DIGITAL GIGAswitch/Router User Reference Manual
275
Chapter 20
Performance
Monitoring Guide
Performance Monitoring Overview
The GSR is a full wire-speed layer-2, 3 and 4 switching router. As packets enter the GSR,
layer-2, 3, and 4 flow tables are populated on each line card. The flow tables contain
information on performance statistics and traffic forwarding. Thus the GSR provides the
capability to monitor performance at Layer 2, 3, and 4. Layer-2 performance information
is accessible to SNMP through MIB-II and can be displayed by using the
l2-tables
command in the CLI. Layer-3 and 4 performance statistics are accessible to SNMP through
RMON/RMON2 and can be displayed by using the
statistics show
command in the CLI.
In addition to the monitoring commands listed, you can find more monitoring commands
listed in each chapter of the
DIGITAL GIGAswitch/Router Command Line Interface Reference
Manual
.
To access statistics on the GSR, enter the following commands in Enable mode:
Show DVMRP routes.
dvmrp show routes
Show all TCP/UDP connections
and services.
ip show connections
Show all IP routes.
ip show routes
Show all IPX routes.
ipx show tables routing
Show all MAC addresses currently
in the L2 tables.
l2-tables show all-macs
Show info about MACs residing in
a port's L2 table.
l2-tables show port-macs
<port-list>
