A9K-4T-B, Cisco ASR 9000 Line Card, 4x10GE ports/XFP slots/Hot swappable

  • Brand: Cisco
  • Model: A9K-4T-B
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    Overview
    End-of-Life Notice
    End-of-Life Notice
    A9K-4T-B is officially EOL. Service support ends on 2020-05-31.
    For full lifecycle details, see A9K-4T-B EOL.

    Cisco A9K-4T-B Overview

    The Cisco A9K-4T-B is a carrier-grade 4-port 10GE line card for ASR 9000 Series aggregation routers, designed for high-performance service provider and large enterprise edge networks. It delivers deep queuing with up to 192,000 total queues, up to 128,000 policers, and 16,000 Ethernet Flow Points (EFPs) to support dense multi-service Ethernet and VPN deployments. With rich L2VPN, L3VPN, MPLS TE, and advanced OAM under Cisco IOS XR, this hot-swappable module ensures scalable, highly available IP/MPLS infrastructure.

    Product Highlights

    192,000
    Queues Scale
    128,000
    Policer Scale
    16,000
    EFP Services

    Product Applications Scenarios

    Service Providers
    The A9K-4T-B enables dense 10GE aggregation with rich L2VPN/L3VPN and MPLS TE, helping carriers scale IP/MPLS cores while cutting edge port costs.
    Enterprise Network
    Large enterprises use the A9K-4T-B for resilient WAN edge, leveraging BGP, IPv6, and advanced QoS to improve uptime and application performance.
    Cloud Services
    Cloud operators deploy this 10GE line card to aggregate high-density tenant traffic, optimizing VPN scale and reducing backbone congestion.

    Product Features Comparison

      Cisco A9K-4T-B Cisco A900-IMA16D Cisco A900-IMA8S Cisco SPA-4XOC12-POS
    Model A9K-4T-B, Cisco ASR 9000 Line Card, 4×10GE ports/XFP slots/Hot swappable A900-IMA16D, Cisco ASR 903 Interface Module, 16×T1/E1 Ports/ASR 900 Series/Patch Panel Required A900-IMA8S, Cisco ASR 903 Interface Module, 8×GE SFP/Hot-swappable/Low power SPA-4XOC12-POS, Cisco SPA Series Adapter, 4×OC-12/STM-4 POS/Shared Port
    Brand Cisco Cisco Cisco Cisco
    Module Type n/a ASR 900 16 port T1/E1 Interface Module, requires patch panel ASR 900 8 port SFP Gigabit Ethernet Interface Module Shared Port Adapter
    Port Configuration 4-Port 10GE Medium Queue Line Card, requires XFPs 16-port T1/E1 TDM 8-port Gigabit Ethernet SFP 4
    Supported Speed 10 Mbps, 100 Mbps, 1 Gbps, and 10 Gbps IEEE 802.3 Ethernet n/a n/a OC-12 / STM-4
    Compatible Platform Cisco ASR 9000 Series Aggregation Services Routers n/a n/a Cisco 12000 Series Routers
    Installation Type Hot swappable line card n/a n/a n/a
    Power Draw Maximum 350 W – 630 W; typical 310 W – 565 W (depending on card type) 14 W typical, 18 W maximum 17 W maximum 35 W maximum

    Optional Add-ons

    Model Number Description
    XFP-10GLR-OC192SR Cisco 10GBASE-LR XFP transceiver for long-reach 10GE links on ASR 9000 A9K-4T-B line cards
    XFP-10G-SR Cisco 10GBASE-SR XFP optical module providing short-reach 10GE connectivity for A9K-4T-B ports
    XFP-10GER-192IR+ Cisco XFP 10GE/OC-192 IR optical transceiver for carrier-grade metro and aggregation deployments with A9K-4T-B

    Quality Certifications

    • ISO 14001
    • ISO 9001
    • RoHS
    • REACH
    • CE
    • FCC
    Specification

