Installation guide

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Network Processing Engine and Network Services Engine Installation and Configuration

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Chapter 7 NPE-G1 and NPE-G2 Installation and Configuration Information

Enabling the Second Processor on the NPE-G1

The Cisco 7200VXR NPE-G1 includes a dual-CPU-core BCM 1250 processor. All Cisco IOS images

for the Cisco 7200VXR NPE-G1 use CPU-core 0. CPU-core 1 allows acceleration of speciﬁc feature sets

via separately purchased special software. As of Cisco IOS Release 12.3(14)YM, multi-processor forwarding

(MPF) accelerates the following broadband features: L2TP Access Concentrator (LAC), L2TP Network

Server (LNS), and PPP Terminated Aggregation (PTA). Port adapters are not supported in the

multi-processor forwarding (MPF) path on processor 1.

Only the following port adapters are supported in the punt path (Processor 0, processing Cisco IOS) on

Cisco IOS Release 12.3(14)YM and later releases of Cisco IOS Release 12.3YM:

• PA-A3-OC3 (SMI/SML/MM)

• PA-A3-T3

• PA-A3-E3

• PA-A6-OC3 (SMI/SML/MM)

• PA-A6-T3

• PA-A6-E3

• PA-FE-TX

• PA-2FE-TX

• PA-2FE-FX

You may have purchased the enabling software when you purchased a new chassis or you may have

purchased the software as an upgrade.

If you are purchasing the software as an upgrade, you must:

• Upgrade the ROMmon. The minimum ROMmon version is 12.3-4r.T3.

• Install the enabling software.

Instructions for upgrading ROMmon are in the “Using the upgrade rom-monitor file Command” section

on page 7-62.

The minimum software release for the Broadband L2TP Access Concentrator (LAC), L2TP Network

Server (LNS), and PPP Terminated Aggregation (PTA) is Cisco IOS Release 12.3(14)YM.

Also seethe Multi-Processor Forwarding (MPF) for Broadband LAC, LNS, and PTA document for minimum

memory requirements and conﬁguration information.

Note Before enabling the second processor, you must have IP routing turned on.

Processor 1 is enabled by default after you install the enabling software. To have all packets forwarded

by processor 0, use the no ip mpf command. To enable processor 1, use the ip mpf command.

hostname: (config)# [no] ip mpf

Save the running configuration to NVRAM. See the “Copying the Saved Configuration to NVRAM”

section on page 7-51. If you do not save the configuration settings that you created in the router using

configuration mode and the setup facility, your configuration will be lost the next time you reload the

router.