Cisco Cisco Packet Data Gateway (PDG) Guida Dell'Amministratore
Network Mobility (NEMO)
Features and Benefits ▀
Cisco ASR 5x00 Home Agent Administration Guide ▄
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Features and Benefits
The system supports the usage of dynamically learned, overlapping customer prefixes. These prefixes are advertised
through BGP in a manner similar to pool routes in the current EHA implementation. NEMO includes the following
features:
through BGP in a manner similar to pool routes in the current EHA implementation. NEMO includes the following
features:
Interoperates with the Mobile IPv4 NEMO implementation of the Cisco ISR CPE routers.
Protocol behavior.
Message structures, formats and encoding.
Specific flags and parameters.
Compatible with the specifics of the Mobile IPv4 NEMO operation of the Cisco ISR CPE routers.
Support for the second Mobile IPv4 NEMO Control Messaging.
Support for GRE NEMO-Tunnel termination (One NEMO-Tunnel per MR).
Support for explicit LAN Prefix registration mode.
Support for private customer addressing, routing and traffic segmentation
Private and overlapping WAN-IP addresses.
Private and overlapping LAN Prefixes.
Customer LAN Prefix advertisement from the EHA egress contexts via BGP
Customer traffic segmentation and mapping of the incoming NEMO-Tunnels to the appropriate
VLAN/VRF.
Ability to seamlessly integrate with the existing MPN service environment.
Selective suppression or replacement of specific fields in the NEMO Mobile IPv4 Control Messaging
sourced by the CPE routers.
Correlation of the incoming NEMO Control and Forwarding traffic with the existing control and flow
structures related to the HWIC device processing by the underlying IS-835/MIP logic in the EHA.
Compatibility with the existing AAA requirements.
The HWIC IS-835/PPP/MIP timers shall be compatible with today's EHA implementation.
PDSN's PPP idle timeout (2 hrs)
PDSN's PPP absolute timer (24 hrs)
First MIP session re-registration timer (1hr 55min)
NEMO-HA is not required to generate AAA accounting records (START/STOP) for the NEMO MIP session.
On the other hand, accounting records are generated for the MR's HWIC MIP session, just like with any other
MIP sessions.
MIP sessions.
NEMO-HA supports explicit registration mode and does not require authorization/validation of the LAN
Prefixes sent by the MR.
If the authentication of the NEMO MIP session fails, the underlying HWIC IS-835/MIP session is maintained
since the NEMO function may attempt to establish the NEMO-Tunnel again.