Administering And Monitoring The Vmps; Troubleshooting Dynamic Port Vlan Membership; Dynamic Port Vlan Membership Configuration Example - Cisco WS-C3550-12G Software Configuration Manual
Multilayer switch
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Understanding VMPS
Administering and Monitoring the VMPS
You can display information about the VMPS by using the show vmps privileged EXEC command. The
switch displays this information about the VMPS:
VMPS VQP Version The version of VQP used to communicate with the VMPS. The switch queries
Reconfirm Interval
Server Retry Count
VMPS domain server The IP address of the configured VLAN membership policy servers. The switch
VMPS Action
Troubleshooting Dynamic Port VLAN Membership
The VMPS shuts down a dynamic port under these conditions:
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To re-enable a disabled dynamic port, enter the no shutdown interface configuration command.
Dynamic Port VLAN Membership Configuration Example
Figure 9-7
In this example, these assumptions apply:
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Catalyst 3550 Multilayer Switch Software Configuration Guide
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the VMPS that is using VQP version 1.
The number of minutes the switch waits before reconfirming the
VLAN-to-MAC-address assignments.
The number of times VQP resends a query to the VMPS. If no response is
received after this many tries, the switch starts to query the secondary VMPS.
sends queries to the one marked current. The one marked primary is the primary
server.
The result of the most recent reconfirmation attempt. A reconfirmation attempt
can occur automatically when the reconfirmation interval expired, or you can
force it by entering the vmps reconfirm privileged EXEC command or its CMS
or SNMP equivalent.
The VMPS is in secure mode, and it does not allow the host to connect to the port. The VMPS shuts
down the port to prevent the host from connecting to the network.
More than 20 active hosts reside on a dynamic port.
shows a network with a VMPS server switch and VMPS client switches with dynamic ports.
The VMPS server and the VMPS client are separate switches.
The Catalyst 6000 series Switch 1 is the primary VMPS server.
The Catalyst 6000 series Switch 3 and Switch 10 are secondary VMPS servers.
End stations are connected to the Catalyst 3550 clients, Switch 2 and Switch 9.
The database configuration file is stored on the TFTP server with the IP address 172.20.22.7.
Chapter 9
Creating and Maintaining VLANs
78-11194-03
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Troubleshooting
