Table Of Contents
Cisco Service and Application Module for IP Overview
Cisco Service and Application Module for IP Overview
Classification and Distribution Engine
PPC Configuration File Storage on the Supervisor Engine
Cisco IOS Software Application Support
System Requirements and Specifications
Cisco Service and Application Module for IP Overview
This chapter describes the Cisco Service and Application Module for IP (SAMI) and includes the following sections:
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Cisco Service and Application Module for IP Overview
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Cisco Service and Application Module for IP Overview
The following versions of the Cisco SAMI are available:
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With Cisco IOS Release 12.4(15)XQ and later, the following 2-GB memory option is available:
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The Cisco SAMI, is a high performance, Cisco IOS software application module that occupies one slot in the Cisco 7600 series router platform.
With an IXP2800 network processor flow-distributor running at 1.4 GHz, and six PowerPCs (PPCs) running at 1.25 GHz, each of which runs an instance of the same Cisco IOS image, the SAMI offers a parallel architecture for Cisco software applications such as the Cisco Content Services Gateway - 2nd Generation (CSG2), the Cisco Gateway GPRS Support Node (GGSN), and the Cisco Mobile Wireless Home Agent (HA).
The benefits of the SAMI architecture over the Cisco Multiprocessor WAN Application Module (MWAM) include:
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Figure 1-1 illustrates the SAMI architecture:
Figure 1-1 SAMI Architecture
Figure 1-2 illustrates the flow of data on the SAMI:
Figure 1-2 SAMI Data Flow
The following sections describe the primary SAMI hardware and software features:
Hardware Features
The SAMI provides the following hardware features:
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Backplane Interface
The SAMI backplane interface is a switch fabric-enabled interface, with a total supported bandwidth of 16 Gbps TX/RX.
Line Card Control Processor
On the SAMI there is a BCM1250 dualcore CPU running at 700 MHz that provides the following functionality as the line card control processor (LCP):
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Classification and Distribution Engine
The SAMI classification and distribution engine (CDE) classifies and distributes packets to various source and destinations on the board and provides the Cisco 7600 series router chassis backplane interface.
The data flows (Figure 1-2) are as follows:
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Network Processor
A Intel IXP2800 network processor (IXP0) on the baseboard load balances and classifies ingress packets for forwarding to the PPCs on the daughter cards.
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Daughter Cards
The two SAMI daughter cards (DC0 and DC1) provide the following primary components:
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Each PPC on a SAMI runs the same version of a Cisco IOS software application image. This is the default installation during an image upgrade. Different Cisco IOS software application images can run on separate SAMIs within the same Cisco 7600 chassis.
All PPCs can function together as a single entity.
The supervisor engine and the SAMI can be configured to store the running configuration of each PPC on the supervisor engine, enabling a SAMI to be replaced while retaining the PPC configurations.
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Compact Flash
Stores configuration, software images, and core files.
Software/Firmware Features
The SAMI offers the following software features:
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PPC Configuration File Storage on the Supervisor Engine
The PPC Configuration File Storage on the Supervisor feature enables the startup configuration file of each of the SAMI PPCs to be stored in the supervisor engine bootflash. This feature enables a SAMI in a specific slot to be replace without losing the configurations associated with each of the PPCs on the SAMI.
For information about enabling this feature, see "Enabling the Supervisor to Store PPC Startup Configuration Files" section on page 3-5.
Remote Console and Logging
Remote console and logging (RCAL) enables operators to use the supervisor engine console as a single connection point from which to access the LCP and the PPCs on the SAMI daughter cards to control debugging, display show commands, and view logging output for the PPCs on the SAMI.
For information about configuring RCAL support, see "Configuring Remote Console and Logging" section on page 3-16.
Session Support
From the supervisor engine console, sessions to the SAMI LCP, network processor (IXP0), and the PPCs can be established.
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Specifically, the following sessions, listed by number, can be established:
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LCP
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IXP0
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IXP1 (for future use)
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DC0, PPC0
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DC0, PPC1
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DC0, PPC2
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DC1, PPC0
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DC1, PPC1
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DC1, PPC2
For information about establishing sessions, see "Establishing Console Sessions" section on page 3-2. For information on establishing a console connection, see "Establishing a Console Connection on the SAMI" section on page 4-24.
Health Monitoring
A SAMI PPC can be configured to send probes to monitor the health of its path to the network processor, or to monitor the health of all paths to the supervisor engine.
If a PPC does not receive a response to a probe that it has sent, it determines that there is an issue with a path. If this condition occurs, the PPC can be configured to send a notification to the LCP that instructs the LCP to reset the SAMI.
For more information about configuring health monitoring on the SAMI, see "Configuring Health Monitoring" section on page 4-24.
