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Introduction
Cisco Network Function Virtualization Infrastructure(Cisco NFVI) provides the virtual layer and hardware environment in which virtual network functions (VNFs) can operate. VNFs provide well-defined network functions such as routing, intrusion detection, domain name service (DNS), caching, network address translation (NAT) and other network functions. While these network functions required a tight integration between network software and hardware in the past, VNFs decouple software from the underlying hardware.
Cisco NFVI is based on the Newton release of OpenStack, the open source cloud operating system that controls large pools of compute, storage, and networking resources. The Cisco version of OpenStack is Cisco Virtualization Infrastructure Manager (VIM). VIM manages the OpenStack compute, network, and storage services, and all Cisco NFVI build and control functions. Cisco NFVI pods perform four key roles:
Hardware used to create the Cisco NFVI pods include:
Cisco UCS® C240 M4—Performs management and storage functions and services. Includes dedicated Ceph (UCS 240-M4) distributed object store and file system. (Only Red Hat Ceph is supported).
Cisco UCS C220/240 M4—Performs control and compute services.
Cisco UCS B200 M4 blades—Can be used instead of the UCS C220 for compute and control services. The B200 blades and C240 Ceph server are connected with redundant Cisco Fabric Interconnects managed by UCS Manager.
The UCS C240 and C220 servers are M4 Small Form Factor (SFF) models where the OS boots from HDD for control and computes, and internal SSD for Ceph nodes. Each UCS C240, C220, and B200 has two 10 GE Cisco UCS Virtual Interface Cards.
Software applications that manage Cisco NFVI hosts and services include:
Red Hat Enterprise Linux7.4 with OpenStack Platform 10.0-Provides the core operating system with OpenStack capability. RHEL 7.4 and OSP 10.0 are installedon all Cisco NFVI UCS servers.
Cisco Virtual Infrastructure Manager (VIM)—An OpenStack orchestration system that helps deploy and manage an OpenStack cloud offering from bare metal installation to OpenStack services, taking into account hardware and software redundancy, security and monitoring. Cisco VIM includes the OpenStack Newton release with additional features and usability enhancements tested for functionality, scale, and performance.
Cisco Insight—Deploys, provisions, and manages CiscoVIM on Cisco UCS servers.
Cisco UCS Manager—Used to perform certain management functions when UCS B200 blades are installed.
Cisco Integrated Management Controller (IMC) Provides embedded server management for Cisco UCS C-Series Rack Servers. Supported Cisco IMC firmware versions install or upgrade of Cisco VIM 2.2 is2.0 (13i) or greater. Note under no circumstances can the CIMC version be running 3.0 series.
Cisco Virtual Topology System (VTS)—is a standards-based, open, overlay management and provisioning system for data center networks. It automates DC overlay fabric provisioning for physical and virtual workloads.
Cisco Virtual Topology Forwarder (VTF)—Included with VTS, VTF leverages Vector Packet Processing (VPP) to provide high performance Layer 2 and Layer 3 VXLAN packet forwarding.
Supported Layer 2 networking protocols include:
Virtual extensible LAN (VXLAN) over a Linux bridge
Open vSwitch (OVS) over VLAN (SRIOV with Intel 710 NICs)
ML2/VPP over VLAN for C-series Only
For UCS B-Series pods, Single Root Input/Output Virtualization (SRIOV). SRIOV allows a single physical PCI Express to be shared on a different virtual environment. The SRIOV offers different virtual functions to different virtual components, for example, network adapters, on a physical server.
Any connection protocol can be used unless you install UCS B200 blades with the UCS Manager plugin, in which case, only OVS over VLAN can be used.
Features of Cisco VIM 2.2
Cisco VIM 2.2 is a standalone fully automated cloud lifecycle manager offering from Cisco for private cloud. The current version of VIM, integrates well with Cisco C or B-series UCS servers and Cisco or Intel NIC.
The following table provides a summary of the feature set that is offered.
Known Caveats
The following lists describes the known caveats in NFVI 2.0.
