Monitoring Virtual Chassis Protocol Statistics
This topic describes how to monitor Virtual Chassis protocol statistics on a device. You can monitor Virtual Chassis protocol statistics for a Virtual Chassis node in any view.
This topic describes:
Procedure for Monitoring Virtual Chassis Protocol Statistics
- Click Monitor in the Network Director banner.
- Select a node in the View pane that contains the Virtual Chassis protocol traffic you want to monitor.
- Select the Traffic tab.
- In the Tasks pane, select View > VC Protocol
The Virtual Chassis Protocol Statistics window opens. For information about this window, click the Help button in the title bar of the window or see Virtual Chassis Protocol Statistics Window.
Virtual Chassis Protocol Statistics Window
The Virtual Chassis Protocol Statistics window displays information about the Virtual Chassis protocol statistics on the Virtual Chassis node you selected in the View pane. It contains these panes:
The top pane of the window lists the Virtual Chassis members and provides the information about each member that is described in Table 1.
Select a member’s table row to see information about that member in the other panes.
The middle and bottom panes provide the information described in Table 2.
Table 1: Virtual Chassis Protocol Statistics Window Top Pane
Virtual Chassis member’s ID.
Member’s Virtual Chassis role. Roles include Primary, Backup, and LinecCard.
Member’s FPC slot in the Virtual Chassis.
Member Serial Number
Member’s serial number.
Table 2: Virtual Chassis Protocol Statistics Window Middle and Bottom Panes
Field or Table Column
Member system name.
Number of purges that the system initiated. A purge is initiated if the software determines that a link-state PDU must be removed from the network.
Number of shortest-path-first (SPF) calculations that have been performed.
Link-state PDUs queue length
Number of link-state PDUs waiting in the queue for processing. This value is almost always 0.
Link-state PDU fragments computed
Number of link-state PDU fragments that the local system has computed.
Link-state PDUs regenerated
Number of link-state PDUs that have been regenerated. A link-state PDU is regenerated when it is nearing the end of its lifetime and it has not changed.
Protocol data unit type (PDU)
Protocol data unit type.
Number of PDUs received since VCCP started or since the statistics were set to zero.
Number of PDUs received minus the number of PDUs dropped.
Number of PDUs dropped.
Number of PDUs transmitted after VCCP started or after the statistics were set to zero.
Number of PDUs retransmitted after VCCP started or after the statistics were set to zero.