Reference Guide

Primary, C-Community, I-Isolated
Q: A-Access (Untagged), T-Tagged
x-Dot1x untagged, X-Dot1x tagged
G-GVRP tagged, M-Vlan-stack, H-VSN tagged
i-Internal untagged, I-Internal tagged, v-VLT untagged, V-VLT tagged
NUM Status Description Q Ports
* 1 up A Eth1/1/2-1/1/32
A Po40
200 up T Eth1/1/3:2
T Po40
A Eth1/1/31
320 up T Eth1/1/25:4 1/1/32
T Po40
A Eth1/1/3:1
Supported Releases 10.2.0E or later
Port monitoring
Port monitoring enables monitoring of ingress or egress trac of one port to another for analysis. A monitoring port (MG) or destination
port, is the port where the monitored trac is sent for analysis. A monitored port (MD) is the source interface which is monitored for trac
analysis, also called source port.
Depending on the location of the destination interface, port monitoring is performed as follows:
• Local port monitoring — The port monitoring is performed in the same switch. The switch forwards a copy of incoming and outgoing
trac from one port to another port for further analysis.
• Remote port monitoring (RPM/RSPAN) — The port monitoring is performed on trac running across a remote device in the same
network. The monitored trac is carried over the L2 network.
• Encapsulated remote port monitoring (ERPM) — The port monitoring is performed on an L3 network. The trac from the source
port is encapsulated and forwarded to the destination port in another switch.
Local port monitoring
The local port monitoring monitors trac from one or more ports from the switch to one or more ports on the same switch. For local port
monitoring, the monitored source and monitoring destination ports are on the same device.
Congure local monitoring session
1 Verify that the intended monitoring port has no conguration other than no shutdown and no switchport.
show running-configuration
2 Create a monitoring session in CONFIGURATION mode.
monitor session session-id [local]
3 Enter the source and direction of monitored trac in MONITOR-SESSION mode.
source interface interface-type {both | rx | tx}
4 Enter the destination of trac in MONITOR-SESSION mode.
destination interface interface-type
Create monitoring session
OS10(config)# monitor session 1
OS10(conf-mon-local-1)#
240
Layer 2