func GetAfiSafi(p *Neighbor, family bgp.RouteFamily) *AfiSafi {
for _, a := range p.AfiSafis {
if string(a.Config.AfiSafiName) == family.String() {
return &a
}
}
return nil
}
func (peer *Peer) doPrefixLimit(k bgp.RouteFamily, c *config.PrefixLimitConfig) *bgp.BGPMessage {
if maxPrefixes := int(c.MaxPrefixes); maxPrefixes > 0 {
count := peer.adjRibIn.Count([]bgp.RouteFamily{k})
pct := int(c.ShutdownThresholdPct)
if pct > 0 && !peer.prefixLimitWarned[k] && count > (maxPrefixes*pct/100) {
peer.prefixLimitWarned[k] = true
log.WithFields(log.Fields{
"Topic": "Peer",
"Key": peer.ID(),
"AddressFamily": k.String(),
}).Warnf("prefix limit %d%% reached", pct)
}
if count > maxPrefixes {
log.WithFields(log.Fields{
"Topic": "Peer",
"Key": peer.ID(),
"AddressFamily": k.String(),
}).Warnf("prefix limit reached")
return bgp.NewBGPNotificationMessage(bgp.BGP_ERROR_CEASE, bgp.BGP_ERROR_SUB_MAXIMUM_NUMBER_OF_PREFIXES_REACHED, nil)
}
}
return nil
}