Enterasys G3G170-24 - Set Vlan Dynamicegress; Setting the Host VLAN; Purpose

set vlan dynamicegress
7-16 802.1Q VLAN Configuration
set vlan dynamicegress
UsethiscommandtoadministrativelysetthedynamicegressstatusforoneormoreVLANs.
Syntax
set vlan dynamicegress vlan-list {enable | disable}
Parameters
Defaults
None.
Mode
Switchcommand,read‐write.
Usage
IfdynamicegressisenabledforaparticularVLAN,whenaportreceivesaframetaggedwiththat
VLAN’sID,theswitchwilladdthereceivingporttothatVLAN’segresslist.Dynamicegressis
disabledontheG‐Seriesbydefault.
Forexample,assumeyouhave20AppleTalkuserson
yournetworkwhoaremobileusers(thatis,
usedifferentportseveryday),butyouwanttokeeptheAppleTalktrafficisolatedinitsown
VLAN.YoucancreateanAppleTalkVLANwithaVLANIDof55withaclassificationrule thatall
AppleTalktrafficgetstaggedwithVLANID
55.Then,youenabledynamicegressforVLAN55.
Now,whenanAppleTalkuserplugsintoport
ge.3.5andsendsanAppleTalkpacket,theswitch 
willtagthepackettoVLAN55andalsoaddport
ge.3.5toVLAN55’segresslist,whichallowsthe
AppleTalkusertoreceiveAppleTalktraffic.
Example
ThisexampleshowshowtoenabledynamicegressonVLAN55:
G3(rw)->set vlan dynamicegress 55 enable
Setting the Host VLAN
Purpose
ToconfigureahostVLANthatonlyselectdevicesareallowedtoaccess.Thissecuresthehostport
formanagement‐onlytasks.
vlan‐list SpecifiestheVLANsbyIDtoenableordisabledynamicegress.
enable|disable Enablesordisablesdynamicegress.
Note: The host port is the management entity of the device. Refer to “Creating a Secure
Management VLAN” on page 7-1 for more information.