A9K-2T20GE-E

A9K-2T20GE-E Specification

●  Operating system infrastructure protection: Cisco IOS XR Software provides a microkernel architecture that forces all but the most critical functions, such as memory management and thread distribution, outside of the kernel. This setup prevents failures in applications, file systems, and even device drivers from causing widespread service disruption.

●  Process and thread protection: Each process – even individual process threads – occurs in its own protected memory space, and communications between processes are accomplished through well-defined, secure, and version-controlled application programming interfaces (APIs). This setup significantly minimizes the effect that any process failure can have on other processes.

●  Process restart: The line cards offer the ability to restart critical control-plane processes both manually and automatically in response to a process failure, rather than restarting the entire OS. This feature helps to support the Cisco IOS XR Software goal of continuous system availability and allows for quick recovery from process or protocol failures with minimal disruption to customers or traffic.

●  State checkpointing: The line cards offer the capability to maintain a memory and critical operating state across process restarts so that routing adjacencies and signaling state can be maintained during an RSP switchover.

●  Flexible VLAN classification: VLAN classification into EFPs includes single-tagged VLANs, double-tagged VLANs (QinQ and 802.1ad), contiguous VLAN ranges, and noncontiguous VLAN lists.

●  IEEE bridging: The line cards support native bridging based on IEEE 802.1Q, IEEE 802.1ad, 802.1ah, and QinQ VLAN encapsulation mechanisms.

●  IEEE 802.1s Multiple Spanning Tree (MST): MST extends the 802.1w Rapid Spanning Tree Protocol (RSTP) to multiple spanning trees, providing rapid convergence and load balancing.

●  MST Access Gateway: The MST Access Gateway provides a resilient, fast-convergence mechanism for aggregating and connecting to Ethernet-based access rings.

●  Hierarchical VPLS (HVPLS): HVPLS provides a level of hierarchy at the edge of the VPLS network for increased scale. Two options of HVPLS are supported: QinQ access and Ethernet over MPLS (pseudowire) access.

●  Virtual Private Wire Service (VPWS) with Ethernet over MPLS (EoMPLS): EoMPLS transports Ethernet frames across an MPLS core using pseudowires. Individual EFPs or traffic from an entire port can be transported over the MPLS backbone using pseudowires to an egress interface or subinterface.

●  Pseudowire redundancy: Pseudowire redundancy supports the definition of a backup pseudowire to protect a primary pseudowire that fails.

●  G.8032: G.8032 is a feature that provides the sub-50-ms protection for Ethernet traffic in a ring topology.  The implementation on the Cisco ASR 9000 Series is compliant with version 2 of the ITU-T standard.

●  Multisegment pseudowire stitching: Multisegment pseudowire stitching is a method for interworking two pseudowires together to form a cross-connect relationship.

●  IGMP v2 and v3 snooping: This Layer 2 mechanism efficiently tracks multicast membership on an L2VPN network. Individual IGMP joins are snooped at the VLAN level or pseudowire level and then results are summarized into a single upstream join message. In residential broadband deployments, this scenario allows the network to send only channels that are being watched to the downstream users.

●  EOAM (IEEE 802.1ag): Ethernet Connectivity Fault Management (E-CFM) is a subset of EOAM that provides numerous protocols and procedures that allow discovery and verification of the path through 802.1 bridges and LANs.

●  EOAM (ITU Y.1731): Y.1731 provides two separate feature sets: Fault Management (FM) and Performance Monitoring (PM).  Fault Management builds on 802.1ag message types to allow verification of the Ethernet network and provide a toolset for troubleshooting any found faults.  Performance Monitoring allows service providers to provide SLAs to their end customers by measuring the delay, latency, and loss across an Ethernet network.

●  Ethernet LMI (E-LMI): Ethernet Local Management Interface (E-LMI) is a protocol between the customer-edge (CE) device and the provider-edge (PE) device. It runs only on the PE-to-CE User Network Interface (UNI) link and notifies the CE device of connectivity status and configuration parameters of Ethernet services available on the CE port.

●  MPLS OA&M: The line cards support label switched path (LSP) ping, LSP traceroute, and VCCV.

●  IPv6 routing: Cisco IOS XR Software supports IPv6 services, including OSPFv3, IS-IS, Virtual Router Redundancy Protocol (VRRPv6), DHCPv6 relay, and static routing.

●  BGP Prefix Independent Convergence (PIC): BGP PIC provides the ability to converge BGP routes using the fast-convergence innovation that is distinctive to Cisco IOS XR Software.

●  Carrier supporting carrier (CSC): CSC allows an MPLS VPN service provider to connect geographically isolated sites using another backbone service provider and still maintain a private address space for its customer VPNs. CSC is implemented as defined by IETF RFC 4364.

●  Selective VRF Download:  This feature provides the ability to selectively download VRF forwarding information base (FIB) entries to line cards that have VRF membership for each VRF.  This provides larger FIB scale at a chassis level without burdening line cards with unnecessary FIB entries.

●  6PE and 6VPE: 6PE and 6VPE allow for introduction of IPv6 from the edge, in a scalable way, without any IPv6 addressing restrictions and without putting a well-controlled IPv4 backbone in jeopardy. This provides a solution that has minimal risk and operational cost with no effect on either the existing IPv4/MPLS backbone or edge and customer IPv6 networks.