    Cisco A9K-4T-B Specification

    Model
    A9K-4T-B
    Brand
    Cisco
    Part Number
    A9K-4T-B
    Product Description
    4-Port 10GE Medium Queue Line Card, requires XFPs
    Total Queues
    96,000 – 192,000
    Policers
    64,000 – 128,000
    Ethernet Flow Points (EFPs)
    16,000
    Cisco IOS XR Software Support - Modular Software Design
    Cisco IOS XR Software uses a modular design that delivers routing scalability, high availability, service isolation, and easy management for next-generation networks.
    Cisco IOS XR Software Support - OS Infrastructure Protection
    Microkernel architecture places all but core functions such as memory management and thread distribution outside the kernel to avoid broad service disruption from failures.
    Cisco IOS XR Software Support - Process and Thread Protection
    Each process and thread runs in its own protected memory space and communicates through secure, version-controlled APIs to limit impact of failures.
    Cisco IOS XR Software Support - Process Restart
    Supports manual or automatic restart of critical control-plane processes without rebooting the OS, helping maintain continuous system availability.
    Cisco IOS XR Software Support - State Checkpointing
    Maintains memory and critical operating state across process restarts so routing adjacencies and signaling state can be preserved during RSP switchover.
    Flexible Ethernet Services - Ethernet Virtual Connections (EVCs)
    Supports Ethernet services using EVCs per service or user, compatible with MPLS-based L2VPN and native Ethernet switching deployments.
    Flexible Ethernet Services - VLAN Classification
    Classification into EFPs for single-tagged VLANs, double-tagged VLANs (QinQ, 802.1ad), contiguous VLAN ranges, and noncontiguous VLAN lists.
    Flexible Ethernet Services - IEEE Bridging
    Supports IEEE 802.1Q, 802.1ad, 802.1ah, and QinQ VLAN encapsulation for native Ethernet bridging.
    Flexible Ethernet Services - IEEE 802.1s MST
    Multiple Spanning Tree (MST) extends Rapid STP (802.1w) to multiple spanning trees for fast convergence and load balancing.
    Flexible Ethernet Services - MST Access Gateway
    Provides a resilient, fast-convergence gateway for aggregation and connectivity to Ethernet-based access rings.
    L2VPN Services - VPLS
    Virtual Private LAN Services connect multiple sites in a single bridged domain over an IP/MPLS core, presenting a simple Ethernet interface to customers.
    L2VPN Services - Hierarchical VPLS (HVPLS)
    HVPLS adds hierarchy at the network edge for scale, supporting QinQ access and Ethernet over MPLS (pseudowire) access.
    L2VPN Services - VPWS with EoMPLS
    Virtual Private Wire Service with Ethernet over MPLS transports Ethernet frames using pseudowires from individual EFPs or whole ports across an MPLS core.
    L2VPN Services - Pseudowire Redundancy
    Supports backup pseudowires to protect primary pseudowires against failure.
    L2VPN Services - G.8032
    Provides sub-50 ms protection switching for Ethernet ring topologies, compliant with ITU-T G.8032 v2 on Cisco ASR 9000 Series.
    L2VPN Services - Multisegment Pseudowire Stitching
    Allows interworking of two pseudowires to form a cross-connect relationship across segments.
    Multicast - IPv4 Multicast
    Supports IGMPv2/v3, PIM-SSM, PIM-SM, PIM SSM Mapping, MSDP, Multicast VPN, and Anycast RP.
    Multicast - IGMP Snooping
    IGMPv2 and IGMPv3 snooping at VLAN or pseudowire level, summarizing joins upstream to deliver only watched channels in broadband deployments.
    OA&M - Ethernet OAM (IEEE 802.3ah)
    Provides link-layer OAM for monitoring physical link health and aiding fault isolation, supporting fast link-failure detection.
    OA&M - EOAM (IEEE 802.1ag)
    Ethernet Connectivity Fault Management (E-CFM) for discovering and verifying paths through 802.1 bridges and LANs.
    OA&M - EOAM (ITU Y.1731)
