Troubleshooting guide

3-13
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 3 Initial Troubleshooting
Troubleshooting Processor Redundancy and EHSA (Catalyst 8540 CSR and Catalyst 8540 MSR)
Note You can only enter the reprogram command from the console session prompt.
If you determine that you need to upgrade your functional image, refer to the Cisco.com web page, and
follow these steps to find and download the functional image you need:
Step 1 Login to the Cisco.com; the window will change and display additional features.
Step 2 Under Service and Support, select Software Center.
Step 3 The Technical Assistance Center page is displayed. Under Software Products & Downloads, select LAN
Switching Products
Step 4 From the list of platforms, select one of the following:
– “C8510M” (for Catalyst 8510 MSR platforms)—
http://www.cisco.com/cgi-bin/tablebuild.pl/cat8510m-fpga
– “C8540M” (for Catalyst 8540 MSR platforms)—
http://www.cisco.com/cgi-bin/tablebuild.pl/cat8540m-fpga
– “C8510C” (for Catalyst 8510 CSR platforms)—
http://www.cisco.com/cgi-bin/tablebuild.pl/cat8510c-fpga
– “C8540C” (for Catalyst 8540 CSR platforms)—
http://www.cisco.com/cgi-bin/tablebuild.pl/cat8540c-fpga
Step 5 At the top of the page is a note with a link to the functional images. Select the link “Functional Software”
available and a list of the functional images available appears.
Step 6 From the list select a file to download.
Note After you have determined the hardware and software versions on the switch router, check the release
notes and DDTS database for symptoms resembling those you are observing. Often, the problem has
already been discovered and a workaround has been provided.
Troubleshooting Processor Redundancy and EHSA
(Catalyst 8540 CSR and Catalyst 8540 MSR)
The Catalyst 8540 MSR and Catalyst 8540 CSR support, redundant route processor operation with dual
route processors. In addition, Enhanced High System Availability (EHSA) is provided in the switching
fabric when three switch processors are installed in the chassis. The troubleshooting processes for these
features are described in the following sections:
• Route Processor Redundant Operation (Catalyst 8540 CSR and Catalyst 8540 MSR), page 3-13
• Troubleshooting Route Processor Redundancy (Catalyst 8540 CSR and Catalyst 8540 MSR), page
3-13
• Troubleshooting Switch Processor Redundancy with HSRP (Catalyst 8540 CSR and
Catalyst 8540 MSR), page 3-17