[c-nsp] ASR 9010 BNG setup

[Scott Miller]

Hello all. We have an ASR9010 we're using as a PE router, and we'd like to
migrate our PPPoE off of an ASR1002x onto the 9010.  Reading the
documentation here:

https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k-r6-4/bng/configuration/guide/b-bng-cg-asr9000-64x/b-bng-cg-asr9000-64x_chapter_011.html


 on the Configuring RADIUS Server Group section, I enter the following, but
get an error:

RP/0/RSP0/CPU0:asbr1.kalhoc#config t
Fri Apr 24 13:13:47.801 MDT
RP/0/RSP0/CPU0:asbr1.kalhoc(config)#aaa group server radius RADIUS_SERVER
RP/0/RSP0/CPU0:asbr1.kalhoc(config-sg-radius)# deadtime 40
RP/0/RSP0/CPU0:asbr1.kalhoc(config-sg-radius)# source-interface Loopback1
RP/0/RSP0/CPU0:asbr1.kalhoc(config-sg-radius)#server xx.xx.xx.xx auth-port
1812 acct-port 1813
RP/0/RSP0/CPU0:asbr1.kalhoc(config-sg-radius)#commit
Fri Apr 24 13:13:58.996 MDT

% Failed to commit one or more configuration items during a pseudo-atomic
operation. All changes made have been reverted. Please issue 'show
configuration failed [inheritance]' from this session to view the errors
RP/0/RSP0/CPU0:asbr1.kalhoc(config-sg-radius)#

if I remove the server IP line, it commits fine, but I can't add anything
else under the  aaa group server radius RADIUS_SERVER config.  I see in the
error it's an "inheritance" issue, but not seeing what I'm missing.
Following the doc top down.  And yes, Loopback1 does exist.

show config:
!
aaa group server radius RADIUS_SERVER
 deadtime 40
 source-interface Loopback1
!

Cisco ASR9010
Version 6.4.2
RSP440-SE
RP/0/RSP0/CPU0:asbr1.kalhoc#show install active
Fri Apr 24 13:16:10.341 MDT
Secure Domain Router: Owner

  Node 0/RSP0/CPU0 [RP] [SDR: Owner]
    Boot Device: disk0:
    Boot Image:
/disk0/asr9k-os-mbi-6.4.2.CSCvj68649-1.0.0/0x100305/mbiasr9k-rsp3.vm
    Active Packages:
      disk0:asr9k-services-infra-6.4.2
      disk0:asr9k-bng-px-6.4.2
      disk0:asr9k-doc-px-6.4.2
      disk0:asr9k-fpd-px-6.4.2
      disk0:asr9k-li-px-6.4.2
      disk0:asr9k-mcast-px-6.4.2
      disk0:asr9k-mgbl-px-6.4.2
      disk0:asr9k-mini-px-6.4.2
      disk0:asr9k-mpls-px-6.4.2
      disk0:asr9k-optic-px-6.4.2
      disk0:asr9k-services-px-6.4.2
      disk0:asr9k-video-px-6.4.2
      disk0:asr9k-k9sec-px-6.4.2
      disk0:asr9k-px-6.4.2.CSCvh04484-1.0.0
      disk0:asr9k-px-6.4.2.CSCvi41352-1.0.0
      disk0:asr9k-px-6.4.2.CSCvj53644-1.0.0
      disk0:asr9k-px-6.4.2.CSCvj60378-1.0.0
      disk0:asr9k-px-6.4.2.CSCvj68649-1.0.0
      disk0:asr9k-px-6.4.2.CSCvk28954-1.0.0
      disk0:asr9k-px-6.4.2.CSCvk68799-1.0.0
      disk0:asr9k-px-6.4.2.CSCvm95530-1.0.0
      disk0:asr9k-px-6.4.2.CSCvn15572-1.0.0
      disk0:asr9k-px-6.4.2.CSCvn20544-1.0.0
      disk0:asr9k-px-6.4.2.CSCvn71097-1.0.0
      disk0:asr9k-px-6.4.2.CSCvn81268-1.0.0
      disk0:asr9k-px-6.4.2.CSCvn92927-1.0.0
      disk0:asr9k-px-6.4.2.CSCvn95386-1.0.0
      disk0:asr9k-px-6.4.2.CSCvo03672-1.0.0
      disk0:asr9k-px-6.4.2.CSCvo42210-1.0.0
      disk0:asr9k-px-6.4.2.CSCvo43692-1.0.0
      disk0:asr9k-px-6.4.2.CSCvo47563-1.0.0
      disk0:asr9k-px-6.4.2.CSCvo48401-1.0.0
      disk0:asr9k-px-6.4.2.CSCvo64374-1.0.0
      disk0:asr9k-px-6.4.2.CSCvo90073-1.0.0
      disk0:asr9k-px-6.4.2.CSCvp25269-1.0.0
      disk0:asr9k-px-6.4.2.CSCvp52020-1.0.0
      disk0:asr9k-px-6.4.2.CSCvp53808-1.0.0
      disk0:asr9k-px-6.4.2.CSCvq07763-1.0.0
      disk0:asr9k-px-6.4.2.CSCvq08552-1.0.0
      disk0:asr9k-px-6.4.2.CSCvq27252-1.0.0
      disk0:asr9k-px-6.4.2.CSCvq41820-1.0.0
      disk0:asr9k-px-6.4.2.CSCvq55791-1.0.0
      disk0:asr9k-px-6.4.2.CSCvq61177-1.0.0
      disk0:asr9k-px-6.4.2.CSCvq75447-1.0.0
      disk0:asr9k-px-6.4.2.CSCvr23452-1.0.0
      disk0:asr9k-px-6.4.2.CSCvr29912-1.0.0
      disk0:asr9k-px-6.4.2.CSCvr58491-1.0.0
      disk0:asr9k-px-6.4.2.CSCvr62647-1.0.0
      disk0:asr9k-px-6.4.2.CSCvs00535-1.0.0
      disk0:asr9k-px-6.4.2.CSCvs03903-1.0.0

Any help in where I'm going wrong already would be greatly appreciated.

Scott