High Availability
High availability is provided via a stateful switchover redundancy scheme on the supervisor engine.
For information on configuring redundancy on the Cisco 7600, refer to the Cisco 7600 router documentation in the "Related Documentation" section on page -xvii.
Hot Fabric Sync
The switch fabric module functionality is built into the Supervisor Engine 720 and the RSP720. When a supervisor engine switchover occurs, a fabric switchover also occurs. During this process, the line cards must resynchronize with the new active switch fabric. The Hot Fabric Sync feature, which is enabled by default, keeps both the active and standby fabric in sync at the same time, minimizing the switchover time and thereby minimizing any impact on switch fabric traffic. To verify the fabric sync status of active and standby supervisors, enter the show fabric status command.
With Cisco IOS 12.2(33)SRC on the supervisor, this feature is supported on the Cisco 7603-S, Cisco 7604, Cisco 7606-S, and Cisco 7609-S routers. With Cisco IP Transfer Point, Cisco IOS Release 12.2(25)IRA or later, the Hot Fabric Sync feature is supported on the SAMI.
For more information about the Hot Fabric Sync feature, refer to the Cisco 7600 documentation in the "Related Documentation" section on page -xvii.
Cisco IOS Software Application Support
Each of the PPCs on a SAMI runs an instance of the same version of a Cisco IOS software application image. Multiple SAMIs running a different Cisco IOS software application on its PPCs can be implemented within the same chassis.
The list of Cisco IOS software applications supported on SAMI includes, but is not limited to, the following:
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See the "Related Documentation" section on page xvii for a list of documents related to the Cisco IOS software applications.
Front Panel Description
Figure 3 illustrates the front panel of the SAMI.
Figure 3 SAMI Front Panel
This section describes the following components on the front panel:
Status LED
When you power up the SAMI, it initializes various hardware components and communicates with the supervisor engine. The Status LED indicates the supervisor engine operations and the initialization results. During the normal initialization sequence, the Status LED changes from off to red, orange, and green.
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Table 1 describes the Status LED operation.
Reset Button
Caution
The Reset button manually shuts down the SAMI. To properly shut down the SAMI to prevent data loss, enter the no power enable module command in configuration mode at the router CLI.
If the SAMI fails to respond to this command, shut down the module by using a small pointed object (such as a paper clip) to access the Reset button on the front panel of the SAMI. The shutdown procedure may take several minutes. The Status LED turns off when the module shuts down.
USB Port
The USB port is not used.
RJ-45 Console Connector
In general, the SAMI RJ-45 console port is not used except for possibly some specific cases of troubleshooting and recovery that might require accessing the LCP via the external console port.
System Requirements and Specifications
The following sections describe the system requirements and specifications for the SAMI:
System Requirements
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For the hardware and software requirements of the Cisco IOS mobile wireless application you are running on the Cisco SAMI, refer to the documentation for that application.Before you install the SAMI with preloaded software in the Cisco 7600 series router chassis, ensure that the chassis contains the following:
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Cisco 7600 Series Supervisor Engine 32, with a Multilayer Switch Feature Card, running Cisco IOS Release 12.2(33)SRC and later. Supervisor Engine 32 support requires LCP ROMMON Version 12.2[121] and later on the Cisco SAMI.
For details on upgrading the Cisco IOS release running on the supervisor engine, refer to the "Upgrading to a New Software Release" section in the Release Notes for Cisco IOS Release 12.2SR.
For information about verifying and upgrading the LCP ROMMON image on the Cisco SAMI, see the "Manually Upgrading an LCP ROMMON Image" section on page 4-9.
The SAMI occupies a single slot in the Cisco 7600 series router chassis.
The maximum number of SAMIs supported in a single chassis is dependent on the Cisco IOS software application running on the SAMI PPCs. Therefore, for the maximum number of SAMIs supported in a chassis, refer to the application documentation (see the "Related Documentation" section on page xvii).
For more information on the Cisco 7600 series router, see the Cisco 7600 Series Router Installation Guide at this URL:
http://www.cisco.com/en/US/products/hw/routers/ps368/prod_installation_guides_list.html
Power Requirements
The SAMI operates on power supplied by the Cisco 7600 series router. The SAMI power consumption is 300W (1024 BTU/hr).
Memory Requirements
The SAMI memory is not configurable.
Environmental Requirements
Table 1-2 lists the environmental requirements for the SAMI.
Physical Specifications
Table 1-3 lists the physical specifications of the SAMI.
Table 1-3 SAMI Physical Specifications
Dimensions (H x W x D)
1.2 x 14.4 x 16 in (3.0 x 35.6 x 40.6 cm)
Weight
12.15 lb.
Agency Approvals
Emissions:
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Immunity:
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