Cisco Systems MGX 8850 Betriebsanweisung PDF herunterladen (Seite 658)

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Cisco MGX 8850 Routing Switch Command Reference

Release 2.0, Part Number 78-10467-04 Rev C0, October 2001

Chapter 9 Troubleshooting Commands

cnfxbarmgmt

Configure Crossbar Management—configure load sharing

The application for is a redundant PXM45 setup. It allows the MGX 8850 to maintain its peak throughput

of 45 Gbps without requiring a switchover to the standby cards if a switch ASIC becomes defective. In

this scheme, one of the switch ASICs on the standby PXM45 takes over the switching for the defective

ASIC on the active PXM45.

Note On an MGX 8850 node, this command applies to Release 2.1 or higher.

Regardless of whether the node has redundant PXM45s or a load-sharing configuration, you can still

investigate alarms and errors through a hierarchy of shelf-management and crossbar-related commands:

1. dspndalms

2. dspswalms

3. dspxbaralm

4. dspxbarerrcnt

Cards on Which This Command Runs

PXM45

Syntax

cnfxbarmgmt

Syntax Description

loadSharing 0 = disable load sharing.

1 = enable load sharing.

However, if a bad switch ASIC already exists, the switch blocks the

command.

–1 = force load sharing to be disabled

when one or more bad switch ASICs exist on the active PXM45.

autoShutdown A 0 disables automatic shut-down. A 1 enables automatic shut-down. The

default is disabled.

planeAlarmThresh An alarm threshold for declaring that a switch plane is bad. Each unit of the

threshold represents a link between the switch ASIC and the card. (The

determination of a bad link depends on the crossbar error threshold.)

If the number of bad links reaches the threshold, the active PXM45 shuts

down the ASIC and shifts the switching load to the standby PXM45. The

range for planeAlarmThresh is 1–32.

1 2 ... 653 654 655 656 657 658 659 660 661 662 663 ... 785 786

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