Cisco Cisco IOS Software Release 12.4(4)T Données agrégées
Product Bulletin
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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2.1.2) Mobile IP—Policy and Application-Based Routing for Mobile Router Multi-Path Support
Cisco Mobile Routers (MRs) running Cisco Mobile Network technology, offer seamless network
connectivity for devices connecting to it. Network connectivity remains uninterrupted even when the
mobile router roams among various wireless and wired networks.
Cisco Mobile Routers (MRs) running Cisco Mobile Network technology, offer seamless network
connectivity for devices connecting to it. Network connectivity remains uninterrupted even when the
mobile router roams among various wireless and wired networks.
Prior to the introduction MR Multi-Path support in Cisco IOS Software Release 12.4(9)T, a Cisco
MR could only support seamless mobility to the Home Agent (HA) via a single mobile tunnel at a
time. The Multi-Path Support for Mobile Router feature allows a MR and a HA to establish multiple
Mobile IP tunnels over all available roaming interfaces. When the Multi-Path feature is enabled, the
MR registers through all of its available roaming interfaces to the HA. Each registration is
independent of the other registrations taking place on other roaming interfaces. Once registered
through the roaming interfaces, the MR will have multiple routes or multiple paths back to the HA
(assuming the Mobile IP Reverse Tunnel feature is configured). The mobile traffic from or to the
mobile network is then load-balanced among the multiple routes based on the CEF load balancing
algorithms, either per packet or per destination (default). In addition, this feature supports unequal
load balancing. The Multi-Path feature enables users to utilize all the possible bandwidth available
from all the enabled links.
MR could only support seamless mobility to the Home Agent (HA) via a single mobile tunnel at a
time. The Multi-Path Support for Mobile Router feature allows a MR and a HA to establish multiple
Mobile IP tunnels over all available roaming interfaces. When the Multi-Path feature is enabled, the
MR registers through all of its available roaming interfaces to the HA. Each registration is
independent of the other registrations taking place on other roaming interfaces. Once registered
through the roaming interfaces, the MR will have multiple routes or multiple paths back to the HA
(assuming the Mobile IP Reverse Tunnel feature is configured). The mobile traffic from or to the
mobile network is then load-balanced among the multiple routes based on the CEF load balancing
algorithms, either per packet or per destination (default). In addition, this feature supports unequal
load balancing. The Multi-Path feature enables users to utilize all the possible bandwidth available
from all the enabled links.
New in Cisco IOS Software Release 12.4(24)T is Application-Based Routing for Mobile Router
Multi-Path Support. This feature extends existing MR Multi-Path routing support to enable static
Access Control Lists (ACLs) and dynamic Policy-Based Routing (PBR) route-map commands to
define unique traffic types and route these traffic classes over specified interfaces or paths. This
feature enables you to bi-directionally define how specific traffic types should be routed across the
multiple tunnels established between the MR and HA. The same ACL and PBR policies are used
on both the MR and HA.
Multi-Path Support. This feature extends existing MR Multi-Path routing support to enable static
Access Control Lists (ACLs) and dynamic Policy-Based Routing (PBR) route-map commands to
define unique traffic types and route these traffic classes over specified interfaces or paths. This
feature enables you to bi-directionally define how specific traffic types should be routed across the
multiple tunnels established between the MR and HA. The same ACL and PBR policies are used
on both the MR and HA.
Figure 6.
Application-Based Routing for Mobile Router (MR) Multi-Path Support