[GTER] [BGP] Anuncio por duas operadoras

[Ricardo Alves de Oliveira]

Segue configs

interface Loopback0
  ip address X.X.X.1/32
  ipv6 nd suppress-ra

router bgp ZZZZZZ
  bgp router-id X.X.X.1
  bgp log-neighbor-changes
  network X.X.X.0/24
  neighbor EMBRATEL_FR peer-group
  neighbor EMBRATEL_FR remote-as 4230
  neighbor EMBRATEL_FR ebgp-multihop 5
  neighbor EMBRATEL_FR update-source Loopback0
  neighbor EMBRATEL_FR soft-reconfiguration inbound
  neighbor EMBRATEL_FR prefix-list BOGONS in
  neighbor EMBRATEL_FR prefix-list BGPout-IPv4-AS18881 out

  neighbor EMBRATEL_PE peer-group
  neighbor EMBRATEL_PE remote-as 4230
  neighbor EMBRATEL_PE update-source Loopback0
  neighbor EMBRATEL_PE soft-reconfiguration inbound
  neighbor EMBRATEL_PE prefix-list BOGONS in
  neighbor EMBRATEL_PE prefix-list BGPout-IPv4-AS18881 out

  neighbor GVT peer-group
  neighbor GVT remote-as 18881
  neighbor GVT ebgp-multihop 4
  neighbor GVT update-source Loopback0
  neighbor GVT soft-reconfiguration inbound
  neighbor GVT prefix-list BOGONS in
  neighbor GVT prefix-list BGPout-IPv4-AS18881 out


  neighbor Y.Y.Y.Y peer-group GVT
  neighbor W.W.W.W peer-group EMBRATEL_FR
  neighbor Z.Z.Z.Z peer-group EMBRATEL_PE


!
ip prefix-list BGPout-IPv4-AS18881 description Prefixos para GVT
ip prefix-list BGPout-IPv4-AS18881 seq 10 permit 177.129.111.0/24
ip prefix-list BOGONS description Nao receber anuncios invalidos
ip prefix-list BOGONS seq 10 deny 0.0.0.0/8 le 32
ip prefix-list BOGONS seq 15 deny 10.0.0.0/8 le 32
ip prefix-list BOGONS seq 20 deny 127.0.0.0/8 le 32
ip prefix-list BOGONS seq 25 deny 172.16.0.0/12 le 32
ip prefix-list BOGONS seq 30 deny 192.0.2.0/24 le 32
ip prefix-list BOGONS seq 35 deny 192.168.0.0/16 le 32
ip prefix-list BOGONS seq 40 deny 224.0.0.0/3 le 32
ip prefix-list BOGONS seq 1000 deny 177.129.111.0/24 le 32
ip prefix-list BOGONS seq 9999 permit 0.0.0.0/0 le 32
ip prefix-list IPv4-block-deny description Prefixos Gerais Bloquados
ip prefix-list IPv4-block-deny seq 10 permit 0.0.0.0/0
ip prefix-list IPv4-block-deny seq 20 permit 0.0.0.0/8 le 32
ip prefix-list IPv4-block-deny seq 30 permit 127.0.0.0/8 le 32
ip prefix-list IPv4-block-deny seq 40 permit 169.254.0.0/16 le 32
ip prefix-list IPv4-block-deny seq 50 permit 192.0.2.0/24 le 32
ip prefix-list IPv4-block-deny seq 60 permit 192.168.0.0/16 le 32
ip prefix-list IPv4-block-deny seq 70 permit 10.0.0.0/8 le 32
ip prefix-list IPv4-block-deny seq 80 permit 172.16.0.0/12 le 32
ip prefix-list IPv4-block-deny seq 90 permit 177.129.111.0/24
!
route-map BGPin-IPv4-AS18881 deny 20
  match ip address prefix-list IPv4-block-deny


Embratel_PE ---> Partial Routing
Embratel_FR ---> Full Routing



Em 30/07/2013 09:24, Ricardo Alves de Oliveira escreveu:
> Olá pessoal, só mais uma dúvida
> estou com meu quagga configurado com as sessões fechadas com os routers
> e estou anunciando o meu bloco ok.
>
> Porém quando vou em algum looking glass dar uma olhada, sempre vejo 
> somente um caminho
> para o meu bloco, isto é normal ?
>
> pela sprint só vejo o bloco com rota para  a operadora A,
> pela glbx só vejo o bloco com rota para a operadora B,
>
> o correto não seria ver o bloco pelas 2 operadoras e um best path para 
> alguma delas ?
> to achando meio estranho isto, é normal ?
>
> Obrigado
> -- 
> gter list    https://eng.registro.br/mailman/listinfo/gter
>