Avaya ERS 8600 series, Configuration Manual

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Chapter 1: New in this release
The following sections detail what's new in Avaya Ethernet Routing Switch 8800/8600 Configuration —
IPv6 Routing, NN46205-504 for Release 7.0.
• Features on page 11
• Changes in revision 03.02 on page 13
Features
For information about changes that are feature-related, see the following sections.
IPv6 DHCP Relay
IPv6 DHCP clients use link-local addresses to send and receive DHCP messages. To allow a
DHCP client to send a message to a DHCP server that is not attached to the same link, you
must configure a DHCP relay agent on the client's link to relay messages between the client
and server. The operation of the relay agent is transparent to the client.
A relay agent relays messages from clients and messages from other relay agents.
For more information, see
• IPv6 DHCP Relay on page 59
• IPv6 DHCP Relay configuration using the CLI on page 199
• IPv6 DHCP Relay configuration using the ACLI on page 207
• IPv6 DHCP Relay configuration using Enterprise Device Manager on page 195
IPv6 VRRP
To provide fast failover of a default router for IPv6 LAN hosts, the Avaya Ethernet Routing
Switch 8800/8600 supports the Virtual Router Redundancy Protocol (VRRP v3) for IPv6
(defined in draft-ietf-vrrp-ipv6-spec-08.txt).
VRRPv3 for IPv6 provides a faster switchover to an alternate default router than is possible
using the ND protocol. With VRRPv3, a backup router can take over for a failed default router in
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