- CSCve39684
- Translation of vic_slot '7' to 'MLOM' fails in CIMC 2.0(13i) version.
- CSCva37451
- Traffic loss of 8-10s seen while controller with active l3 reboots.
- CSCva36943
- Volume attach failure errors need to be reported back to the user.
- CSCva36914
- After a MariaDB HA event, you may need to run the recovery playbook.
- CSCva36907
- Nova compute reports that it is down for up to two minutes after a controller reboot.
- CSCva36782
- Nova HA: VM is stuck in scheduling state after Nova conductor HA.
- CSCva32195
- Auto-created L3 network not cleaned up properly with router/tenant deletion.
- CSCva32312
- Update fails if compute is not reachable even though updating the containers on the controller node.
- CSCva34476
- Nova api is unavailable for a few minutes after you bring down the controller.
- CSCva32193
- The ARP entry on ToR is not refreshed randomly resulting in an external ping to VM VIP failure.
- CSCva57121
- The Ceph cluster does not move to Error state when all storage nodes are down.
- CSCva66093
- Rollback not supported for repo update failure.
- CSCvf81055
VMs goes to 'SHUTOFF' state intermittently on compute node reboot.
- CSCve13042
- Recovery play book needs to handle ceph recovery after power outage.
- CSCvf95389
[MERCURY/VTS] Tenant VM CPU Pinning Not Working (Intermittently).
- CSCve76157
Performance Issue on IE browser.
- CSCvf74264
Insight UI: as Pod User, cannot update the restapi password after it is changed.
- CSCvf86622
When using MECHANISM_DRIVER: aci, the command-line interfaces for neutron quota-update do not get enforced.
- CSCvf86623
When using MECHANISM_DRIVER: aci, VMs originally in an ACTIVE state on a rebooted compute node are unable to acquire an ip address from DHCP.
- CSCvf91442
Insight UI: Storage Node information is not shown after performing remove compute operation.
- CSCvf91387
Micropod with VPP: L3 fails intermittently.
Using the Cisco Bug Search Tool
ProcedureYou can use the Bug Search Tool to search for a specific bug or to search for all bugs in a release.
Step 1 Go to the Cisco Bug Search Tool. Step 2 In the Log In screen, enter your registered Cisco.com username and password, and then click Log In. The Bug Search page opens.
Note If you do not have a Cisco.com username and password, you can register for them at http://tools.cisco.com/RPF/register/register.do.
Step 3 To search for a specific bug, enter the bug ID in the Search For field and press Enter. Step 4 To search for bugs in the current release:
Related Documentation
The Cisco NFVI 2.0 documentation set consists of:
Cisco NFV Infrastructure Installation Guide
Cisco NFV Infrastructure Administrator Guide
Cisco NFV Infrastructure Release Notes
These documents will be available on cisco.com when Cisco NFV Infrastructure is released.
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as an RSS feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service. Cisco currently supports RSS Version 2.0.
External References
NFVI documentation is now available on Cisco.com.
Here is the documentation link:
Release Note:
https://www.cisco.com/c/en/us/td/docs/net_mgmt/network_function_virtualization_Infrastructure/2_2/release_notes/b_NFVI_Release_Notes_2_2.htmlInstallation Guide:
https://www.cisco.com/c/en/us/td/docs/net_mgmt/network_function_virtualization_Infrastructure/2_2/install_guide/b_Cisco_VIM_Intsall_Guide_2_2.htmlAdministration Guide:
https://www.cisco.com/c/en/us/td/docs/net_mgmt/network_function_virtualization_Infrastructure/2_2/admin_guide/b_Cisco_NFVI_Admin_Guide_2_2.htmlVIM 2.0 BOM Link from Box
https://cisco.app.box.com/s/lsbbgrjn469jl6hjr41rlkz80xt7zqfqMicropod BOM (as Tech Preview)
https://cisco.app.box.com/s/lsbbgrjn469jl6hjr41rlkz80xt7zqfqCopyright © 2017, Cisco Systems, Inc. All rights reserved.