Cisco CRS-1 - Carrier Routing System Router

2-5
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
Administratively Disabling the Fabric Plane
Please note that these steps are to be performed for each Cisco Crs-3 Fabric Card one at a time. When
one Fabric Node has completed the downgrade process we should come back to this step for the next
Fabric Node, until all 8 Fabrics have been downgraded.
As a first step in the downgrade process, we administratively shutdown the fabric plane that is to be
downgraded. This takes the fabric out of traffic operation, the router now continues to forward traffic on
the remaining 7 planes – there should not be any traffic drop.
RP/0/RP0/CPU0:router#admin
RP/0/RP0/CPU0:router(admin)#config
RP/0/RP0/CPU0:router(admin-config)#controller fabric plane 0 shut
RP/0/RP0/CPU0:router(admin-config)#commit
Verify that fabric plane is now Admin-state Down.
RP/0/RP0/CPU0:router(admin)#show controllers fabric plane all
Plane Admin Oper up->dn up->mcast
Id State State counter counter
---------------------------------------------
0 DOWN DOWN 1 0
1 UP UP 0 0
2 UP UP 0 0
3 UP UP 0 0
4 UP UP 0 0
5 UP UP 0 0
6 UP UP 0 0
7 UP UP 0 0
Power Disable the Cisco CRS-3 Fabric Card
Next, we disable power to the Fabric node, and verify that node is moved to “UNPOWERED” state.
RP/0/RP0/CPU0:router#admin
RP/0/RP0/CPU0:router(admin)#config
RP/0/RP0/CPU0:router(admin-config)#hw-module power disable loc 0/SM0/SP
RP/0/RP0/CPU0:router(admin-config)#commit
RP/0/RP0/CPU0:router(admin)#show platform
Node Type PLIM State Config State
<snip>
0/SM0/SP FC-140G/S N/A UNPOWERED PWR,NSHUT,MON
0/SM1/SP FC-140G/S N/A IOS XR RUN PWR,NSHUT,MON
0/SM2/SP FC-140G/S N/A IOS XR RUN PWR,NSHUT,MON
0/SM3/SP FC-140G/S N/A IOS XR RUN PWR,NSHUT,MON
0/SM4/SP FC-140G/S N/A IOS XR RUN PWR,NSHUT,MON
0/SM5/SP FC-140G/S N/A IOS XR RUN PWR,NSHUT,MON
0/SM6/SP FC-140G/S N/A IOS XR RUN PWR,NSHUT,MON
0/SM7/SP FC-140G/S N/A IOS XR RUN PWR,NSHUT,MON
<snip>