sandbox - segment routing

kristina — Wed, 27 Nov 2019 19:48:32 GMT

I'm trying to configure SR on ios-xrv in VIRL - using OSPF, but get an error when I try to specify SIDs:

RP/0/0/CPU0:ios(config-ospf-ar)#prefix-sid index 1001
^
% Invalid input detected at '^' marker.
RP/0/0/CPU0:ios(config-ospf-ar)#prefix-sid absolute 17001
^
% Invalid input detected at '^' marker.
RP/0/0/CPU0:ios(config-ospf-ar)#

How do I move past this issue? Or, any useful docs to be pointed to for SR config for ospf, or is-is?

I tried deploying 5 ios-xrv nodes, only did config for ospf on one of the nodes:

I still cannot use the SID command.

VIRL topology from Maestro - attached image.

Tried configuration for iosxrv-1

I brought up the two interfaces:

interfaces gigabitEthernet 0/0/0/1 and 0/0/0/1

RP/0/0/CPU0:ios(config-if)#interface gigabitEthernet 0/0/0/0

RP/0/0/CPU0:ios(config-if)#ipv4 address 192.168.20.11/24

RP/0/0/CPU0:ios(config-if)#no shut

RP/0/0/CPU0:ios(config-if)#interface gigabitEthernet 0/0/0/1

RP/0/0/CPU0:ios(config-if)#ipv4 address 192.168.30.11/24

RP/0/0/CPU0:ios(config-if)#no shut

RP/0/0/CPU0:ios(config-if)#commit

Wed Nov 27 19:13:58.558 UTC

RP/0/0/CPU0:Nov 27 19:13:58.578 : ifmgr[228]: %PKT_INFRA-LINK-3-UPDOWN : Interface GigabitEthernet0/0/0/1, changed state to Down

RP/0/0/CPU0:ios(config-if)#RP/0/0/CPU0:Nov 27 19:13:58.578 : ifmgr[228]: %PKT_INFRA-LINK-3-UPDOWN : Interface GigabitEthernet0/0/0/0, changed state to Down

RP/0/0/CPU0:Nov 27 19:13:58.608 : ifmgr[228]: %PKT_INFRA-LINK-3-UPDOWN : Interface GigabitEthernet0/0/0/1, changed state to Up

RP/0/0/CPU0:Nov 27 19:13:58.608 : ifmgr[228]: %PKT_INFRA-LINK-3-UPDOWN : Interface GigabitEthernet0/0/0/0, changed state to Up

RP/0/0/CPU0:ios(config-if)#exit

RP/0/0/CPU0:ios(config)#exit

RP/0/0/CPU0:ios#sh ip int br

Wed Nov 27 19:14:28.276 UTC

Interface IP-Address Status Protocol Vrf-Name

MgmtEth0/0/CPU0/0 unassigned Shutdown Down default

GigabitEthernet0/0/0/0 192.168.20.11 Up Up default

GigabitEthernet0/0/0/1 192.168.30.11 Up Up default

Next, I configured OSPF using:

https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-1/routing/configuration/guide/routing_cg41crs_chapter4.pdf

RP/0/0/CPU0:ios#configure

Wed Nov 27 19:14:42.265 UTC

RP/0/0/CPU0:ios(config)#router ospf 0

RP/0/0/CPU0:ios(config-ospf)#router-id 192.168.10.1

RP/0/0/CPU0:ios(config-ospf)#area 0

RP/0/0/CPU0:ios(config-ospf-ar)#interface gigabitEthernet 0/0/0/0

RP/0/0/CPU0:ios(config-ospf-ar-if)#interface gigabitEthernet 0/0/0/1

RP/0/0/CPU0:ios(config-ospf-ar-if)#log adjacency changes detail

RP/0/0/CPU0:ios(config-ospf)#commit

Wed Nov 27 19:15:13.563 UTC

RP/0/0/CPU0:ios(config-ospf)#end

Worked fine:

RP/0/0/CPU0:ios#sh ip proto

Wed Nov 27 19:15:22.712 UTC

Routing Protocol OSPF 0

Router Id: 192.168.10.1

Distance: 110

Non-Stop Forwarding: Disabled

Redistribution:

None

Area 0

GigabitEthernet0/0/0/0

GigabitEthernet0/0/0/1

Next, I tried to do SR with OSPF using:

https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/segment-routing/configuration/guide/b-seg-routing-cg-asr9k/b-seg-routing-cg-asr9k_chapter_0110.html

But, it does not work - see below errors:

RP/0/0/CPU0:ios#configure

Wed Nov 27 19:15:31.322 UTC

RP/0/0/CPU0:ios(config)#router ospf 0

RP/0/0/CPU0:ios(config-ospf)#segment-routing mpls

RP/0/0/CPU0:ios(config-ospf)#area 0

RP/0/0/CPU0:ios(config-ospf-ar)#mpls traffic-eng area 0

% Invalid input detected at '^' marker.