    Provides Fault Management and Performance Monitoring to verify Ethernet networks and measure delay, latency, and loss for SLAs.
    OA&M - Ethernet LMI (E-LMI)
    Protocol between CE and PE on the UNI link to notify CE of connectivity status and configuration of available Ethernet services.
    OA&M - MPLS OAM
    Supports LSP ping, LSP traceroute, and VCCV for MPLS OAM.
    Layer 3 Routing - IPv4
    Supports BGP, IS-IS, OSPF, RIP, static routes, IPv4 Multicast, RPL, HSRP, and VRRP.
    Layer 3 Routing - IPv6
    Supports OSPFv3, IS-IS, VRRPv6, DHCPv6 relay, and IPv6 static routing.
    Layer 3 Routing - BGP PIC
    BGP Prefix Independent Convergence for fast convergence of BGP routes on Cisco IOS XR Software.
    MPLS L3VPN - Core Feature
    Enables scalable IPv4 Layer 3 VPN backbone services over MPLS for IP VPN deployments.
    MPLS L3VPN - Carrier Supporting Carrier (CSC)
    Allows an MPLS VPN provider to use another backbone while keeping private address space, as defined in RFC 4364.
    MPLS L3VPN - Selective VRF Download
    Downloads VRF FIB entries only to line cards with VRF membership to increase chassis FIB scale and avoid unnecessary entries.
    MPLS L3VPN - 6PE and 6VPE
    Introduces IPv6 from the edge over an IPv4/MPLS backbone without IPv6 addressing restrictions or impact on existing IPv4 core.
    MPLS Traffic Engineering - Protocols
    Supports TE-FRR, RSVP, LDP, and T-LDP for MPLS Traffic Engineering.
    MPLS Traffic Engineering - Preferred Path
    Maps pseudowires to specific MPLS TE tunnels by cross-connecting attachment circuits to TE tunnel interfaces.
    MPLS Traffic Engineering - Auto-Bandwidth
    Automatically adjusts bandwidth allocation for TE tunnels based on measured traffic load.
    MPLS Traffic Engineering - P2MP TE
    Point-to-Multipoint TE forwards MPLS traffic from one source to multiple destinations with explicit paths and FRR protection for sub-LSPs.
    High Availability - MPLS TE-FRR
    Provides fast reroute around failed links, nodes, or paths for MPLS LSPs.
    High Availability - BFD
    Bidirectional Forwarding Detection gives fast forwarding-path failure detection for multiple media, encapsulations, and routing protocols.
    High Availability - 802.3ad Link Aggregation
    Supports link aggregation bundles for added resiliency and load balancing across member links.
    High Availability - MC-LAG
    Multichassis LAG offers standards-based 802.3ad bundles to a pair of ASR 9000 routers that appear as one device, with fast restoration for L2VPN, L3VPN, mobile and residential aggregation, and edge services.
    Manageability - Cisco IOS XR
    Provides modular CLI, SNMP, Cisco Discovery Protocol, LLDP, and native XML interfaces for management.
    Manageability - Smart Call Home (SCH)
    Proactive support that detects and reports issues before they affect services, reducing troubleshooting time.
    Manageability - Cisco ANA
    Cisco Active Network Abstraction provides a flexible, vendor-neutral management framework that discovers and tracks network elements in near real time.
    Manageability - OSS Integration
    Offers simplified OSS integration, a common infrastructure for network resources, and consistent procedures and interfaces.
    Security - Cisco IOS XR Features
    Includes ACLs, control-plane protection, routing authentication, AAA and TACACS+, SSH, SNMPv3, and RPL-based policy.
    Security - Layer 2 ACLs
    Filters packets under an EVC based on MAC addresses.
    Security - Layer 3 ACLs
    Matches IPv4 packets based on Layer 3 attributes.
    Security - L2CP and BPDU Filtering
    Supports 802.1ad Layer 2 Control Protocol and BPDU filtering for enhanced control-plane security at Layer 2.
    Security - MAC Limiting
    MAC address limiting per EFP or bridge domain to control unauthorized access.
    Security - Storm Control
    Unicast, multicast, and broadcast storm-control blocking on any interface or port.
