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458 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Configuring an IPv6 protocol VLAN
13
Configuring an IPv6 protocol VLAN
You can configure a protocol-based VLAN as a broadcast domain for IPv6 traffic. When the Layer 3
Switch receives an IPv6 multicast packet (a packet with 06 in the version field and 0xFF as the
beginning of the destination address), the Layer 3 Switch forwards the packet to all other ports.
NOTE
The Layer 3 Switch forwards all IPv6 multicast packets to all ports except the port that received the
packet, and does not distinguish among subnet directed multicasts.
You can add the VLAN ports as static ports or dynamic ports. A static port is always an active
member of the VLAN. Dynamic ports within any protocol VLAN age out after 10 minutes if no
member protocol traffic is received on a port within the VLAN. The aged out port, however, remains
as a candidate dynamic port for that VLAN. The port becomes active in the VLAN again if member
protocol traffic is received on that port.
Once a port is re-activated, the aging out period for the port is reset to 20 minutes. Each time a
member protocol packet is received by a candidate dynamic port (aged out port) the port becomes
active again and the aging out period is reset for 20 minutes.
NOTE
You can disable VLAN membership aging of dynamically added ports. Refer to “Disabling
membership aging of dynamic VLAN ports” on page 465).
To configure an IPv6 VLAN, enter commands such as the following.
PowerConnect(config)# vlan 2
PowerConnect(config-vlan-2)# untagged ethernet 1/1 to 1/8
PowerConnect(config-vlan-2)# ipv6-proto name V6
PowerConnect(config-ipv6-subnet)# static ethernet 1/1 to 1/6
PowerConnect(config-ipv6-subnet)# dynamic
The first two commands configure a port-based VLAN and add ports 1/1 – 1/8 to the VLAN. The
remaining commands configure an IPv6 VLAN within the port-based VLAN. The static command
adds ports 1/1 – 1/6 as static ports, which do not age out. The dynamic command adds the
remaining ports, 1/7 – 1/8, as dynamic ports. These ports are subject to aging as described
above.
Syntax: [no] ipv6-proto [name <string>]
Routing between VLANs using virtual routing
interfaces (Layer 3 Switches only)
Layer 3 Switches offer the ability to create a virtual routing interface within a Layer 2 STP
port-based VLAN or within each Layer 3 protocol, IP subnet, or IPX network VLAN. This combination
of multiple Layer 2 or Layer 3 broadcast domains, or both, and virtual routing interfaces are the
basis for Brocade’ very powerful Integrated Switch Routing (ISR) technology. ISR is very flexible and
can solve many networking problems. The following example is meant to provide ideas by
demonstrating some of the concepts of ISR.