Brocade TurboIron 24X Series Configuration Guide - Manual (Page 168)

134 Brocade TurboIron 24X Series Configuration Guide
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IPv6 addressing overview
• You can use the two colons (::) only once in the address to represent the longest successive
hexadecimal fields of zeros
• The hexadecimal letters in IPv6 addresses are not case-sensitive
As shown in Figure 1 , the IPv6 network prefix is composed of the left-most bits of the address. As
with an IPv4 address, you can specify the IPv6 prefix using the <prefix> / <prefix-length> format,
where the following applies.
The <prefix> parameter is specified as 16-bit hexadecimal values separated by a colon.
The <prefix-length> parameter is specified as a decimal value that indicates the left-most bits of
the IPv6 address.
The following is an example of an IPv6 prefix.
2001:DB8:49EA:D088::/64
IPv6 address types
As with IPv4 addresses, you can assign multiple IPv6 addresses to a switch interface. Table 29
presents the three major types of IPv6 addresses that you can assign to a switch interface.
A major difference between IPv4 and IPv6 addresses is that IPv6 addresses support scope, which
describes the topology in which the address may be used as a unique identifier for an interface or
set of interfaces.
Unicast and multicast addresses support scoping as follows:
• Unicast addresses support two types of scope: global scope and local scope. In turn, local
scope supports site-local addresses and link-local addresses.
Table 29 describes global,
site-local, and link-local addresses and the topologies in which they are used.
• Multicast addresses support a scope field, which Table 29 describes.