Mailing List Archive

On-box SR-TE with Admin Groups
Hi all,

I'm having trouble getting it up. You can see my lab topology below. I have
an ingress router (green) specifying _include-any RED_ in an SR policy to
reach the egress node (red). I come to you after many failed efforts and
knob twiddling. Static ERO SR-TE LSPs pass traffic without fail.

The traceoptions logs aren't particularly meaningful to me, but maybe error
3 means something to someone here.

Jan 11 15:31:18.380311 SRCS:received compute-response message
Jan 11 15:31:18.380322 SRCS:received comp-response for request_id:1 with
error_code :1
Jan 11 15:31:20.393280 SRCS:received comp-notify for request_id:1, with
error:3, state_retained:0 num_results:0
Jan 11 15:31:20.393298 SRCS:Updating compute-results for
tunnel:static-BA2-DCA1_RA1-DAL2, lsp:ADMINGROUP with request_id:1
Jan 11 15:31:20.393303 RPD_SPRING_TE_COMPUTE_LSP_COMPUTE_FAIL: SR-TE
Policy: Computation failed for source-routing-path:BA2-DCA1_RA1-DAL2,
primary-segment:ADMINGROUP

I can provide config if needed, but I didn't want to start with an overload
of information.

Junos 21.1R2 network wide
RSVP deployed network wide (is this the only way to get admin groups into
the TED?)
All backbone interfaces in protocols mpls

###Ingress Router Config
set logical-systems ba2-dca1 protocols mpls admin-groups RED 1
set logical-systems ba2-dca1 protocols source-packet-routing
compute-profile RED admin-group include-any RED
set logical-systems ba2-dca1 protocols source-packet-routing
source-routing-path BA2-DCA1_RA1-DAL2 to 10.0.1.13
set logical-systems ba2-dca1 protocols source-packet-routing
source-routing-path BA2-DCA1_RA1-DAL2 primary ADMINGROUP compute RED

###Red LSR
set logical-systems ba1-dca1 protocols mpls admin-groups RED 1
set logical-systems ba1-dca1 protocols mpls interface et-1/1/2.8
admin-group RED

Topology: https://i.imgur.com/QQBB4c2.png

Thanks for any assistance you can provide,

Jason
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Re: On-box SR-TE with Admin Groups [ In reply to ]
FYI,

The check here is:
show ted database topology-type l3-unicast
show ted link topology-type l3-unicast

If empty, do:
set protocols isis traffic-engineering l3-unicast-topology
set protocols isis traffic-engineering advertisement always

Thank you Colby!

Jason

On Tue, Jan 11, 2022 at 12:02 PM Jason Iannone <jason.iannone@gmail.com>
wrote:

> Hi all,
>
> I'm having trouble getting it up. You can see my lab topology below. I
> have an ingress router (green) specifying _include-any RED_ in an SR policy
> to reach the egress node (red). I come to you after many failed efforts and
> knob twiddling. Static ERO SR-TE LSPs pass traffic without fail.
>
> The traceoptions logs aren't particularly meaningful to me, but maybe
> error 3 means something to someone here.
>
> Jan 11 15:31:18.380311 SRCS:received compute-response message
> Jan 11 15:31:18.380322 SRCS:received comp-response for request_id:1 with
> error_code :1
> Jan 11 15:31:20.393280 SRCS:received comp-notify for request_id:1, with
> error:3, state_retained:0 num_results:0
> Jan 11 15:31:20.393298 SRCS:Updating compute-results for
> tunnel:static-BA2-DCA1_RA1-DAL2, lsp:ADMINGROUP with request_id:1
> Jan 11 15:31:20.393303 RPD_SPRING_TE_COMPUTE_LSP_COMPUTE_FAIL: SR-TE
> Policy: Computation failed for source-routing-path:BA2-DCA1_RA1-DAL2,
> primary-segment:ADMINGROUP
>
> I can provide config if needed, but I didn't want to start with an
> overload of information.
>
> Junos 21.1R2 network wide
> RSVP deployed network wide (is this the only way to get admin groups into
> the TED?)
> All backbone interfaces in protocols mpls
>
> ###Ingress Router Config
> set logical-systems ba2-dca1 protocols mpls admin-groups RED 1
> set logical-systems ba2-dca1 protocols source-packet-routing
> compute-profile RED admin-group include-any RED
> set logical-systems ba2-dca1 protocols source-packet-routing
> source-routing-path BA2-DCA1_RA1-DAL2 to 10.0.1.13
> set logical-systems ba2-dca1 protocols source-packet-routing
> source-routing-path BA2-DCA1_RA1-DAL2 primary ADMINGROUP compute RED
>
> ###Red LSR
> set logical-systems ba1-dca1 protocols mpls admin-groups RED 1
> set logical-systems ba1-dca1 protocols mpls interface et-1/1/2.8
> admin-group RED
>
> Topology: https://i.imgur.com/QQBB4c2.png
>
> Thanks for any assistance you can provide,
>
> Jason
>
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