ASR1000 L3 Router Service Plugin Installation Guide¶
This is an installation guide for enabling the ASR1000 L3 Router Service Plugin (L3P) support on OpenStack.
The prerequisites for installing the ASR1k L3P are as follows:
- Cisco IOS XE image version 16.03.04. Refer to ASR1k docs for upgrade/downgrade instructions. From this link, select the ‘Support’ option in the middle of the page for information on upgrade/downgrade guides, configuration and technical references.
- The ASR1k L3P has been tested on these OSs.
- Ubuntu 14.04 or above
- Your ASR1k router must be set-up as described in the next section ASR1k Router Setup.
- As the ASR1k L3P uses ncclient the following must also be installed:
Paramikolibrary, the SSHv2 protocol library for python
ncclient(minimum version v0.4.6) python library for NETCONF clients. Install the ncclient library by using the pip package manager at your shell prompt: pip install ncclient >= 0.4.6
- Additionally, the following
ASR1k Router Setup¶
This section lists what is required to prepare the ASR1k router for operation with the ASR1k L3P.
Your ASR1k router must be connected to a management network separate from the OpenStack data network. The configuration agent (CFGA) must be able to access this network so it can communicate with the ASR1k router to set up tenant data flows.
The following exemplifies this for a case where the management subnet is 10.0.10.0/24 with upstream gateway 10.0.10.1/24. The management interface of the ASR1k is
GigabitEthernet0and its IP address is 10.0.10.39/24.
vrf definition Mgmt-intf ! address-family ipv4 exit-address-family ! address-family ipv6 exit-address-family ! ! interface GigabitEthernet0 vrf forwarding Mgmt-intf ip address 10.0.10.39 255.255.255.0 negotiation auto no mop enabled ! ip route vrf Mgmt-intf 0.0.0.0 0.0.0.0 10.0.10.1 ip ssh source-interface GigabitEthernet0 !
A CFGA uses Netconf to apply configurations in an ASR1k router. Netconf therefore has to be enabled by the router administrator along with user credentials for authentication. These credentials must match one of the
hosting_device_credentialsdefined for CFGA ( see).
The following exemplifies this for a user
username stack privilege 15 password 0 cisco netconf max-sessions 16 netconf ssh
Some pre-configuration of ASR1k interfaces that will carry data traffic for Neutron routers must be performed by the router administrator.
- All participating interfaces must be enabled with no shutdown.
- Any port-channels to be used must also be pre-configured.
The following example defines port-channel 10 on interfaces
interface Port-channel10 no ip address ! interface TenGigabitEthernet0/1/0 no ip address cdp enable channel-group 10 mode active ! interface TenGigabitEthernet0/2/0 no ip address cdp enable channel-group 10 mode active !
ASR1k L3P Installation¶
Install networking-cisco package as described in the section Installing the networking-cisco Package.
Configure ASR1k L3 router service plugin, its dependencies, the device manager plugin and the configuration agent. Full details on how to do this are available in the ASR1000 L3 Router Service Plugin Administration Guide. For details on each configuration parameters, refer to ASR1k Configuration Reference.
Restart neutron to pick-up configuration changes. For example on Ubuntu 14.04 use:
$ service neutron-server restart