RP/0/0/CPU0:ios(config-ospf-ar)#mpls traffic-eng ?

<cr>

Not sure what <cr> pertains to,

Skipped to next command according to the conf. example:

RP/0/0/CPU0:ios(config-ospf-ar)#mpls traffic-eng router-id Loopback0

RP/0/0/CPU0:ios(config-ospf)#segment-routing mpls

RP/0/0/CPU0:ios(config-ospf)#area 0

RP/0/0/CPU0:ios(config-ospf-ar)#exit

RP/0/0/CPU0:ios(config-ospf)#exit

RP/0/0/CPU0:ios(config)#mpls traffic-eng

RP/0/0/CPU0:ios(config-mpls-te)#commit

Wed Nov 27 19:16:44.467 UTC

RP/0/0/CPU0:ios(config-mpls-te)#end

RP/0/0/CPU0:ios#sh ip proto

Wed Nov 27 19:16:56.126 UTC

Routing Protocol OSPF 0

Router Id: 192.168.10.1

Distance: 110

Non-Stop Forwarding: Disabled

Redistribution:

None

Area 0

GigabitEthernet0/0/0/0

GigabitEthernet0/0/0/1

RP/0/0/CPU0:ios#configure

Wed Nov 27 19:17:06.125 UTC

RP/0/0/CPU0:ios(config)#router ospf 0

RP/0/0/CPU0:ios(config-ospf)#area 0

RP/0/0/CPU0:ios(config-ospf-ar)#interface Loopback0 passive

RP/0/0/CPU0:ios(config-ospf-ar)#prefix-sid index 1001

% Invalid input detected at '^' marker.

RP/0/0/CPU0:ios(config-ospf-ar)#prefix-sid absolute 17001

% Invalid input detected at '^' marker.

Does not accept specifying SIDs, not sure if related to the previous command that failed (mpls traffic-eng area 0)

RP/0/0/CPU0:ios(config-ospf-ar)#commit

Wed Nov 27 19:17:34.733 UTC

RP/0/0/CPU0:ios(config-ospf-ar)#end

Thank you,

kristina

Re: sandbox - segment routing

bigevilbeard — Thu, 28 Nov 2019 08:18:22 GMT

Hello,

<cr> this means 'carriage return' (old terms for press enter/return) there is no further options for this syntax.

I would guess the reason you cannot implement this is due to missing active packages on the XR routers or the image version that is installed does support this feature.

Hope that helps.

Re: sandbox - segment routing

kristina — Thu, 28 Nov 2019 14:59:34 GMT

Thank you for the reply.

Which image should I be using to get support for segment routing.
Specifically, using the VIRL sandbox - are there any images that support SR?

Re: sandbox - segment routing

bigevilbeard — Thu, 28 Nov 2019 16:30:28 GMT

Ok thanks for confirming you are using the devnet sandbox, let me check this and revert back to you once i have checked.

Thanks!

Re: sandbox - segment routing

bigevilbeard — Tue, 03 Dec 2019 12:12:15 GMT

Sorry for the delay in update here, i am checking with the XR team if sunstone image supports SR, if so which one(s).

Re: sandbox - segment routing

kristina — Tue, 03 Dec 2019 16:09:34 GMT

Thank you.

Re: sandbox - segment routing

kristina — Thu, 05 Dec 2019 20:30:17 GMT

While waiting for the update, do you know if the sandbox has an NCS image?

If so, I believe that one should support SR?

thank you,

Re: sandbox - segment routing

bigevilbeard — Fri, 06 Dec 2019 10:51:11 GMT

Hey there, there is no NCS image in the mutli-ios virl sandbox.

Re: sandbox - segment routing

kristina — Thu, 19 Dec 2019 17:10:14 GMT

Hi, is there any update in terms of SR support for the sandbox env?

Re: sandbox - segment routing

bigevilbeard — Fri, 20 Dec 2019 18:26:54 GMT

Hey there, sadly no reply yet. I will reach out directly with them after the holiday period.

Re: sandbox - segment routing

bigevilbeard — Fri, 03 Jan 2020 15:15:15 GMT

Sorry for delays in reply here. Having checked upstream, SR support for XRv9000 is not officially supported right now. This _might_ change in due course on future releases.

Re: sandbox - segment routing

kristina — Fri, 03 Jan 2020 16:05:55 GMT

Hi,

Is there any OS that is available and that supports SR in the sandbox env? Or, in VIRL?

Re: sandbox - segment routing

bigevilbeard — Fri, 03 Jan 2020 16:57:35 GMT

In this case, sadly no there is not at this time.

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