[c-nsp] spanning-tree for local switching on ASR920

[Peter Rathlev]

For what it's worth I have working Rapid PVST+ on ARS 920 IOS 16.7.1
with the following configuration:

spanning-tree mode rapid-pvst
spanning-tree vlan 2,10,2302 priority 24576
!
interface TenGigabitEthernet0/0/25
 description => Towards HP 5700FF
 mtu 9216
 no ip address
 load-interval 30
 service instance 1 ethernet
  encapsulation untagged
  l2protocol peer cdp stp lldp
  bridge-domain 4093
 !
 service instance trunk 25 ethernet
  encapsulation dot1q 2,10
  rewrite ingress tag pop 1 symmetric
  bridge-domain from-encapsulation
 !
!
interface TenGigabitEthernet0/0/26
 description => Towards neighbor ASR 920
 mtu 9216
 no ip address
 service instance 1 ethernet
  encapsulation untagged
  l2protocol peer cdp stp lldp
  bridge-domain 4094
 !
 service instance trunk 26 ethernet
  encapsulation dot1q 2,10,2302
  rewrite ingress tag pop 1 symmetric
  bridge-domain from-encapsulation
 !
!

This is of course not directly related to your question about untagged
ports. I don't have setup where I can test that right now. But at least
the ASR 920 seems to support RPVST fine in IOS 16.7.

-- 
Peter