    Security - Unknown Unicast Flood Blocking
    UUFB limits unknown unicast flooding on the network.
    Security - DHCP Snooping
    Prevents rogue DHCP servers and builds a trusted binding table for other security features.
    Security - URPF
    Unicast Reverse Path Forwarding helps mitigate IP spoofing by verifying source addresses.
    Security - Control-Plane Security
    Protects routing engine and critical control-plane traffic against attacks and overload.
    Security - DAI
    Dynamic ARP Inspection validates ARP packets using trusted bindings to prevent ARP spoofing.
    Security - IP Source Guard (IPSG)
    Filters traffic based on IP-to-MAC-to-port bindings to stop IP spoofing on access ports.
    Connectivity
    10 Mbps, 100 Mbps, 1 Gbps, and 10 Gbps IEEE 802.3 Ethernet
    Memory
    4 GB DRAM
    Options
    Available as low queue, base, or extended line card options.
    Physical Dimensions (H × W × D)
    14 × 1.72 × 20.5 in (35.56 × 4.37 × 52.07 cm)
    Card Weight Range
    14 – 19 lb (6.35 – 8.62 kg)
    Power Consumption
    Maximum 350 W – 630 W; typical 310 W – 565 W (depending on card type)
    Operating Temperature (Nominal)
    5 to 40 °C (41 to 104 °F)
    Operating Temperature (Short-Term)
    -5 to 55 °C (23 to 131 °F)
    Operating Humidity (Nominal)
    10% to 85% relative humidity
    Storage Temperature
    -40 to 70 °C (-40 to 158 °F)
    Storage Humidity
    5% to 95% relative humidity (not to exceed 0.024 kg water per 1 kg of dry air)
    Operating Altitude
    -60 to 4000 m (up to 2000 m complies with IEC, EN, UL, and CSA 60950)
    NEBS Standards
    Designed to meet SR-3580 NEBS Level 3, GR-1089-CORE (EMC and Safety), GR-63-CORE (Physical Protection), and VZ.TPR.9205 (Verizon TEEER).
    ETSI Standards
    Designed to meet EN 300 386, ETSI 300 019 Storage Class 1.1, Transportation Class 2.3, Stationary Use Class 3.1, EN 55022 (Emissions), EN 55024 (Immunity), and EN 50082-1 / EN 61000-6-1 Generic Immunity.
    EMC Standards
    Designed to meet FCC Class A, ICES-003 Class A, AS/NZS 3548 Class A, CISPR 22 (EN 55022) 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), and EN 50121-4 Railway EMC.
    Immunity Standards
    Designed to meet IEC/EN 61000-4-2 (ESD, 8 kV contact, 15 kV air), IEC/EN 61000-4-3 (Radiated Immunity 10 V/m), IEC/EN 61000-4-4 (EFT 2 kV power, 1 kV signal), IEC/EN 61000-4-5 (Surge AC port 4 kV CM, 2 kV DM; signal ports 1 kV; DC port 1 kV), IEC/EN 61000-4-6 (Conducted Disturbances 10 Vrms), IEC/EN 61000-4-8 (Power Frequency Magnetic Field 30 A/m), IEC/EN 61000-4-11 (Voltage dips and interruptions), and EN 50121-4 Railway EMC.
    Safety Standards
    Designed to meet UL/CSA/IEC/EN 60950-1, IEC/EN 60825 Laser Safety, ACA TS001, AS/NZS 60950, and FDA CFR Laser Safety.
    Additional Notes
    Line card for Cisco ASR 9000 Series Aggregation Services Routers with medium queue resources and XFP-based 10GE interfaces.
    Weight
    kg

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    Q&A

    Questions & Answers

    Is the Cisco ASR 9000 Line Card A9K-4T-B upgradeable?

    Yes, firmware upgrades for the A9K-4T-B are periodically released by Cisco, which can enhance performance and add new features.

    What kind of troubleshooting is common for the A9K-4T-B?

    Common troubleshooting includes checking connections of XFPs and ensuring proper firmware versions are installed for optimal performance.

    What are the characteristics of using the A9K-4T-B in a network?

    It provides high-speed 10GE connectivity, supports redundancy, and ensures high availability in complex network environments.

    Is router-switch.com a reliable distributor?

    Absolutely. As a multi-brand authorized distributor, router-switch.com is directly certified by leading technology manufacturers. We guarantee 100% genuine products, competitive pricing, and full manufacturer warranties and support.

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