Cisco Systems 3560X Manual De Usuario
43-10
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 43 Configuring IPv6 Unicast Routing
Configuring IPv6
If a new switch becomes the stack master, it recomputes the IPv6 routing tables and distributes them to
the member switches. While the new stack master is being elected and is resetting, the switch stack does
not forward IPv6 packets. The stack MAC address changes, which also changes the IPv6 address. When
you specify the stack IPv6 address with an extended unique identifier (EUI) by using the ipv6 address
ipv6-prefix/prefix
the member switches. While the new stack master is being elected and is resetting, the switch stack does
not forward IPv6 packets. The stack MAC address changes, which also changes the IPv6 address. When
you specify the stack IPv6 address with an extended unique identifier (EUI) by using the ipv6 address
ipv6-prefix/prefix
length eui-64 interface configuration command, the address is based on the interface
MAC address. See the
If you configure the persistent MAC address feature on the stack and the stack master changes, the stack
MAC address does not change for approximately 4 minutes. For more information, see the
MAC address does not change for approximately 4 minutes. For more information, see the
These are the functions of IPv6 stack master and members:
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Stack master:
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runs IPv6 routing protocols
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generates routing tables
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distributes CEFv6 routing tables to stack members that use dCEFv6
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runs IPv6 host functionality and IPv6 applications
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Stack member (must be running the IP services feature set):
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receives CEFv6 routing tables from the stack master
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programs the routes into hardware
Note
IPv6 packets are routed in hardware across the stack if the packet does not have exceptions
(IPv6Options) and the switches in the stack have not run out of hardware resources.
(IPv6Options) and the switches in the stack have not run out of hardware resources.
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flushes the CEFv6 tables on master re-election
Configuring IPv6
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