Ciena uses cookies to ensure that we give you the best experience when visiting our website, as well as to enhance the overall quality of our site. By continuing, we assume that you consent to receive all cookies on all Ciena websites. To consent to receive all cookies on all Ciena websites, click I acknowledge. To learn more, view our privacy policy.

6500 T-Series

6500 Packet-Optical Platform

6500 T-Series

With the ability to scale to Terabit/s switching per slot and efficiently switch >400G wavelengths, Ciena’s 6500 T-Series Packet-Optical Platform leverages the latest technology innovation to address the growing need to maintain profitable delivery of multi-layer services on demand, for a superior customer experience.


No. 1

Addresses ultra-high capacity requirements using less hardware via multi-layer capabilities and programmability in a single platform

No. 2

Provides significant power and space savings with support of 12 Tb/s of capacity in less than half a rack and 24 Tb/s per rack

No. 3

Leverages fully non-blocking ODU0 granular switching, with ODUFlex capabilities, to quickly respond to on-demand bandwidth needs with the most efficient use of network resources

No. 4

Enables a wide breadth of SLA offerings with intelligent OTN control plane

No. 5

Offers industry-leading coherent technology with programmability required to build on-demand, programmable networks

No. 6

Delivers support for IP VPN and MPLS L2 VPN services, including VPWS and VPLS

3D Product View


  • +6500 T-Series Shelf
    • 6500-T12
    • 6500-T24
  • +Physical Dimensions
    • 6500-T12
      • 17U 754 mm (H) x 498 mm (W) x 433 mm (D)
      • 17U 29.7 in (H) x 19.6 in (W) x 17.0 in (D)
    • 6500-T24
      • 36U 1590 mm (H) x 498 mm (W) x 433 mm (D)
      • 36U 62.6 in (H) x 19.6 in (W) x 17.0 in (D)
      • Shelf in 44RU EIA Rack :
        • 2134 mm (H) x 660 mm (W) x 457 mm (D)
        • 84.0 in (H) x 26.0 in (W) x 18.0 in (D)
  • +Mounting Options
    • 6500-T12
      • ETSI, EIA 23 in.
    • 6500-T24
      • Pre-mounted in EIA 23 in. rack
  • +Cooling
    • Energy-efficient, variable speed, redundant, and field-replaceable shelf fan modules
  • +Power
    • Redundant, field-replaceable power input modules
    • Operational input voltage: -40V to -75Vdc
  • +Control and Timing Module
    • Redundancy supported
  • +Switch Modules
    • 1 Tb/s switching per slot, up to 12 Tb/s per T12 shelf and up to 24 Tb/s per T24 shelf
    • 500 Gb/s switching per slot, up to 6 Tb/s per T12 shelf and up to 12 Tb/s per T24 shelf
    • Agnostic for both OTN and packet switching
    • Non-blocking OTN switching, ODU0 granularity – ODU0 to ODU4, including ODUFlex
    • Quality of Service (QoS)-aware packet switching with 8 Classes of Service (CoS)
    • Redundant equipment protection: 3:1 for the T12 and 8:1 for the T24
  • +Service Interfaces
    • 1Tb 3x Universal Sub-Slot (USS) packet/OTN Interface
    • 500G 2xUniversal Sub-Slot (USS)/2xQSFP28 packet/OTN Interface
    • Universal Sub-Slot (USS) Modules
      • 800G WaveLogic 5e USS Module: coherent tunability from 200G to 800G in 50G increments
      • 2 x CFP2-DCO USS Module: including coherent 100G/200G WaveLogic 5 Nano variants
      • 400G WaveLogic Ai USS Module: coherent tunability from 100G to 400G in 50G increments
      • 12x SFP+ USS Module - 10GbE, OTU2, OTU2e, OC192, STM64
      • 5x QSFP28/QSFP+ USS Module - 40GbE, OTU3 (4x 10GbE, 4x OTU2e, 4x OTU2, 4x OC192, 4x STM64), 100GbE, OTU4
    • 40 x 10G SFP+ packet/OTN Module – 10GbE, OC-192, STM-64, OTU2, OTU2e
    • 5 x 100G / 12 x 40G QSFP28/QSFP+ packet/OTN Module – 10GbE, 40GbE, 100GbE, OTU3,OTU4
    • 5 x 100G WaveLogic 3 Nano CFP2 coherent DWDM packet/OTN Module – OTU4
  • +Networking Protocols
    • BGP Prefix Independent Convergence draft-ietfrtgwg-bgp-12
    • RFC 792 Internet Control Message Protocol
    • RFC 826 An Ethernet Address Resolution Protocol
    • RFC 2205 RSVP
    • RFC 2439 BGP Route Flap Damping
    • RFC 2474 Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers
    • RFC 2961 RSVP Refresh Overhead Reduction Extensions
    • RFC 2918 Route Refresh Capability for BGP-4
    • RFC 3031 MPLS architecture
    • RFC 3107 Support BGP carry Label for MPLS
