Cisco Cisco IOS Software Release 12.4(15)XM

Migration means far more than simply replacing MWAM modules with SAMI modules. It should be well 
designed, and conducted in a way that has minimal impact on the existing mobile subscriber’s service 
connections. 

If there is no redundancy backward compatibility on Home Agent R4.0, HA-SLB can be enabled and 
configured to avoid service-disruption, which requires extra network configuration and provisioning. If 
there is redundancy backward compatibility on Home Agent R4.0, network configuration and 
provisioning will be minimal. 

2

Non-redundant

Non-SLB

Multiple 
7200VXR/NPE-G1

Non-redundant

SLB enabled

One SUP720/SAMI

Significant configuration change 
for both hardware and software.

3

Redundant 

Non-SLB

Two 7200VXR/NPE-G1

Redundant 

Non-SLB

SUP720/redundancy

Two SAMI (single 
chassis)

Significant configuration change 
(hardware and software)

4

7600/redundant SUP2

HA-SLB enabled

redundant MWAM 

(single chassis)

7600/redundant SUP720

HA-SLB enabled

Redundant SAMI

(single chassis)

Very large configuration change 
(from SUP2 to SUP720, the whole 
chassis is reset) for hardware and 
software.

5

7600/redundant SUP720

HA-SLB enabled

redundant MWAM (Single 
chassis)

SUP IOS SXF

7600/redundant SUP720

HA-SLB enabled

redundant SAMI

(the same Single chassis)

SUP IOS SRC

Minimal configuration change for 
hardware and software.

Changing from SXF to SRC release 
for SUP requires chassis reset.

6

7600/redundant SUP720

HA-SLB enabled

redundant MWAM (Dual 
chassis)

SUP IOS SXF

7600/redundant SUP72

HA-SLB enabled

redundant SAMI

(Dual chassis)

SUP IOS SRC

Minimal configuration change for 
hardware and software.