IEEE 802.1Q - Revision history

Heth: /* Tagging a Frame */

2009-08-20T08:29:32Z

‎Tagging a Frame

2009-07-30T12:41:29Z

2009-07-30T12:41:02Z

2009-05-02T07:17:26Z

‎Why is a trunk protocol needed

2009-04-28T07:11:38Z

‎Tagging a Frame

2009-04-28T07:10:31Z

‎Native VLAN

2009-04-28T07:06:38Z

‎Tagging a Frame

2009-04-28T07:05:27Z

‎Tagging a Frame

2009-04-28T07:04:28Z

‎Tagging a Frame

2009-04-28T07:00:06Z

@@ Line 15: / Line 15: @@
 ! Field !! Description
 |-
-|Priority || Also called [[COS]] field or Class Of Service. A priority between 0 and 7
+|Priority || Also called [[CoS]] field or Class of Service. A priority between 0 and 7
 |-
 |CFI || Canonical Field Indicator CFI=0 (Ethernet) CFI=1 (Token Ring)

@@ Line 24: / Line 24: @@
 == Native VLAN ==
 Defined in the 802.1Q specification there is one untagged VLAN. The standard untagged VLAN for ethernet is VLAN 1 which is the standard administrative VLAN. All ethernet ports belong to VLAN 1 on a unconfigured switch.
-=== VLAN Hopping ===
+== VLAN Hopping ==
 {{:VLAN Hopping}}

← Older revision		Revision as of 12:41, 30 July 2009
Line 24:		Line 24:
	== Native VLAN ==		== Native VLAN ==
	Defined in the 802.1Q specification there is one untagged VLAN. The standard untagged VLAN for ethernet is VLAN 1 which is the standard administrative VLAN. All ethernet ports belong to VLAN 1 on a unconfigured switch.		Defined in the 802.1Q specification there is one untagged VLAN. The standard untagged VLAN for ethernet is VLAN 1 which is the standard administrative VLAN. All ethernet ports belong to VLAN 1 on a unconfigured switch.
		+	=== VLAN Hopping ===
		+	{{:VLAN Hopping}}

@@ Line 6: / Line 6: @@
 A trunk protocol is needed when using a OSI layer 2 technology as [[Ethernet]] or [[Token Ring]] because the Layer 2 header has no field describing the origin of the frames. Se figure two upper half ''Standard  802.3 Ethernet Frame''. There is no field where the transmitting Switch can tell the receiving Switch which VLAN a receiving frame belongs.
 [[image:DOT1Q.png|thumb|400px|float|Figure 2: Standard untagged Ethernet frame and 802.1Q tagged ethernet frame]]
 === Tagging a Frame ===
 If both switches uses the IEEE 802.1Q tagging trunk protocol, the transmitting Switch ''tags'' the frame when sending it. Se figure 2 bottom half ''802.1Q tagged 802.3 Ethernet Frame''

@@ Line 17: / Line 17: @@
 |CFI || Canonical Field Indicator CFI=0 (Ethernet) CFI=1 (Token Ring)
 |-
-|VID || Vlan ID, to which VLAN number the Frame belongs
+|VID || Vlan ID, to which VLAN number the Frame belongs (0 - 4095)
 |}
 == Native VLAN ==
 Defined in the 802.1Q specification there is one untagged VLAN. The standard untagged VLAN for ethernet is VLAN 1 which is the standard administrative VLAN. All ethernet ports belong to VLAN 1 on a unconfigured switch.

← Older revision		Revision as of 07:10, 28 April 2009
Line 20:		Line 20:
	\|}		\|}
	== Native VLAN ==		== Native VLAN ==
		+	Defined in the 802.1Q specification there is one untagged VLAN. The standard untagged VLAN for ethernet is VLAN 1 which is the standard administrative VLAN. All ethernet ports belong to VLAN 1 on a unconfigured switch.

@@ Line 9: / Line 9: @@
 If both switches uses the IEEE 802.1Q tagging trunk protocol, the transmitting Switch ''tags'' the frame when sending it. Se figure 2 bottom half ''802.1Q tagged 802.3 Ethernet Frame''
 {|border=1 ;style="margin: 0 auto; text-align: center;cellpadding="5" cellspacing="0"
-|+ IPv4 Multicast Address groups
+|+ DOT1Q tag fields
 |- bgcolor=lightgrey
 ! Field !! Description

← Older revision		Revision as of 07:04, 28 April 2009
Line 8:		Line 8:
	=== Tagging a Frame ===		=== Tagging a Frame ===
	If both switches uses the IEEE 802.1Q tagging trunk protocol, the transmitting Switch ''tags'' the frame when sending it. Se figure 2 bottom half ''802.1Q tagged 802.3 Ethernet Frame''		If both switches uses the IEEE 802.1Q tagging trunk protocol, the transmitting Switch ''tags'' the frame when sending it. Se figure 2 bottom half ''802.1Q tagged 802.3 Ethernet Frame''
		+	{\|border=1 ;style="margin: 0 auto; text-align: center;cellpadding="5" cellspacing="0"
		+	\|+ IPv4 Multicast Address groups
		+	\|- bgcolor=lightgrey
		+	! Field !! Description
		+	\|-
		+	\|Priority \|\| Also called [[COS]] field or Class Of Service. A priority between 0 and 7
		+	\|-
		+	\|CFI \|\| Canonical Field Indicator
		+	\|-
		+	\|VID \|\| Vlan ID, to which VLAN number the Frame belongs
		+	\|}