func ExamplePrefix_subnettingAndAggregation() {
_, n, err := net.ParseCIDR("192.0.2.0/24")
if err != nil {
log.Fatal(err)
}
p := ipaddr.NewPrefix(n)
fmt.Println(p.IP, p.Last(), p.Len(), p.Mask, p.Hostmask())
fmt.Println()
ps := p.Subnets(3)
for _, p := range ps {
fmt.Println(p)
}
fmt.Println()
fmt.Println(ipaddr.Aggregate(ps))
fmt.Println(ipaddr.Aggregate(ps[1:7]))
fmt.Println(ipaddr.Aggregate(ps[:4]))
fmt.Println(ipaddr.Aggregate(ps[4:8]))
// Output:
// 192.0.2.0 192.0.2.255 24 ffffff00 000000ff
//
// 192.0.2.0/27
// 192.0.2.32/27
// 192.0.2.64/27
// 192.0.2.96/27
// 192.0.2.128/27
// 192.0.2.160/27
// 192.0.2.192/27
// 192.0.2.224/27
//
// [192.0.2.0/24]
// [192.0.2.32/27 192.0.2.64/26 192.0.2.64/27 192.0.2.192/27]
// [192.0.2.0/25]
// [192.0.2.128/25]
}
func TestAggregate(t *testing.T) {
for i, tt := range aggregateTests {
in, orig, want := toPrefixes(tt.in), toPrefixes(tt.in), toPrefixes(tt.want)
sort.Sort(byAscending(want))
out := ipaddr.Aggregate(in)
if !reflect.DeepEqual(out, want) {
t.Errorf("#%d: got %v; want %v", i, out, want)
}
if !reflect.DeepEqual(in, orig) {
t.Errorf("#%d: %v is corrupted; want %v", i, in, orig)
}
}
ipaddr.Aggregate(nil)
}
func BenchmarkAggregateIPv6(b *testing.B) {
in := toPrefixes([]string{"2001:db8::/64", "2001:db8:0:1::/64", "2001:db8:0:2::/64", "2001:db8:0:3::/64", "2001:db8:0:4::/64", "2001:db8::/64", "2001:db8::1/64"})
for i := 0; i < b.N; i++ {
ipaddr.Aggregate(in)
}
}
func BenchmarkAggregateIPv4(b *testing.B) {
in := toPrefixes([]string{"192.168.0.0/24", "192.168.1.0/24", "192.168.2.0/24", "192.168.3.0/24", "192.168.4.0/25", "192.168.101.0/26", "192.168.102.1/27"})
for i := 0; i < b.N; i++ {
ipaddr.Aggregate(in)
}
}
func ExamplePrefix_subnettingAndAggregation() {
_, n, err := net.ParseCIDR("192.168.0.0/24")
if err != nil {
log.Fatal(err)
}
p := ipaddr.NewPrefix(n)
fmt.Println(p.IP, p.Last(), p.Len(), p.Mask, p.Hostmask())
ps := p.Subnets(2)
for _, p := range ps {
fmt.Println(p)
}
_, n, err = net.ParseCIDR("192.168.100.0/24")
if err != nil {
log.Fatal(err)
}
ps = append(ps, *ipaddr.NewPrefix(n))
fmt.Println(ipaddr.Aggregate(ps[2:]))
// Output:
// 192.168.0.0 192.168.0.255 24 ffffff00 000000ff
// 192.168.0.0/26
// 192.168.0.64/26
// 192.168.0.128/26
// 192.168.0.192/26
// [192.168.0.128/25 192.168.100.0/24]
}
func BenchmarkAggregateIPv6(b *testing.B) {
for i := 0; i < b.N; i++ {
ipaddr.Aggregate(aggregatablePrefixesIPv6)
}
}