[c-nsp] MPLS TE explicit-path: secondary ip as next-address

[Eduard Metz]

Not sure, but could it be that OSPF marks secondary subnets as
"stub-networks" in the database. I can imagine this would prevent TE it
from using it as a transit link. Again, not sure. Can you setup a tunnel
with a secondary IP as start- or end-point of the tunnel (not transit)?

/Eduard


On Tue, Feb 5, 2013 at 11:03 AM, Artyom Viklenko <artem at viklenko.net> wrote:

> 05.02.2013 10:30, sthaug at nethelp.no пишет:
>
>  New ip addresses was configured as secondary on interfaces in question.
>>> These new subnets (/30) appear in routing table, cef, etc. Network
>>> statement also was added to ospf configuration.
>>>
>>
>> Note that it at least *used* to be the case that OSPF wouldn't form
>> adjacencies over secondary addresses. I don't know if this limitation
>> still holds, but it could be relevant to your case.
>>
>>
> Hm...
>
> #sh ip cef adjacency vlan YYY x.x.x.x internal
> IPv4 CEF is enabled for distributed and running
> VRF Default
>  438397 prefixes (438388/9 fwd/non-fwd)
>  Table id 0x0
>  Database epoch:        6 (438397 entries at this epoch)
>
> x.x.x.x/32, epoch 6, flags attached, refcount 4, per-destination sharing
>   sources: Adj
>   feature space:
>    NetFlow: Origin AS 0, Peer AS 0, Mask Bits 30
>   subblocks:
>    Adj source: IP adj out of VlanYYY, addr x.x.x.x 19450140
>     Dependent covered prefix type adjfib cover x.x.x.z/30
>   ifnums:
>    VlanYYY(223): x.x.x.x
>   path 355B320C, path list 3852540C, share 1/1, type adjacency prefix, for
> IPv4
>   attached to VlanYYY, adjacency IP adj out of Vlan358, addr x.x.x.x
> 19450140
>   output chain: IP adj out of VlanYYY, addr x.x.x.x 19450140
>
> But it doesn't in  output of 'show mpls traffic-eng topology' like any
> other secondary subnets. This lead to errors establishing path.
>
> debug shows: TE-PCALC_PATH: create_path_hoplist:ip addr x.x.x.x unknown.
>
>
>
> --
> Sincerely yours,
>  Artyom Viklenko.
> ______________________________**_________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/**mailman/listinfo/cisco-nsp<https://puck.nether.net/mailman/listinfo/cisco-nsp>
> archive at http://puck.nether.net/**pipermail/cisco-nsp/<http://puck.nether.net/pipermail/cisco-nsp/>
>