From be8ef89c7d887117aa6f0d6ef3086509b0dbb3b3 Mon Sep 17 00:00:00 2001 From: Bin Hu Date: Sun, 17 Sep 2017 14:02:53 -0700 Subject: Updated User Guide Change-Id: Ieb62a40e34638aaffd6dc8b25493047142e5dbe7 Signed-off-by: Bin Hu --- docs/release/userguide/gap-os-newton.rst | 139 ------------------------------- 1 file changed, 139 deletions(-) delete mode 100644 docs/release/userguide/gap-os-newton.rst (limited to 'docs/release/userguide/gap-os-newton.rst') diff --git a/docs/release/userguide/gap-os-newton.rst b/docs/release/userguide/gap-os-newton.rst deleted file mode 100644 index 2c075c5..0000000 --- a/docs/release/userguide/gap-os-newton.rst +++ /dev/null @@ -1,139 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 -.. (c) Bin Hu (AT&T) and Sridhar Gaddam (RedHat) - -======================================= -IPv6 Gap Analysis with OpenStack Newton -======================================= - -This section provides users with IPv6 gap analysis regarding feature requirement with -OpenStack Neutron in Newton Official Release. The following table lists the use cases / feature -requirements of VIM-agnostic IPv6 functionality, including infrastructure layer and VNF -(VM) layer, and its gap analysis with OpenStack Neutron in Newton Official Release. - -.. table:: - :class: longtable - - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Use Case / Requirement |Supported in Newton|Notes | - +===========================================================+===================+====================================================================+ - |All topologies work in a multi-tenant environment |Yes |The IPv6 design is following the Neutron tenant networks model; | - | | |dnsmasq is being used inside DHCP network namespaces, while radvd | - | | |is being used inside Neutron routers namespaces to provide full | - | | |isolation between tenants. Tenant isolation can be based on VLANs, | - | | |GRE, or VXLAN encapsulation. In case of overlays, the transport | - | | |network (and VTEPs) must be IPv4 based as of today. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |IPv6 VM to VM only |Yes |It is possible to assign IPv6-only addresses to VMs. Both switching | - | | |(within VMs on the same tenant network) as well as east/west routing| - | | |(between different networks of the same tenant) are supported. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |IPv6 external L2 VLAN directly attached to a VM |Yes |IPv6 provider network model; RA messages from upstream (external) | - | | |router are forwarded into the VMs | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |IPv6 subnet routed via L3 agent to an external IPv6 network| |Configuration is enhanced since Kilo to allow easier setup of the | - | |1. Yes |upstream gateway, without the user being forced to create an IPv6 | - |1. Both VLAN and overlay (e.g. GRE, VXLAN) subnet attached | |subnet for the external network. | - | to VMs; | | | - |2. Must be able to support multiple L3 agents for a given |2. Yes | | - | external network to support scaling (neutron scheduler | | | - | to assign vRouters to the L3 agents) | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Ability for a NIC to support both IPv4 and IPv6 (dual | |Dual-stack is supported in Neutron with the addition of | - |stack) address. | |``Multiple IPv6 Prefixes`` Blueprint | - | | | | - |1. VM with a single interface associated with a network, |1. Yes | | - | which is then associated with two subnets. | | | - |2. VM with two different interfaces associated with two |2. Yes | | - | different networks and two different subnets. | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Support IPv6 Address assignment modes. |1. Yes | | - | | | | - |1. SLAAC |2. Yes | | - |2. DHCPv6 Stateless | | | - |3. DHCPv6 Stateful |3. Yes | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Ability to create a port on an IPv6 DHCPv6 Stateful subnet |Yes | | - |and assign a specific IPv6 address to the port and have it | | | - |taken out of the DHCP address pool. | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Ability to create a port with fixed_ip for a |**No** |The following patch disables this operation: | - |SLAAC/DHCPv6-Stateless Subnet. | |https://review.openstack.org/#/c/129144/ | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Support for private IPv6 to external IPv6 floating IP; |**Rejected** |Blueprint proposed in upstream and got rejected. General expectation| - |Ability to specify floating IPs via Neutron API (REST and | |is to avoid NAT with IPv6 by assigning GUA to tenant VMs. See | - |CLI) as well as via Horizon, including combination of | |https://review.openstack.org/#/c/139731/ for discussion. | - |IPv6/IPv4 and IPv4/IPv6 floating IPs if implemented. | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Provide IPv6/IPv4 feature parity in support for |**To-Do** |The L3 configuration should be transparent for the SR-IOV | - |pass-through capabilities (e.g., SR-IOV). | |implementation. SR-IOV networking support introduced in Juno based | - | | |on the ``sriovnicswitch`` ML2 driver is expected to work with IPv4 | - | | |and IPv6 enabled VMs. We need to verify if it works or not. