ibm Vlan UDSW Offset Type

1.3.6.1.4.1.2.5.8.4.3.2.1.4.1.1

This object specifies the base location in the traffic frame where the ibmVlanUDSWOffset will be used to start the comparison with the ibmVlanUDSWFilter value to determine if this frame is in a Sliding Window Vlan. Two starting location modes are predefined for LAN Emulation VLANs. udswMacOffset indicates that the starting location is the first byte of the MAC destination address in the traffic frame. This mode may be used for VLAN filtering on MAC addresses, for both Token Ring traffic and Ethernet traffic. The ibmVlanMacConfTable however should be used to define source MAC address based VLANs. This mode may also be used for VLAN filtering on protocol and address information or for other user specified information found in a portion of the LLC information field when source routed Token Ring traffic is NOT the traffic source (due to the presence of the variable size Routing Information Field). udswInfoOffset is a generic way of indicating that the starting location is at the first byte of the LLC information field. This mode may be used for VLAN filtering on protocol and address information or for other user specified information found in a portion of the LLC information field. For source routed Token Ring, this location is not static within the frame since the Routing Information Field (RIF) is of variable length depending on LAN segments in the route. Specifying this mode permits the offset to begin relative to the end of the last byte of the RIF. There is no default value for this entry. The offset type must be defined when creating a user defined sliding window VLAN in the ibmVlanConfTable.