HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 2 - LAN Switching Co - Page 126

Configuration guidelines, Configuring protocol-based VLANs, Introduction to protocol-based VLAN

Page 126 highlights

The following MAC VLAN addresses exist: S:Static D:Dynamic MAC ADDR MASK VLAN ID PRIO STATE 000d-88f8-4e71 ffff-ffff-ffff 100 0 S 0014-222c-aa69 ffff-ffff-ffff 200 0 S Total MAC VLAN address count:2 Configuration guidelines 1. MAC-based VLAN can be configured only on hybrid ports. 2. MAC-based VLAN is usually configured on the downlink ports of access layer devices, and cannot be configured together with the link aggregation function. Configuring protocol-based VLANs Introduction to protocol-based VLAN You use the protocol-based VLAN feature to assign packets to VLANs by their application type. The protocol-based VLAN feature assigns inbound packets to different VLANs based on their protocol type and encapsulation format. The protocols available for VLAN assignment include IP, IPX, and AppleTalk (AT), and the encapsulation formats include Ethernet II, 802.3 raw, 802.2 LLC, and 802.2 SNAP. A protocol template defines a protocol type and an encapsulation format. A protocol-based VLAN ID and a protocol index, combined, can uniquely identify a protocol template. You can assign multiple protocol templates to a protocol-based VLAN. Protocol-based VLAN assignment is available only on hybrid ports, and a protocol template applies only to untagged packets. When an untagged packet arrives, a protocol-based VLAN assignment enabled hybrid port processes the packet by using the following workflow: • If the protocol type and encapsulation format in the packet matches a protocol template, the packet is tagged with the VLAN tag specific to the protocol template. • If no protocol template is matched, the packet is tagged with the PVID of the port. The port processes a tagged packet as it processes tagged packets of a port-based VLAN. • If the port is in the same VLAN as the packet, it forwards the packet. • If not, the port drops the packet. Configuration restrictions and guidelines A protocol-based VLAN processes only untagged inbound packets, whereas the voice VLAN in automatic mode processes only tagged voice traffic. Do not configure a VLAN as both a protocol-based VLAN and a voice VLAN. For more information, see "Configuring a voice VLAN." Configuration procedure To configure a protocol-based VLAN: 117

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117
The following MAC VLAN addresses exist:
S:Static
D:Dynamic
MAC ADDR
MASK
VLAN ID
PRIO
STATE
--------------------------------------------------------
000d-88f8-4e71
ffff-ffff-ffff
100
0
S
0014-222c-aa69
ffff-ffff-ffff
200
0
S
Total MAC VLAN address count:2
Configuration guidelines
1.
MAC-based VLAN can be configured only on hybrid ports.
2.
MAC-based VLAN is usually configured on the downlink ports of access layer devices, and cannot
be configured together with the link aggregation function.
Configuring protocol-based VLANs
Introduction to protocol-based VLAN
You use the protocol-based VLAN feature to assign packets to VLANs by their application type.
The protocol-based VLAN feature assigns inbound packets to different VLANs based on their protocol
type and encapsulation format. The protocols available for VLAN assignment include IP, IPX, and
AppleTalk (AT), and the encapsulation formats include Ethernet II, 802.3 raw, 802.2 LLC, and 802.2
SNAP.
A protocol template defines a protocol type and an encapsulation format. A protocol-based VLAN ID
and a protocol index, combined, can uniquely identify a protocol template. You can assign multiple
protocol templates to a protocol-based VLAN.
Protocol-based VLAN assignment is available only on hybrid ports, and a protocol template applies only
to untagged packets.
When an untagged packet arrives, a protocol-based VLAN assignment enabled hybrid port processes
the packet by using the following workflow:
If the protocol type and encapsulation format in the packet matches a protocol template, the packet
is tagged with the VLAN tag specific to the protocol template.
If no protocol template is matched, the packet is tagged with the PVID of the port.
The port processes a tagged packet as it processes tagged packets of a port-based VLAN.
If the port is in the same VLAN as the packet, it forwards the packet.
If not, the port drops the packet.
Configuration restrictions and guidelines
A protocol-based VLAN processes only untagged inbound packets, whereas the voice VLAN in
automatic mode processes only tagged voice traffic. Do not configure a VLAN as both a protocol-based
VLAN and a voice VLAN. For more information, see "
Configuring a voice VLAN
."
Configuration procedure
To configure a protocol-based VLAN: