Can anybody give an explanation for real function of tagged versus

untagged people in a VLAN? A genuine industry example is worthwhile. We have see the records, but it is certainly not obvious.

Into the most basic form, I regularly recall a ‘Tagged’ slot as an inter-switch hyperlink and an ‘Untagged’ port as a number slot

• All message board subject areas
• Past Topic
• Then Topic

The language of tagging try confusing without having some understanding of how process performs. Take a look and view whether this clears right up anything individually:

But anyways, an untagged interface in a VLAN was a physical member of that VLAN, ie. as soon as you put the number into that slot it’s physically linked to that VLAN (often referred to as an “access interface” in Cisco language).

A tagged interface will usually hold traffic for numerous VLANs from switch to additional system systems particularly an upstream router or an edge turn (In Cisco terminology this is exactly called trunking, horsepower have no particular term because of it).

If a number should fit in with multiple VLAN, the slot ought to be TAGGED (as an example an VMware ESX Server with guests that belongs to different VLANs)

When you configure a slot as ‘Tagged’ you might be telling the switch to spot an 802.1q tag in the framework that will diagnose the VLAN that the frame originated in.

Are you stating that a physical ethernet cable is has to be connected from interface 20 to port 10 for a passing fancy change to let telecommunications between VLAN 10 and VLAN 20? If that’s the case, I am presuming a physical cable would only be needed if IP Routing was not allowed on turn?

if you like that a port only is assigned to one VLAN, ready the interface to UNTAGGED. If you like a port in more then one VLAN, you need to set it up to TAGGED. When you need to uplink a switch to some other, you will need to set the uplink slot to TAGGED, each VLAN which will feel acccessable throughout the uplink.

Be sure to i’ve an issue of inter-vlan routing, You will find a center and two switches in each area floors. Below config core and a switch to floor, be sure to, I’am clogged, plz I want let I can not gain access to the other sub sites together with the ip .1.25 ======================================== program running-config Running setup: ; J4819A setting Editor; Created on release #elizabeth. good grief Dating hostname “HP ProCurve turn 5308xl” snmp-server contact “test” mirror-port D11 module 6 sort J4907A module 5 type J4907A module 4 type J4907A module 1 kind J4878B module 2 kind J4878B module 3 kind J4878B internet protocol address routing snmp-server neighborhood “public” Unrestricted vlan 1 name “DEFAULT_VLAN” untagged A1-A4,B1-B4,C1-C4,D15-D16,E1-E16,F3-F4,F6-F9,F11-F16 ip address .X.1 .0.0 internet protocol address .X.250 .0 no untagged D1-D14,F1-F2,F5,F10 exit vlan 2 term “WIFI” untagged F1-F2,F5,F10 tagged A4,B4 leave vlan 100 label “DMZ” untagged D6-D7,D13-D14 internet protocol address .X.254 .0 leave vlan 200 title “INTERNET” untagged D1-D5,D8-D12 ip .X.254 .0 watch escape vlan 3 name “MANAGEMENT” ip .X.1 .0.0 leave Vlan 11 identity “test” .1.254 .0 escape advertising motd “this is exactly a private program kept by the Allied Widget Corporatio letter. Unauthorized usage of this system can lead to municipal and criminal penalities !” spanning-tree spanning-tree concern 2 router tear leave vlan 1 ip rip internet protocol address rip receive V1-only internet protocol address tear deliver V1-only exit vlan 100 ip rip internet protocol address rip accept V1-only ip rip submit V1-only escape ============================================ floors change: ProCurve 2910al-48G-1E-2# ProCurve 2910al-48G-1E-2# ProCurve 2910al-48G-1E-2# ProCurve 2910al-48G-1E-2# sh running-config run arrangement: ; J9147A arrangement Editor; Created on launch #W. hostname “ProCurve 2910al-48G-1E-2” component 1 kind J9147A ip routing vlan 1 identity “DEFAULT_VLAN” untagged 1-48 internet protocol address .X.5 .0.0 leave gvrp advertising motd “it is an exclusive program managed from the Allied Widget company.\nUnauthorized use of this technique can result in ci vil and violent penalities !” snmp-server area “public” unrestricted spanning-tree force-version rstp-operation code manager code operator ProCurve 2910al-48G-1E-2