360CHAPTER 14: VIRTUAL LANS (VLANS)

bridge vlan modify (3900/9300/9400/ 9000 Layer 2)

3500

9000

9400

3900

9300

Changes a port-based VLAN definition on the indicated system Layer 2 module. See “Important Considerations” for information on when changes take effect.

To use this command on the CoreBuilder 3500 or CoreBuilder 9000 Layer 3 modules, see the “bridge vlan modify (3500/9000 Layer 3)” earlier in this chapter.

Valid Minimum Abbreviation

b v modi

Important Considerations

You need not reboot the system for the changes to take effect. However, depending on the number of VLANs that are affected, the system may take several minutes to return control to you.

If you modify the tagging type of a backplane port on a switching module, make sure that you modify the tagging type of the corresponding port on the switch fabric module.

If tagging is enabled for a port, the software uses the VID as the 802.1Q tag.

If you modify the default VLAN, you can only change the member ports or the tag status. You cannot change the name or the VID.

If you modify the tagging for a port shared by another VLAN, verify that the new tag type does not conflict with the port’s tag type in another VLAN. (A shared port can use a tag type of none for only one of its VLANs; for all other VLANs to which it belongs, the shared port must use IEEE 802.1Q tagging.)

Options

Prompt

Description

Possible Values

[Default]

 

 

 

 

 

VLAN

System-assigned index number that

Selectable VLAN

1 (if you

interface

identifies a VLAN

 

index

have only

index

 

all

the default

 

 

VLAN)

 

 

 

 

? (for a list of selectable indexes)

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3Com 3500 manual Bridge vlan modify 3900/9300/9400/ 9000 Layer, Valid Minimum Abbreviation