●  MPLS Traffic Engineering Preferred Path: Preferred tunnel path functions let you map pseudowires to specific traffic engineering tunnels. Attachment circuits are cross-connected to specific MPLS TE tunnel interfaces instead of remote provider-edge router IP addresses (reachable using Interior Gateway Protocol [IGP] or LDP).

●  MPLS Traffic Engineering Auto-Bandwidth: MPLS TE automatic bandwidth adjustment provides the means to automatically adjust the bandwidth allocation for traffic engineering tunnels based on their measured traffic load.

●  Point to Multipoint (P2MP) Traffic Engineering:  The MPLS P2MP TE feature allows you to forward MPLS traffic from one source to multiple destinations. P2MP TE provides a single point of traffic control and the ability to configure explicit paths to optimize traffic distribution, while benefitting from extending FRR protection to P2MP TE sub-LSPs.

●  Bidirectional Forwarding Detection (BFD): BFD is a detection protocol that is designed to provide fast-forwarding path-failure detection times for all media types, encapsulations, topologies, and routing protocols.

●  802.3ad Link Aggregation Bundles: The line cards support a bundle of multiple links to provide added resiliency and the ability to load-balance traffic over multiple member links.

●  Multichassis Link Aggregation Group (MC-LAG): MC-LAG provides a standards-based 802.3ad bundle for a connecting device to reach a pair of Cisco ASR 9000 Series Aggregation Services Routers that appear as a single router to the connecting device. Rapid restoration times are possible even if there is a link or node failure, which improves the operational environment for the connecting device. MC-LAG can work with a long list of solutions on the Cisco ASR 9000 Series routers, such as business L2VPN and L3VPN, residential service backhaul, mobile aggregation, and service provider edge.

Smart Call Home (SCH): This proactive support capability identifies and reports problems before they affect your business. This allows for less time troubleshooting and a speedier resolution experience for network issues.

Cisco Active Network Abstraction (ANA): Cisco ANA is a flexible, vendor-neutral management framework for a multitechnology, multiservice network environment. Operating between the network and the operations-support-system (OSS) layer, Cisco ANA aggregates virtual network elements (VNEs) into a software-based virtual network, much as real network elements create the real-world network. Cisco ANA dynamically discovers network components and tracks the status of network elements in near real time. Cisco ANA offers service providers:

●  Simplified integration of OSS applications with network information

●  A flexible common infrastructure for managing network resources

●  Consistent procedures and interfaces for all network elements

Layer 2 ACLs: You can use this security feature to filter packets under an EVC based on MAC addresses.

Layer 3 ACLs: This feature provides ACL matching by IPv4 packet attributes.

Security: Many critical security features are supported:

●  802.1ad Layer 2 Control Protocol (L2CP) and bridge-protocol-data-unit (BPDU) filtering

●  MAC limiting per EFP or bridge domain

●  Unicast, multicast, and broadcast storm-control blocking on any interface or port

●  Unknown Unicast Flood Blocking (UUFB)

●  Dynamic Host Configuration Protocol (DHCP) snooping

●  Unicast Reverse Path Forwarding (URPF)

●  Control-plane security

●  Dynamic ARP Inspection (DAI)

●  IP Source Guard (IPSG)

14 – 19 lb (6.35 – 8.62 kg)

Note: Not to exceed 0.024 kg waterper 1 kg of dry air

●  SR-3580: NEBS Criteria Levels (Level 3)

●  GR-1089-CORE: NEBS EMC and Safety

●  GR-63-CORE: NEBS Physical Protection

●  VZ.TPR.9205: Verizon TEEER

●  EN300 386: Telecommunications Network Equipment (EMC)

●  ETSI 300 019 Storage Class 1.1

●  ETSI 300 019 Transportation Class 2.3

●  ETSI 300 019 Stationary Use Class 3.1

●  EN55022: Information Technology Equipment (Emissions)

●  EN55024: Information Technology Equipment (Immunity)

●  EN50082-1/EN-61000-6-1: Generic Immunity Standard

●  FCC Class A

●  ICES 003 Class A

●  AS/NZS 3548 Class A

●  CISPR 22 (EN55022) Class A

●  VCCI Class A

●  BSMI Class A

●  IEC/EN 61000-3-2: Power Line Harmonics

●  IEC/EN 61000-3-3: Voltage Fluctuations and Flicker

●  EN 50121-4: Railway EMC

●  IEC/EN-61000-4-2: Electrostatic Discharge Immunity (8kV Contact, 15kV Air)

●  IEC/EN-61000-4-3: Radiated Immunity (10V/m)

●  IEC/EN-61000-4-4: Electrical Fast Transient Immunity (2kV Power, 1kV Signal)

●  IEC/EN-61000-4-5: Surge AC Port (4kV CM, 2kV DM)

●  IEC/EN-61000-4-5: Signal Ports (1kV)

●  IEC/EN-61000-4-5: Surge DC Port (1kV)

●  IEC/EN-61000-4-6: Immunity to Conducted Disturbances (10Vrms)

●  IEC/EN-61000-4-8: Power Frequency Magnetic Field Immunity (30A/m)

●  IEC/EN-61000-4-11: Voltage DIPS, Short Interruptions, and Voltage Variations

●  EN 50121-4: Railway EMC

●  UL/CSA/IEC/EN 60950-1

●  IEC/EN 60825 Laser Safety

●  ACA TS001

●  AS/NZS 60950

●  FDA: Code of Federal Regulations Laser Safety