ASR LC Typhoon


Typhoon is the second generation of Ethernet line cards for the ASR 9000 routers.


  • Second generation of line cards.
  • Two main types:
    • SE - Service Edge Optimized
    • TR - Packet Transport Optimized


  • The Typhoon line cards has similar components to the Trident LC, with the exception of the Bridge.
  • PHY - stands for the physical layer of the interfaces. Performs functions such as:
    • framing
    • CRC
    • speeds: 10GE, 40GE, 100GE
    • form factors: SFP, SFP+, XFP, QSFP, CFP
    • media/reach: T, SR, LR, ZR, LR4, SR10
    • colors: gray, CWDM, DWDM, Tunable
  • NP - stand for the Network Processor. The NP is used for forwarding and all feature such as:
    • FIB, MAC, ACL, QoS, encap/decap, LPTS, all hardware features, buffer and i/f stats.
    • L2 &L3 forwarding.
    • control plane policing.
  • FIA - stand for Fabric Interface ASIC.
    • FIA is the interface to the backplane switching fabric.
    • This is where the Virtual Output Queues (VOQs) reside.
    • 2PQ + 1BE per egress 10G port. 2 priority queues. 1 best effort
    • Different VOQ are generated for different egress port to prevent head of line blocking.
  • EOBC - stand for Ethernet out-of-band channel.
    • Connects the LC' CPU to the NP and FIA and the RP's CPU.
    • This is an internal 1G switch used for control plane packets.
    • Local Packet Transport Service (LPTS) runs over EOBC for internal communication to the the RP's CPU.
  • LC CPU
    • Program HW forwarding tables.
    • Software switch packets.
    • Netflow.



  • 24 port 10 GE, requires SFP+
    • A9K-24X10GE-SE
    • A9K-24X10GE-TR


  • 36 port 10 GE, requires SFP+
    • A9K-36X10GE-SE
    • A9K-36X10GE-TR


  • 2 port 100 GE, requires CFP-100G-LR4.
    • A9K-2X100GE-SE
    • A9K-2X100GE-TR


  • 1 port 100G, requires CFP-100G-LR4.
    • A9K-1X100GE-SE
    • A9K-1X100GE-TR

MOD - Modular Line Cards

  • MOD are Modular Line Cards, which allow you to insert various port adapters called Modular Port Adapters (MPAs).
  • They are still part of the Typhoon generation of line cards.
  • There are two types of MODs: MOD80 and MOD160.


  • Modular Line Card with 80 Gbps and two network processing units.
    • A9K-MOD80-SE
    • A9K-MOD80-TR
  • Mapping which port is assigned to which NP can be done with the command show controller np all location.


  • Modular Line Card with 160 Gbps and four network processing units.
    • A9K-MOD160-SE
    • A9K-MOD160-TR
  • Modular Port Adapters - most of these fit into both MOD80s and MOD160 with few exceptions based on the bidirectional bandwidth calculation.
    • A9K-MPA-20x1GE - 20-port 1 GE Ethernet Modular Port Adapter, requires SFP
    • A9K-MPA-2x10GE - 2-port 10 GE Ethernet Modular Port Adapter, requires XFP
    • A9K-MPA-4x10GE - 4-port 10 GE Ethernet Modular Port Adapter, requires XFP
    • A9K-MPA-8x10GE - 8-port 10 GE Ethernet Modular Port Adapter, requires SFP+ (MOD160 only)
    • A9K-MPA-1x40GE - 1-port 40 GE Ethernet Modular Port Adapter, requires QSFP
    • A9K-MPA-2x40GE - 2-port 40 GE Ethernet Modular Port Adapter, requires QSFP (MOD160 only)

Relevant Commands

show controllers np ports all location

Show the mapping for the port to NP and bridge.

RP/0/RSP0/CPU0:r01#    show controllers np ports all location (LC CPU)

Additional Resources

Cisco ASR 9000 Modular Line Card and Modular Port Adapters - Cisco


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