Call GTAC
For immediate support: (800) 998 2408 (toll-free in U.S. and Canada) or 1 (408) 579 2826. For the
support phone number in your country, visit: www.extremenetworks.com/support/contact
Before contacting Extreme Networks for technical support, have the following information ready:
• Your Extreme Networks service contract number, or serial numbers for all involved Extreme
Networks products
• A description of the failure
• A description of any actions already taken to resolve the problem
• A description of your network environment (such as layout, cable type, other relevant environmental
information)
• Network load at the time of trouble (if known)
• The device history (for example, if you have returned the device before, or if this is a recurring
problem)
• Any related RMA (Return Material Authorization) numbers
Subscribe to Product Announcements
You can subscribe to email notifications for product and software release announcements, Field
Notices, and Vulnerability Notices.
1. Go to The Hub.
2. In the list of categories, expand the Product Announcements list.
3. Select a product for which you would like to receive notifications.
4. Select Subscribe.
5. To select additional products, return to the Product Announcements list and repeat steps 3 and 4.
You can modify your product selections or unsubscribe at any time.
Documentation and Training
Find Extreme Networks product information at the following locations:
Current Product Documentation
Release Notes
Hardware and software compatibility for Extreme Networks products
Extreme Optics Compatibility
Other resources such as white papers, data sheets, and case studies
Extreme Networks oers product training courses, both online and in person, as well as specialized
certifications. For details, visit www.extremenetworks.com/education/.
Subscribe to Product Announcements
Preface
10 ExtremeSwitching 5420 Series Hardware Installation Guide
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