High Availability Using Line Card Redundancy - Cisco 10000 Series Configuration Manual

High Availability Using Line Card Redundancy

High Availability Using Line Card Redundancy
You can configure one-to-one line card redundancy using the optional Y-cables and configuring 4-Port
Channelized T3 Half-Height line cards for redundancy. This redundancy provides automatic failover
protection at the line card level for the 4-Port Channelized T3 Half-Height line card. Because the
redundancy is at the line card level, all ports are switched over during a failover.
The redundant line cards occupy the two subslots within the same chassis line card slot. There is one
Y-cable for receive and one for transmit for each of the four ports for the two redundant line cards. For
information about installing redundant 4-Port Channelized T3 Half-Height line cards and the Y-cables,
see the
This section contains the following topics:
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Prerequisites for Line Card Redundancy
Before configuring line card redundancy, the Y-cables must be installed; before deconfiguring
redundancy the Y-cables must be removed.
Restrictions for Line Card Redundancy
The following restrictions apply to line card redundancy:
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Configuring Line Card Redundancy
After verifying that the Y-cables are installed, you are ready to configure one-to-one redundancy
between two 4-Port Channelized T3 Half-Height line cards. To configure line card redundancy, enter the
following commands beginning in global configuration mode:
Cisco 10000 Series Router Line Card Configuaration Guide
4-24
Cisco 10000 Series Router Line Card Hardware Installation
Prerequisites for Line Card Redundancy, page 4-24
Restrictions for Line Card Redundancy, page 4-24
Configuring Line Card Redundancy, page 4-24
Verifying and Monitoring Line Card Redundancy, page 4-25
Performing a Manual Line Card Switchover, page 4-29
Removing Line Card Redundancy, page 4-29
Failover Conditions, page 4-30
Port-level redundancy is not supported.
Redundant cards must occupy the two subslots within the same physical line card slot.
The line card that will act as the primary line card must be the first line card configured, and it must
occupy subslot 1.
Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration
Guide.
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