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Additional IPv6 extensions, for example: IPSEC, IPv6 |**No** |It does not appear to be considered yet (lack of clear requirements)| - |Anycast, Multicast | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |VM access to the meta-data server to obtain user data, SSH |**No** |This is currently not supported. Config-drive or dual-stack IPv4 / | - |keys, etc. using cloud-init with IPv6 only interfaces. | |IPv6 can be used as a workaround (so that the IPv4 network is used | - | | |to obtain connectivity with the metadata service). The following | - | | |blog `How to Use Config-Drive for Metadata with IPv6 Network | - | | |`_ provides a neat summary on how to use | - | | |config-drive for metadata with IPv6 network. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Full support for IPv6 matching (i.e., IPv6, ICMPv6, TCP, |Yes |Both IPTables firewall driver and OVS firewall driver support IPv6 | - |UDP) in security groups. Ability to control and manage all | |Security Group API. | - |IPv6 security group capabilities via Neutron/Nova API (REST| | | - |and CLI) as well as via Horizon. | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |During network/subnet/router create, there should be an |Yes |Two new Subnet attributes were introduced to control IPv6 address | - |option to allow user to specify the type of address | |assignment options: | - |management they would like. This includes all options | | | - |including those low priority if implemented (e.g., toggle | |* ``ipv6-ra-mode``: to determine who sends Router Advertisements; | - |on/off router and address prefix advertisements); It must | | | - |be supported via Neutron API (REST and CLI) as well as via | |* ``ipv6-address-mode``: to determine how VM obtains IPv6 address, | - |Horizon | | default gateway, and/or optional information. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Security groups anti-spoofing: Prevent VM from using a |Yes | | - |source IPv6/MAC address which is not assigned to the VM | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Protect tenant and provider network from rogue RAs |Yes |When using a tenant network, Neutron is going to automatically | - | | |handle the filter rules to allow connectivity of RAs to the VMs only| - | | |from the Neutron router port; with provider networks, users are | - | | |required to specify the LLA of the upstream router during the subnet| - | | |creation, or otherwise manually edit the security-groups rules to | - | | |allow incoming traffic from this specific address. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Support the ability to assign multiple IPv6 addresses to |Yes | | - |an interface; both for Neutron router interfaces and VM | | | - |interfaces. | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Ability for a VM to support a mix of multiple IPv4 and IPv6|Yes | | - |networks, including multiples of the same type. | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |IPv6 Support in "Allowed Address Pairs" Extension |Yes | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Support for IPv6 Prefix Delegation. |Yes |Partial support in Newton | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |Distributed Virtual Routing (DVR) support for IPv6 |**No** |In Newton DVR implementation, IPv6 works. But all the IPv6 ingress/ | - | | |egress traffic is routed via the centralized controller node, i.e. | - | | |similar to SNAT traffic. | - | | |A fully distributed IPv6 router is not yet supported in Neutron. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |VPNaaS |Yes |VPNaaS supports IPv6. But this feature is not extensively tested. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |FWaaS |Yes | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |BGP Dynamic Routing Support for IPv6 Prefixes |Yes |BGP Dynamic Routing supports peering via IPv6 and advertising IPv6 | - | | |prefixes. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |VxLAN Tunnels with IPv6 endpoints. |Yes |Neutron ML2/OVS supports configuring local_ip with IPv6 address so | - | | |that VxLAN tunnels are established with IPv6 addresses. This | - | | |feature requires OVS 2.6 or higher version. | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |IPv6 First-Hop Security, IPv6 ND spoofing |Yes | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - |IPv6 support in Neutron Layer3 High Availability |Yes | | - |(keepalived+VRRP). | | | - +-----------------------------------------------------------+-------------------+--------------------------------------------------------------------+ - -- cgit 1.2.3-korg