Container-Native Networking - Comparison

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P
1	Feature	Docker Overlay Network	Calico	Flannel	Weave Net	Canal (Calico + Flannel)	Romana	Aporeto/Trireme	Cisco Contiv	Covalent Cilium	Kube-Router	OVS/OVN	NSX-T	Midokura	Nuage	Open Contrail

2	Open Source	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes/No	No	Yes
3	Network Model [Data Path Technique]	VXLAN overlay	L3 with BGP Peering or IPIP Encapsulation	VXLAN or UDP overlay	VXLAN or UDP overlay; IP routed for AWS VPC	VXLAN or UDP overlay	Layer 3	Layer 3 with TLS	Layer 2, Layer 3 (BGP) & VxLAN overlay	L3 with optional encapsulation	BGP Based	VxLAN	GENEVE
4	Network Policy API Support			No		Yes			Uses a custom mechanism for applying policy.				Yes
5	Application Isolation	CIDR Schema	Policy Schema based on labels, cidrs, ports and profiles	CIDR Schema	CIDR Schema, Network Policy API	Policy Schema based on labels, cidrs, ports and profiles	CIDR Schema	TLS-based	Both Label based as well as CIDR Schema	Policy based on labels			CIDR
6	Isolation from Host Network NS	YES	Yes		Yes				Yes				Yes
7	Ingress Policy	Yes	Yes		Yes		Yes		Yes*
8	Egress policy		Yes	No	No	Yes	Yes			Yes
9	Protocol Support	ALL except multicast	ALL	ALL	ALL	ALL	ALL	TCP only	All	Artifically limited to IPv4/IPv6 & TCP/UDP/ICMP[v6]			All IPv4 and IPv6. Multicast not supported
10	Built-in Name Service	YES	No	No	Yes	No	No	No	Yes	No			No
11	Built-in Service Load Balancer	YES	No	No	No	No	No		Yes	Yes			Yes
12	Cluster Store Requirements	None	etcd/k8s API	etcd/k8s API	None	etcd/k8s API	etcd/Consul Zookeeper	None	etcd/Consul	Yes (consul or etcd)			Zookeeper
13	Encryption	YES	No	No	NaCl Library	No	No	TLS	No	Yes (IPSec)			TLS
14	Separate vNIC for Container	YES	Yes	No	Yes	No	No	No	Yes	Yes (shared logical routing table)			NA
15	IP Overlap Support	YES	No	No	No	No	No	No	Yes, multiple VRFs	No			Yes
16	Container Subnet Restriction	YES	No	No	Yes, configurable after start	No	No	No	No restriction	No
17	Multicast support	NO	No	No	Yes	No	No	No	Yes	No
18	Pods routable from outside cluster	N/A	Yes	No	Yes		No		Yes	Yes
19	Container Networking Interface	N/A	Yes	Yes	Yes	Yes	Yes	?	Yes	Yes
20	Container Networking Model	YES	Yes	No	Yes	No	No	?	Yes	Yes
21	OpenStack Support	N/A	Yes	No	No	No	Yes		Yes	No		Yes	Yes	Yes	Yes	Yes
22	Kubernetes CNI	N/A	Yes	Yes	Yes	Yes	Yes		Yes	Yes			Yes	Yes
23	Mesos Support	N/A	Yes	Yes	Yes	Yes	No			Yes			Yes
24	Docker Support	Yes	Yes	No	Yes		No		Yes	Yes			Yes
25	rkt Support	N/A	Yes	Yes						No
26	Cloud Foundry Support	NO	?	Yes	?	?	No			No			Yes
27	Nomad Support	N/A	No	No	No	No	No		Yes	No
28	URL to Networking Architecture		Calico Reference Architecture	Flannel	Introducing Weave	tigera/canal	Romana Basics	Trireme Architecture	contiv.io	https://github.com/cilium/cilium
29	URL to Reference Architecture	Designing Scalable, Portable Docker Container Networks					Romana Details
30	URL to Demo		Calico Demo							Cilium
31	Troubleshooting		Calico		Weave
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33	Please use N/A if support isn't applicable
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