Specifications

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Cisco MGX 8260 Command Line Interface Guide
Release 1.2, Part Number 78-10987-01 Rev. B0, January, 2002
Chapter 3 Card Management
Configuration Tasks for Cards
The system displays all redundancy pairs:
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Card Redundancy Table (lsreds)
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Primary Slot Secondary Slot
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1 3
5 3
Adding NSC Redundancy
There are two possible NSC redundancy scenarios: with and without DMC.
• NSC redundancy without DMC
This scenario requires a redundant back card in the secondary slot. The back card protects the
primary slots in the event of a primary card failure.
• NSC redundancy with DMC
This scenario does not require, and cannot have, a redundant back card.
Both scenarios require assignment of primary and secondary slot numbers in pairs. The MGX 8260
chassis only supports one secondary slot.
Configuring NSC Redundancy without DMC
To configure NSC redundancy without DMC, follow these steps:
Step 1 Verify that the redundant NSC has a redundancy back card installed and is in the standby state. Enter
the lscd command, specifying the card number, to verify the hardware and status:
Step 2 Verify that each primary, active NSC is in the back card mode and is in the active state. List the
operational status of all cards using the lscds command.
Step 3 Add a redundancy pair using the addreds command, specifying the slots of the primary and secondary
slots.
The primary slot is active during normal operation. The secondary slot is in standby during normal
operation and protects the primary slot in the event of a primary failure.
The following example creates a redundancy pair with slot 1 as primary and slot 3 as secondary:
addreds 1 3
Step 4 Repeat the previous step to assign additional primary slots to the designated secondary slot. Each
MGX 8260 chassis can have only one secondary slot.
Displayed Information Description
Primary Slot The physical slot for the primary card of the redundancy pair
Secondary Slot The physical slot for the secondary card of the redundancy
pair