Monitoring Traffic on Layer 3 VLANs
This topic describes how to monitor Layer 3 VLAN traffic statistics on a device. You can monitor Layer 3 VLAN statistics for a switch or Virtual Chassis node in any view.
This topic describes:
Procedure for Monitoring Layer 3 VLAN Traffic Statistics
- Click Monitor in the Network Director banner.
- Select a node in the View pane that contains the Layer 3 VLAN traffic you want to monitor.
- Select the Traffic tab.
- In the Tasks pane, select View > L3 VLAN
Statistics.
The L3 VLAN Traffic Stats window opens. For information about this window, click the Help button in the title bar of the window or see L3 VLAN Traffic Stats Window.
L3 VLAN Traffic Stats Window
The L3 VLAN Traffic Stats window displays information about the Layer 3 VLAN traffic on the node you selected in the View pane. It contains two panes:
- VLAN Traffic line graph—This graph shows the data
transmission rate on the Layer 3 VLAN selected in the table below.
The horizontal axis shows the times when samples were taken. The vertical
axis shows the data rate, in bytes per second.
To show a Layer 3 VLAN on the VLAN Traffic line graph, select the Layer 3 VLAN from the table below. To highlight a line on the graph, mouse over the line legend. To remove or restore a line, click the line legend. To see numeric values, mouse over where a data line intersects with a dotted vertical grid line.
- Layer 3 VLAN traffic statistics table—This table provides information about the Layer 3 VLANs as described in Table 1. Selecting a Layer 3 VLAN from this table updates the VLAN Traffic graph to display the traffic information for the selected Layer 3 VLAN.
Table 1: Layer 3 VLAN Traffic Statistics Table
Table Column | Description |
|---|---|
L3 Interface | Layer 3 interface assigned to the VLAN. |
VLAN Name | VLAN name. |
VLAN ID | VLAN ID. |
Description | VLAN description. |
In Packet | Number of packets entering the VLAN. |
Out Packet | Number of packets leaving the VLAN. |

