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Cisco Bug: CSCvt53025 - Slice power-savings config failed to apply after Router VM Reload (reload location all)

Last Modified

Sep 14, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

7.1.2.BASE

Description (partial)

Release Note

Symptom:
Power-savings mode configuration fail observed in any of the following scenarios.

1) 
After configuring slices on a line card in power-savings mode and performing a VM reload (reload location all from XR), we will see a configuration apply failure on bootup. 
The slice shutdown configuration does not get applied and all slices (which are supposed to be in power-savings mode) are powered up.

2)
Configuration of power-savings mode fails after successful commit and the %PLATFORM-APM-3-FAILED log message is observed. Example follows.
<snip>
RP/0/RP1/CPU0:<MSG_timestamp>: psm[434]: %PLATFORM-APM-3-FAILED : 0/14 slice 2 power on failed
<snip>

3)
Configuration of power-savings mode is successful but slice interfaces are not mapped. Example follows for A99-12X100GE Line Card.
- as seen from'show logging' after successful commit.
<snip>
LC/0/14/CPU0:<MSG_timestamp>: psa[295]: %PLATFORM-APM-5-POWER_SAVING_COMPLETE : Slice power-saving configuration is complete for slice 3
LC/0/14/CPU0:<MSG_timestamp>: psa[295]: %PLATFORM-APM-5-POWER_SAVING_COMPLETE : Slice power-saving configuration is complete for slice 4
<snip>

- as seen from 'admin show platform slices'
<snip>
Location    Slice Num   Admin State    Oper State
------------------------------------------------------
<snip>
0/14        0           UP             UP
            1           UP             UP
            2           DOWN           DOWN
            3           UP             UP <<<<<<<< HERE: Slice Up/Up.
            4           UP             UP <<<<<<<< HERE: Slice Up/Up.
            5           DOWN           DOWN
<snip>

- as seen from 'show interface description'
-- missing Hu0/14/0/6 and Hu0/14/0/7 (slice 3)
-- missing Hu0/14/0/8 (slice 4)
<snip>
Hu0/14/0/0         up          up          <interface_description>
Hu0/14/0/1         up          up          <interface_description>
Hu0/14/0/2         admin-down  admin-down
Hu0/14/0/3         up          up          <interface_description>
Hu0/14/0/9         admin-down  admin-down
<snip>

Conditions:
Configuring power-savings mode on a few slices of line card and doing a router VM reload (reload location all).
or 
Configuring power-savings mode after router reload.
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