Preface
Product Alerts and Field Notices
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Cisco CRS-1 Carrier Routing System Multishelf System Upgrade and Conversion Guide
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A current list of security advisories, security notices, and security responses for Ciscoproducts is
available at thisURL:
http://www.cisco.com/go/psirt
To see security advisories, security notices, and security responses as they are updated in real time, you
can subscribe to the Product Security In cident Response Team Really Simple Syndication (PSIRT RSS)
feed. Information about how to subscribe to the PSIRT RSS feed is found at thisURL:
http://www.cisco.com/en/US/products/products_psirt_rss_feed.html

Reporting Security Problems in Cisco Products

Cisco is committed to delivering secure products. We test our products internally before we release them,
and we strive to correct all vulnerabilities quickly. If you think that you have identified a vulnerability
in a Cisco product, contact PSIRT:
•For emergencies only—security-alert@cisco.com
An emergency is either a condition in which a system is under active attack or a condition for which
a severe and urgent security vulnerability should be reported. All other conditions are considered
nonemergencies.
•For nonemergencies— psirt@cisco.com
In an emergency, you can also reach PSIRT by telephone:
•1 877 228-7302
•1 408 525-6532
Tip We encourage you to use Pretty Good Privacy (PGP) or a compatible product (for example, GnuPG) to
encrypt any sensitive information that you send to Cisco. PSIRT can work with information that has been
encrypted with PGP versions2.x through 9.x.
Never use a revoked encryption key or an expired encryption key. The correct public key to use in your
correspondence with PSIRT is the one linked in the Contact Summary section of the Security
Vulnerability Policy page at thisURL:
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html
The link on this page has the current PGP key ID in use.
If you do not have or use PGP, contact PSIRT to find other means of encrypting the data before sending
any sensitive material.
Product Alerts and Field Notices
Modifications to or updates about Cisco products are announced in Cisco Product Alerts and Cisco Field
Notices. You can receive Cisco Product Alerts and Cisco Field Notices by using the Product Ale rt Tool
on Cisco.com. This tool enables you to create a profile and choose th ose products for which you want to
receive information.