[GTER] Vogel (AS 25933) vazando rotas no ATM do IX.br SP

[Humberto Galiza]

Olá pessoal,

Alguém da Vogel (AS 25933) na lista? Aparentemente desde as ~18h de
hoje vocês tem anunciado diversos prefixos da Level3, Lan Nautilus,
CloudFlare e etc, no ATM do PTT-SP.

Notei que os anúncios "aparecem" e "somem" de tempos em tempos
(imagino que estejam sendo enviados aos route-servers, e quando o
limite de prefixos é atingido, então a sessão BGP vai abaixo causando
withdraw nas rotas).

Abaixo um exemplo de prefixos retirado de um router conectado ao ATM
do PTT-SP por volta das 20:30h de hoje. Espero que ajude a equipe no
troubleshooting:

(...)
> show route aspath-regex ".* 25933 .*"

inet.0: 711324 destinations, 1700427 routes (711314 active, 0
holddown, 967 hidden)
+ = Active Route, - = Last Active, * = Both

1.0.0.0/24          [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 6762 13335 13335 I,
validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.16.0/24        *[BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 2516 2519 I,
validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.64.0/18         [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 2516 7670 18144 I,
validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.128.0/17        [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 3356 38040 23969 I,
validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.128.0/18        [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 3356 38040 23969 I,
validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.128.0/19        [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 3356 38040 23969 I,
validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.128.0/24        [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 3356 4134 4809 38040 23969
I, validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.131.0/24        [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 3356 4134 4809 38040 23969
I, validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.139.0/24        [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 3356 4134 4809 38040 23969
I, validation-state: unverified
                    > to 187.16.223.99 via ae2.3181
1.0.160.0/19        [BGP/170] 00:00:02, MED 20, localpref 200, from
187.16.223.254
                      AS path: 25933 3549 3356 38040 23969 I,
validation-state: unverified
(...)

Abs,

Humberto Galiza