Rockwell Automation Publication 1783-UM003G-EN-P - December 2012 47
Switch Software Features Chapter 2
SNMP-NOTIFICATION-MIB (RFC2573)
SNMP-TARGET-MIB (RFC2573)
SNMP-VACM-MIB (SNMP-VIEW-BASED-ACM-MIB) (RFC2575)
SNMP-USM-MIB (SNMP-USER-BASED-SM-MIB) (RFC2574)
SNMPv2-MIB (RFC1907)
TCP-MIB (RFC2012)
UDP-MIB (RFC2013)
Port Mirroring
Port mirroring is for advanced users with experience in troubleshooting traffic
and protocol issues on networks.
The port mirroring feature copies (or mirrors) traffic on one port to a monitoring
port where the packet can be captured by a network protocol analyzer tool. Use
port mirroring as a diagnostic tool or debugging feature.
Port mirroring does not affect the switching of network traffic on the monitored
port. You must dedicate a monitoring port for port mirroring use. Except for
traffic that is being copied for the port mirroring session, the monitoring port
does not receive or forward traffic.
Port mirroring can be configured by assigning the Port Mirroring Smartports role
on a switch port by using the Device Manager Web interface (see Chapter 3,
Manage the Switch via the Device Manager Web Interface ).
Layer 3 Routing
(Stratix 8300 Switch Only)
The Stratix 83000 Ethernet Managed Switch uses IP address routing to map
subnetworks (subnets) to an individual VLAN. In some network environments,
VLANs are associated with individual networks or subnetworks. In an IP
network, each subnetwork is mapped to an individual VLAN. Configuring
VLANs helps control the size of the broadcast domain and keeps local traffic
local. However, network devices in different VLANs cannot communicate with
one another without a Layer 3 device to route traffic between the VLAN, referred
to as inter-VLAN routing. You configure one or more Layer 3 switches to route
traffic to the appropriate destination VLAN.
The following figure shows a basic routing topology.
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