Cisco Systems SM-ISM, SA-ISA manual Safety Guidelines, Safety Warnings, ISA and ISA ISA with VAM

Chapter 2 Preparing for Installation

Safety Guidelines

•If ISA and VAM are in the chassis at system bootup, and the encryption mppe command is in the router’s running configuration, then both ISA and VAM are enabled at system bootup. The ISA card supports MPPE, and the VAM supports ISAKMP/IPSec. You can enable encryption mppe by following the steps in “Configuring IPSec” section on page 4-4. To disable MPPE on an ISA card, use the no encryption mppe command. This disables the ISA.

•To disable a card, use the no crypto engine accelerator type slot/port (port-adapter-slot-number/ interface-port-number) command.

Table 2-2 Interoperability Between ISA and VAM

ISA and ISA		ISA with VAM
•	Supports MPPE	•	Supports MPPE
•	Supports ISAKMP/IPSec	•	Supports ISAKMP/IPSec
• If two ISAs are enabled in the chassis at		• If ISA and VAM are enabled in the chassis at
	power up, then both modules support both		power up, ISA is used for MPPE, and VAM is
	MPPE and ISAKMP/IPSec.		used for ISAKMP/IPSec, provided the
			router’s running configuration includes the
			encryption mppe command.
• If ISA is enabled in the chassis at bootup, and		• If ISA is enabled in the chassis at bootup, and
	another ISA is added later, the second ISA		VAM is added later, the VAM remains
	immediately becomes active and depending		inactive until the next reboot, or until the
	on the configuration, the system attempts to		configuration is changed to enable the VAM.
	load-balance between the two ISAs.

Safety Guidelines

This section provides safety guidelines that you should follow when working with any equipment that connects to electrical power or telephone wiring.

Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might harm you. A warning symbol precedes each warning statement.

Integrated Services Adapter and Integrated Services Module Installation and Configuration

OL-3575-01 B0 2-3