Cisco ASR 5000 Series User Manual

Packet Data Interworking Function Overview
Features and Functionality - Base Software ▀
Cisco ASR 5000 Series Product Overview ▄
OL-22938-02
Mobile IP and Proxy Mobile IP Attributes
Important: The SN-Proxy-MIP attribute is required when PDIF supports proxy mobile IP. The PDIF-Mobile-IP-
Required attribute is SN1-PDIF-MIP-Required. These attributes need to be returned in a AAA response message or the
mobile IP call fails, although there might be an option for simple IP call setup. See the Sample Deployments section for
more information on attribute messaging.
IPv6 Support
This section describes the level of IPv6 support. All known restrictions are shown in Engineering Restrictions.
Configuration examples are shown in Configuration.
Native IPv6 supports configuration of interfaces and routes with IPv6 (128-bit) addressing. PDIF supports IPv6 for
communication with Diameter servers over SCTP. Using the Diameter proxy mechanism, each PSC needs a unique
IPv6 address. Multiple IPv6 interfaces per context are supported.
Native IPv6 interfaces communicate with the Diameter servers. PDIF supports the configuration of 32 IPv6 Ethernet
interfaces and 32 IPv6 loopback interfaces per context:
One configured (CIDR global or site-local) IPv6 address per interface.
Support for auto-configuration of link-local address based on an assigned MAC address. If the MAC address
changes, the link-local addresses are updated accordingly. If a virtual MAC address is configured, it uses that
MAC address for the link-local IFID. Note that this is distinct from the manual configuration of IPv6 addresses
described below.
IPv6 Neighbor Discovery
IPv6 Neighbor Discovery protocol is used to dynamically discover the directly attached devices on IPv6 interfaces. It
facilitates the mapping of MAC addresses to IPv6 Addresses. PDIF supports a subset of IPv6 Neighbor Discovery as
defined by [RFC 2461] as follows:
Uses IPv6 Neighbor Discovery to learn the Ethernet link-layer addresses of the directly connected next-hop
gateway.
Supports configuration of static IPv6 neighbors.
Adds link-local addresses to Ethernet type interfaces automatically.
Performs Unsolicited Neighbor Advertisement on line card switchover.
Responds to neighbor discovery requests for the PDIF IPv6 addresses.

Cisco ASR 5000 Series Specifications

General

Brand	Cisco
Model	ASR 5000 Series
Category	Network Router
Language	English