diff --git a/limit.go b/limit.go
index 8d3bedc..15a9642 100644
--- a/limit.go
+++ b/limit.go
@@ -22,3 +22,95 @@ type Limiter interface {
 	GetStreamLimits(p peer.ID) Limit
 	GetConnLimits() Limit
 }
+
+// static limits
+type StaticLimit struct {
+	Memory          int64
+	StreamsInbound  int
+	StreamsOutbound int
+	ConnsInbound    int
+	ConnsOutbound   int
+	FD              int
+}
+
+var _ Limit = (*StaticLimit)(nil)
+
+// basic limiter with fixed limits
+type BasicLimiter struct {
+	SystemLimits          Limit
+	TransientLimits       Limit
+	DefaultServiceLimits  Limit
+	ServiceLimits         map[string]Limit
+	DefaultProtocolLimits Limit
+	ProtocolLimits        map[protocol.ID]Limit
+	DefaultPeerLimits     Limit
+	PeerLimits            map[peer.ID]Limit
+	ConnLimits            Limit
+	StreamLimits          Limit
+}
+
+var _ Limiter = (*BasicLimiter)(nil)
+
+func (l *StaticLimit) GetMemoryLimit() int64 {
+	return l.Memory
+}
+
+func (l *StaticLimit) GetStreamLimit(dir network.Direction) int {
+	if dir == network.DirInbound {
+		return l.StreamsInbound
+	} else {
+		return l.StreamsOutbound
+	}
+}
+
+func (l *StaticLimit) GetConnLimit(dir network.Direction) int {
+	if dir == network.DirInbound {
+		return l.ConnsInbound
+	} else {
+		return l.ConnsOutbound
+	}
+}
+
+func (l *StaticLimit) GetFDLimit() int {
+	return l.FD
+}
+
+func (l *BasicLimiter) GetSystemLimits() Limit {
+	return l.SystemLimits
+}
+
+func (l *BasicLimiter) GetTransientLimits() Limit {
+	return l.TransientLimits
+}
+
+func (l *BasicLimiter) GetServiceLimits(svc string) Limit {
+	sl, ok := l.ServiceLimits[svc]
+	if !ok {
+		return l.DefaultServiceLimits
+	}
+	return sl
+}
+
+func (l *BasicLimiter) GetProtocolLimits(proto protocol.ID) Limit {
+	pl, ok := l.ProtocolLimits[proto]
+	if !ok {
+		return l.DefaultProtocolLimits
+	}
+	return pl
+}
+
+func (l *BasicLimiter) GetPeerLimits(p peer.ID) Limit {
+	pl, ok := l.PeerLimits[p]
+	if !ok {
+		return l.DefaultPeerLimits
+	}
+	return pl
+}
+
+func (l *BasicLimiter) GetStreamLimits(p peer.ID) Limit {
+	return l.StreamLimits
+}
+
+func (l *BasicLimiter) GetConnLimits() Limit {
+	return l.ConnLimits
+}