[j-nsp] Strange Behavior after ISSU from 13.3R8 to 17.4R1.16

[Mark Tinka]

You're brave soul, trying ISSU at all and what-not...

Mark.

On 28/May/18 04:49, Jeffrey Nikoletich wrote:
> Scratch that. Problem still exist. ☹
>
>
>
>
>
>
>
> *From:* Jeffrey Nikoletich <jeffn at xfernet.com>
> *Sent:* May 27, 2018 07:43 PM
> *To:* juniper-nsp at puck.nether.net
> *Subject:* RE: Strange Behavior after ISSU from 13.3R8 to 17.4R1.16
>
>
>
> All,
>
>
>
> So after I sent this email I noticed a had a rogue rib-group in place. I
> removed that and it seems traffic is fine now. I am testing and will let
> you know.
>
>
>
> Apparently it helps me to email the whole group just to “hopefully” find
> the answer 5 seconds late.
>
>
>
> Thanks,
>
>
>
> Jeffrey Nikoletich
>
>
>
> *From:* Jeffrey Nikoletich <jeffn at xfernet.com>
> *Sent:* May 27, 2018 07:02 PM
> *To:* juniper-nsp at puck.nether.net
> *Subject:* Strange Behavior after ISSU from 13.3R8 to 17.4R1.16
>
>
>
> Hello all,
>
>
>
> So I have been scratching my head at a weird issue I am seeing on only 1 of
> our devices after a ISSU rollout to 17.4. It seems that all peering session
> links are not passing traffic. Here is what I know so far:
>
>
>
>    1. Peering sessions (via exchanges) connect just fine.
>    2. If the exchange is prepended, traffic flows just fine.
>    3. No policy changes were made during the upgrade.
>    4. When looking at the looking glass of direct peers, the next hop is
>    set correctly to our IP on the exchanges.
>    5. Don’t believe it is in interface/card issue as this is a trunk port
>    and transit is working just fine.
>    6. Routes received from peer are fine as well.
>
>
>
> Here is my import and export policies, I  broke them down to extremely
> simple and they still do not work:
>
>
>
> show configuration policy-options policy-statement default-peering-out
>
> term get-routes {
>
>     from {
>
>         prefix-list XXX;
>
>     }
>
>     then {
>
>         community add XXX;
>
>         community add XXXXX;
>
>         accept;
>
>     }
>
> }
>
> term from_bgp_customers {
>
>     from {
>
>         protocol bgp;
>
>         as-path [ XXX-routes XXX-routes XXX-routes ];
>
>     }
>
>     then accept;
>
> }
>
> term others {
>
>     then reject;
>
> }
>
>
>
> show configuration policy-options policy-statement pubpeer-in
>
> term set-consistancy {
>
>     then {
>
>         metric 100;
>
>         local-preference 200;
>
>         community set type_pubpeer;
>
>         next-hop peer-address;
>
>     }
>
> }
>
> then accept;
>
>
>
> Here is a test bgp group I created with just a few peers:
>
>
>
> show configuration protocols bgp group ipv4-xxxx-xxxx-xxxx
>
> type external;
>
> import pubpeer-in;
>
> export default-peering-out;
>
> neighbor 206.53.XXX.XXX {
>
>     description "XXXX";
>
>     family inet {
>
>         unicast {
>
>             prefix-limit {
>
>                 maximum 600;
>
>                 teardown idle-timeout 5;
>
>             }
>
>         }
>
>         any {
>
>             prefix-limit {
>
>                 maximum 1000;
>
>             }
>
>         }
>
>     }
>
>     peer-as XXXX;
>
> }
>
> neighbor 206.53.XXX.XXX {
>
>     description "XXXX";
>
>     family inet {
>
>         unicast {
>
>             prefix-limit {
>
>                 maximum 600;
>
>                 teardown idle-timeout 5;
>
>             }
>
>         }
>
>         any {
>
>             prefix-limit {
>
>                 maximum 1000;
>
>             }
>
>         }
>
>     }
>
>     peer-as XXXX;
>
> }
>
> neighbor 206.53.XXX.XXX {
>
>     description "XXXX.";
>
>     family inet {
>
>         unicast {
>
>             prefix-limit {
>
>                 maximum 1100;
>
>                 teardown idle-timeout 5;
>
>             }
>
>         }
>
>     }
>
>     peer-as XXXX;
>
> }
>
>
>
>
>
> I have a feeling it is something simple and I am just missing it. Any ideas
> or help would be appreciated. Thanks.
>
>
>
> Jeffrey Nikoletich
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