    • RFC 3209 RSVP-TE: Extensions to RSVP for LSP
    • RFC 3392 Capabilities Advertisement with BGP-4
    • RFC 3784 ISIS TE support
    • RFC 3942 Reclassifying Dynamic Host Configuration Protocol version 4 (DHCPv4) Options
    • RFC 3985 Pseudo Wire Emulation Edge-to-Edge (PWE3) Architecture
    • RFC 4090 Fast Reroute Extensions to RSVP-TE for LSP tunnels
    • RFC 4124 Protocol Extensions for Support of Diffserv-aware MPLS Traffic Engineering
    • RFC 4206 Label Switched Paths (LSP) Hierarchy with Generalized Multi-Protocol Label Switching (GMPLS) Traffic Engineering
    • RFC 4271 A Border Gateway Protocol 4 (BGP-4)
    • RFC 4272 BGP Security Vulnerabilities Analysis
    • RFC 4360 BGP Extended Communities Attribute
    • RFC 4364 BGP/MPLS IP Virtual Private Networks (VPNs)
    • RFC 4385 Pseudowire Emulation Edge-to-Edge (PWE3) Control Word for Use over an MPLS PSN”
    • RFC 4447 Pseudowire Setup & Maintenance using Label Distribution Protocol (LDP)
    • RFC 4448 Encapsulation Methods for Transport of Ethernet over MPLS Networks (PW over MPLS)
    • RFC 4456 BGP Route Reflections: An Alternative to Full Mesh Internal BGP (IBGP)
    • RFC 4664 Framework of L2VPN (VPLS/VPWS)
    • RFC 4665 Service Requirement of L2 VPN
    • RFC 4724 Graceful Restart Mechanism for BGP
    • RFC 4762 VPLS (Virtual Private LAN Service) and Hierarchical VPLS (H-VPLS)
    • RFC 4893 BGP Support for Four-octet AS Number Space
    • RFC 4906 Transport of Layer 2 Frames Over MPLS
    • RFC 5036 LDP Specification
    • RFC 5085 Pseudowire Virtual Circuit Connectivity Verification (VCCV): A Control Channel for Pseudowires
    • RFC 5287 Control Protocol Extensions for the Setup of Time-Division Multiplexing (TDM) Pseudowires in MPLS Networks
    • RFC 5291 Outbound Route Filtering Capability for BGP-4
    • RFC 5292 Address-Prefix-Based Outbound Route Filter for BGP-4
    • RFC 5301 Dynamic Hostname Exchange Mechanism for IS-IS
    • RFC 5303 Three-Way Handshake for IS-IS Point-to-Point Adjacencies
    • RFC 5305 IS-IS Extensions for Traffic Engineering
    • RFC 5493 BGP capabilities advertisement
    • RFC 5586 Generic Associated Channel Label
    • RFC 5654 MPLS-Transport Profile (TP)
    • RFC 5880 Bidirectional Forwarding Detection
    • RFC 5884 LSP Bidirectional Forwarding Detection (BFD) via GAL/G-Ach channels
    • RFC 6215 MPLS Transport Profile User-to-Network and Network-to-Network Interfaces
    • RFC 6391 Flow-Aware Transport of Pseudowires over an MPLS Packet Switched Network
    • RFC 6426 MPLS On-demand Connectivity Verification and Route Tracing
    • RFC 6428 LSP and PW Connectivity Verification and Trace Route
    • RFC 7130 Bidirectional Forwarding Detection (BFD) on Link Aggregation Group (LAF) Interfaces
    • RFC 7311 The Accumulated IGP Metric Attribute for BGP
    • RFC 7490 Remote Loop-Free Alternate (LFA) Fast Reroute (FRR)
    • RFC 7911 Advertisement of Multiple Paths in BGP
    • RFC 8102 Remote-LFA Node Protection and Manageability
    • RFC 8214 Virtual Private Wire Service Support in Ethernet VPN
    • RFC 8333 Micro-Loop Prevention by introducing a Local Convergence Delay
    • RFC 8402 Segment Routing Architecture
    • RFC 8660 Segment Routing with MPLS Data Plane
    • RFC 8667 IS-IS Extensions for Segment Routing
    • Segment Routing Policy Architecture draft-ietf-springsegment-routing-policy-08
  • +Environment Characteristics
    • Normal Operating Temperature
      • +5°C to +40°C (+41° F to + 104° F)
    • Short Term Operating Temperature
      • -5° C to +50° C (+23° F to +122° F)
    • Normal Operating Humidity
      • 5% to 85% RH
    • Earthquake/seismic
      • Zone 4

Questions? Ask the community.


Want to know more about the 6500 T-Series? Let's talk.

Contact us
Can we help you answer a question?
Are you a current Ciena customer?
Do you need support on an existing product?
We're happy to help!
Do you want to learn more about Ciena's products?
Here's some useful information
Do you want to learn more about Ciena's products?
Do you need support on an existing product?
Here's some useful information
Subscribe now for the latest Network Insights.
White close image
Thank you! You have subscribed successfully.
White close image