// Copyright (c) 2005 DMTF. All rights reserved. // Add UmlPackagePath // qualifier values to CIM Schema. // ================================================================== // CIM_VLAN // ================================================================== [Deprecated { "No Value" }, Version ( "2.8.0" ), UMLPackagePath ( "CIM::Network::VLAN" ), Description ( "An instance of VLAN represents a VLAN within a switch. In a " "particular switch, there should be an instance of VLAN for " "every VLAN available. For example, in a switch with port-based " "VLANs, if there are 16 VLANs to which ports can be assigned " "(VLAN 1 through VLAN 16), there should be an instance of " "CIM_VLAN for each of VLAN 1 through VLAN 16. \n" "\n" "VLAN inherits Name from ServiceAccessPoint. Use this for the " "textual name of the VLAN, if there is one. Otherwise, " "synthesize a textual name, e.g., VLAN 0003. (Consider leading " "zero fill, as shown, to ensure that if the textual VLAN names " "are extracted and presented by a management applictions, the " "VLAN names will sort in the expected order.) The numeric part " "of the name should be at least four digits wide since 802.1Q " "specifies 4095 VLANs. \n" "\n" "It is intended that VLAN be subclassed only if necessary to " "add attributes. The type of the VLAN can be inferred from the " "VLANService(s) with which the VLAN is associated in the " "VLANFor association. \n" "\n" "An instance of VLAN may be associated with more than one " "VLANService. For example, there are switches that support both " "802.1Q VLANs and the vendor\'s proprietary VLANs. In some such " "switches, if a broadcast packet is received on a port in an " "802.1Q VLAN (VLAN 5, for example), it may be be transmitted " "from a port in a \'proprietary\' VLAN 5. In effect, there is " "only one VLAN 5, and the type of port only determines the " "packet format for tagged packets. In the case just described, " "only one instance of CIM_VLAN should be instantiated for VLAN " "5, and it should be associated both with the 802.1Q " "VLANService and the proprietary VLANService. \n" "\n" "In typical VLAN-aware switches, packets can be assigned to a " "VLAN based on the port on which they are received (port-based " "VLANS), based on the source MAC address (MAC-based VLANs), or " "based on the value of a set of bits in the packet " "(protocol-based VLANs). If it is desirable to represent the " "VLAN assignment predicate for some MAC-based VLAN switch, it " "will be necessary to subclass VLAN. The list of MAC addresses " "associated with a VLAN might be an attribute of the subclass. " "If it is desirable to represent the VLAN assignment predicate " "in a protocol-based VLAN switch, it will also be necessary to " "subclass VLAN, InboundVLAN, or both. If the predicate applies " "to all ports in the switch, then only VLAN need be " "used/instantiated. If the predicate may vary based on the " "port, then InboundVLAN must be subclassed, and CIM_VLAN might " "have to be subclassed as well." )] class CIM_VLAN : CIM_ServiceAccessPoint { [Deprecated { "No Value" }, Description ( "VLAN identifying number." )] uint16 VLANNumber; };