NV Edge interface fatal condition

jacobrb · ‎08-19-2024

Hi all,

I have a pair of ASR 9001's running IOS-XR 6.9.2 (no longer have SmartNet) that I'm attempting to setup in an NV Edge Cluster following this guide.

Cluster ports are active, and the backup ASR has booted, synced, and joined the cluster. I can see the ports in show int and both chassis are there in show chassis and show dsc. The package asr9k-9000v-nV-px-6.9.2 is active.

However, when I try to create the iRL's I get rejected, this is true for both the built-in ports as well as the linecard ports (A9K-MPA-4x10GE) - any advice is appreciated:

RP/0/RSP0/CPU0:XXX#show run interface TenGigE0/0/2/3
Mon Aug 19 14:48:06.388 UTC

interface TenGigE0/0/2/3

shutdown

!

RP/0/RSP0/CPU0:XXX#conf t

Mon Aug 19 14:48:10.622 UTC
RP/0/RSP0/CPU0:XXX(config)#interface TenGigE0/0/2/3

RP/0/RSP0/CPU0:XXX(config-if)#nv edge interface
RP/0/RSP0/CPU0:XXX(config-if)#no shutdown
RP/0/RSP0/CPU0:XXX(config-if)#commit
Mon Aug 19 14:48:42.286 UTC

% 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:XXX(config-if)#show configuration failed
Mon Aug 19 14:48:46.375 UTC
!! SEMANTIC ERRORS: This configuration was rejected by
!! the system due to semantic errors. The individual
!! errors with each failed configuration command can be
!! found below.

interface TenGigE0/0/2/3
nv
edge
interface
!!% 'CfgMgr' detected the 'fatal' condition 'This configuration has not been verified and can not be accepted by the system.'
!
!
!
end

RP/0/RSP0/CPU0:XXX(config-if)#

Giuseppe Larosa · ‎08-19-2024

Hello @jacobrb ,

the reference document written by @xthuis Cisco expert refers to IOS XR version

>> Take note of the general release recommendation which at the time of writing is XR 4.2.3

Now your devices are running IOS XR 6.9.2

also check your hardware

>> Only Typhoon and Thor line cards supported in the chassis, Tridents will not work

>>

Only Typhoon 10Gig links allowed as IRLs
Only same chassis types can be connected to form an nV edge system
Only Cisco supported SFPs allowed for all inter-rack connections
The RSP front panel control plane SFPs HAVE TO BE 1GIG SFPs. 10Gig SFPs are NOT supported.
The RSP front panel control plane SFPs MUST be SFP-GE-S (4.2.1+) or SFP-SX-MM (4.3.0+). No other optics are officially supported.

Edit:

refer to the following document to understand the different types of linecards :

https://www.cisco.com/c/en/us/support/docs/routers/asr-9000-series-aggregation-services-routers/116726-qanda-product-00.html

Edit 2:

the feature has been removed

Please note- “IOS XR 5.3.x is the last supported release for nV cluster”

https://www.cisco.com/c/en/us/products/collateral/routers/asr-9000-series-aggregation-services-routers/eos-eol-notice-c51-739355.html

This why your configuration is not accepted.

You cannot build an NV edge cluster in IOS XR 6.9.2

Hope to help

Giuseppe

jacobrb · ‎08-19-2024

Hi Giuseppe,

Thanks so much for getting back to me. Yes, that article is quite old, however I've been unable to find anything newer. I obviously do not want to run a 4.x IOS-XR release since it's so old.

Confirmed hardware is fine. Using genuine Cisco optics. The cluster links are fine, and it has clustered - so I don't believe that's the issue. I have tried the iRL's in both the MPA and built-in ports, so don't believe it's a trident issue.

Any other thoughts or ideas?

Giuseppe Larosa · ‎08-19-2024