Command Reference Guide (ISCLI) Command Reference Guide (ISCLI) 51
Layer 3 statistics
The following table describes basic Layer 3 statistics commands. The following sections provide more detailed
information and commands. Layer 3 functionality is limited in this release.
Table 44 Layer 3 Statistics commands
Command
Usage
show ip counters
Displays IP statistics.
Command mode: All except UserEXEC
clear ip counters
Clears IP statistics. Use this command with caution as it deletes
all the IP statistics.
Command mode: All except UserEXEC
show ip arp counters
Displays Address Resolution Protocol (ARP) statistics.
Command mode: All except UserEXEC
show ip dns counters
Displays Domain Name System (DNS) statistics.
Command mode: All except UserEXEC
show ip icmp counters
Displays ICMP statistics.
Command mode: All except UserEXEC
show ip tcp counters
Displays Transmission Control Protocol (TCP) statistics.
Command mode: All except UserEXEC
show ip udp counters
Displays User Datagram Protocol (UDP) statistics. Add the
argument, clear, to clear UDP statistics.
Command mode: All except UserEXEC
show ip igmp counters
Displays IGMP statistics.
Command mode: All except UserEXEC
clear ip igmp <1-4094> counters
Clears all IGMP statistics for the selected VLANs.
Command mode: All above Priv EXEC
show ip gea
Displays GEA statistics.
Command mode: All except UserEXEC
show layer3 counters
Displays all Layer 3 statistics.
Command mode: All
IP statistics
The following command displays IP statistics:
show ip counters
Command mode: All except User EXEC
IP statistics:
ipInReceives: 36475 ipInHdrErrors: 0
ipInAddrErrors: 905
ipInUnknownProtos: 0 ipInDiscards: 0
ipInDelivers: 4103 ipOutRequests: 30974
ipOutDiscards: 0
ipDefaultTTL: 255
The following table describes the IP statistics:
Table 45 IP statistics
Statistics
Description
ipInReceives
The total number of input datagrams received from interfaces, including those
received in error.
ipInHdrErrors
The number of input datagrams discarded due to errors in their IP headers, including
bad checksums, version number mismatch, other format errors, time-to-live exceeded,
errors discovered in processing their IP options, and so on.
ipInAddrErrors
The number of input datagrams discarded because the IP address in their IP header
destination field was not a valid address to be received at this switch. This count
includes invalid addresses (for example, 0.0.0.0) and addresses of unsupported
classes (for example, Class E).
For entities which are not IP gateways and therefore do not forward datagrams, this
counter includes datagrams discarded because the destination address was not a
local address.
ipInUnknownProtos
The number of locally addressed datagrams received successfully but discarded
because of an unknown or unsupported protocol.