Cabletron Systems SmartSTACK ELS10-27TX Supplement Manual

Contents

3-2Configuring VLANs Using SNMP3.2.1 Modifying, Creating and Deleting VLANsVLAN information that is being modified, created or deleted will remain in localvariables until the status variable is set. At that time, the local variables will beprocessed, the Global VLAN Table will be updated and the hardwareconfiguration modified.To Create, Delete or Modify local variables, proceed as follows:3.2.1.1 Modifying a VLANIf a VLAN is created or deleted, the following checks are completed. In addition,other checks will be done if specifying create or delete using the VLANcommand. For a list of additional checks performed when creating or deleting aVLAN, refer to the sections titled Creating a VLAN or Deleting a VLAN.• Verify that the “Establish” variable is set to either Create or Delete. If neitheris selected the command is aborted.• Determine if the VLAN ID is valid. If not, the command is aborted.• Determine if an IP address was entered; a check is made to determine that thesubnet is unique. If not, the command is aborted.• Determine if the index is checked to ensure it is within the range of 0 - 31. Ifnot, the command is aborted.• Determine if the VLAN ID of the table entry pointed to by index is either zerofor a new entry, or equal to the local VLAN ID for a modify. If the entry is notzero or does not match the local variable, the command is aborted.Step Action1 Set the Config Table index to a value outside of the tablerange (range is 0 through 31). When a variable is now read orwritten it will reference the local variables.2 Set all of the local variables desired.3 Set the Establish variable to Create or Delete as desired.4 Set the index to the table entry you want to impact. (A read ofall VLAN table entries should be completed first to establishwhich are in use, and which VLAN is contained in each tableentry. A VLAN ID of zero indicates this table entry is unused.)5 Perform any write to the status variable. This will process thecommand using the local variables.