2-4
Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide
OL-13669-03
Chapter 2 Downgrading Your Cisco CRS-3 Carrier Routing System Router Back to a Cisco CRS-1 Carrier Routing
System Router
Downgrading your Cisco CRS-3 Carrier Routing System 16-Slot Line Card Chassis Back to a Cisco CRS-1 Carrier Routing
System 16-Slot Line Card Chassis
Total number of providers for the statistics: 1
Total received data cells: 7063
Total received unicast data cells: 4487
Total received low priority unicast data cells: 4487
Total received high priority unicast data cells: 0
Total received multicast data cells: 2576
Total received low priority multicast data cells: 2050
Total received high priority multicast data cells: 526
Total transmitted data cells: 21094
Total transmitted unicast data cells: 4487
Total transmitted low priority unicast data cells: 4487
Total transmitted high priority unicast data cells: 0
Total transmitted multicast data cells: 16607
Total transmitted low priority multicast data cells: 13977
Total transmitted high priority multicast data cells: 2630
Total received correctable errored cells: 0
Total received uncorrectable errored cells: 0
Total received parity error cells: 0
Total received stomp cells: 0
Total received kill cells: 0
Total received unknown cells: 0
Total transmitted bogus cells: 4
Total transmitted statically routed control cells: 0
Total transmitted stomp cells: 0
Total transmitted kill cells: 0
Total transmitted ECI cells: 0
Total transmitted LCE cells: 0
Total unicast lost cells: 0
Total multicast lost cells: 0
Total ctb enqueue to off queue cells: 0
Total non-ctb enqueue to off queue cells: 0
Total incoming header error cells: 0
Total incoming data error cells: 0
Total outgoing header error cells: 0
Total outgoing data error cells: 0
Total scs ce error cells: 0
Total scs uce error cells: 0
Last clearing of "show controller fabric plane" counters 00:06:22
• To avoid traffic loss, you must downgrade the switch fabric one plane at a time. To do that, you must
replace each FC-140G/S card with an FC/S card and restore service to that fabric plane before
downgrading the next fabric plane.
• You might want to perform the downgrade during a network maintenance window or when system
traffic is light.
Note Be sure to review the downgrade procedures before deciding when to schedule the
downgrade. That way, you can familiarize yourself with the downgrade procedure and
determine if there are other issues to consider before performing the downgrade.
• We recommend against moving a chassis after it is cabled. Before the fabric cables are installed, the
chassis should be fully installed with power supplies, console cables, grounded, and so forth
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