DS-C9396T-48ITK9 – 32 Gbps – 96 Port – Fibre Channel Switch

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DS-C9396T-48ITK9 Description

Cisco DS-C9396T-48ITK9 is the port-side intake airflow bundle of the MDS 9396T 32-Gbps Fibre Channel switch. It ships with 48 active 32G FC ports and expands in 16-port steps to the full 96, delivering up to 3 Tbps aggregate bandwidth in a compact 2RU chassis. The platform combines non-blocking throughput with extended buffer-to-buffer credit options for metro and long-distance replication, native NVMe/FC readiness, and hardware-assisted SAN Analytics with model-driven telemetry. Redundant hot-swappable power supplies and fans, plus the ability to distribute port-channels across six 16-port groups, make DS-C9396T-48ITK9 a resilient aggregation/core building block for core-edge or end-of-row topologies that require intake airflow alignment and predictable low latency.

Product Highlights

Rack Units
Speed
Active Ports

Key Features

Aggregation-grade density with staged growth

Start at 48 active ports and scale to 96 in 16-port steps, consolidating many access racks into a stable 2RU core while controlling optics and cabling sprawl.

Distance-tolerant replication and mobility

Extended buffer-to-buffer credits on designated ports help sustain throughput over higher-latency metro links for synchronous/asynchronous copy, workload mobility, and DR exercises.

Analytics-first operations

Hardware-assisted SAN Analytics and model-driven telemetry expose congested paths, slow-drain endpoints, and mis-zoned traffic early, cutting MTTR and improving change windows.

Fault-domain isolation by design

Six 16-port groups and port-channels spread across groups limit blast radius; redundant, hot-swappable PSUs and fans support 24×7 maintenance without service impact.

Secure multi-environment segmentation

VSANs, IVR (license), and centralized AAA/RBAC enable clean separation of dev/test/prod or tenants, with policy consistency for regulated teams and shared infrastructures.

Intake airflow alignment with bundle convenience

Port-side intake matches front-cold aisle policies; bundle SKU simplifies procurement standardization across sites while keeping a single spares profile.

Applications Scenarios

Financial trading and risk analytics

Deterministic 32G fabrics for market-data feeds, risk calculations, and end-of-day processes; analytics verify headroom during bursts and quarterly stress tests.

Energy and geoscience (seismic processing, CAE)

High fan-in from HPC nodes to shared SAN, predictable latency for scratch and reference datasets, and long-distance credits for inter-building replication.

Pharmaceutical R&D and labs

Large instrument data sets and LIMS storage need predictable throughput and isolation; intake airflow fits strict facility cooling policies and mixed rack environments.

Front View

DS-9396T-front

1

LEM slot 1

3

LEM slot 3

2

LEM slot 2

DS-9396T-front

1

Serial console port

5

USB port

2

System status LED

6

Ethernet management ports (2)

3

Power supply status LED

7

Base Fibre Channel ports

4

Fan status LED

8

Airflow Grill

Rear View

DS-9396T-rear

1

Power supply unit fan

5

Power supply units (2)

2

Power supply unit handle

6

Chassis fan modules (2)

3

Power receptacle

7

Fan module locking screw

4

Power supply unit locking latch

DS-9396T-rear

1

Power supply unit slot 1

3

Chassis fan module slot 2

2

Chassis fan module slot 1

4

Power supply unit slot 2

Model Selection Guide – DS-C9396T-48ITK9

  • Choose when you need 48 active 32G FC ports on day one and plan staged growth to 96 (+16-port licenses).
  • Ideal if your site mandates port-side intake airflow (front-cold aisle). This intake bundle helps standardize spares and procurement across locations.
  • Good fit for aggregation/core roles in 2RU where you want to consolidate many access racks and reduce optics/cabling overhead.
  • Suitable for metro/long-distance replication: use extended buffer-to-buffer credits on designated ports with appropriate LR/ER optics; validate end-to-end latency budget.
  • Works well for phased NVMe/FC adoption while retaining SCSI/FCP; policies and workflows remain consistent during migration.
  • Supports multi-tenant segmentation and compliance: VSANs, IVR (license), and centralized AAA/RBAC; automate with NX-API/Ansible and Cisco NDFC/DCNM.
  • Consider if you want analytics-driven ops: hardware-assisted SAN Analytics and model-driven telemetry for capacity planning and faster MTTR.
  • Not ideal if your data center requires port-side exhaust airflow—pick DS-C9396T-48EK9 instead.
  • Not ideal if you need all 96 ports active on day one—choose DS-C9396T-96ETK9 to avoid staged licensing.
  • Not ideal with a strict 1RU height limit—use the 1RU MDS 9148T family (e.g., 24/48 active) instead.
  • For very large cores or features beyond fixed 96-port scale, move to Cisco MDS 9700 series.

Product Comparison

Parameter

DS-C9396T-48IK9

DS-C9396T-48ITK9

DS-C9396T-48EK9

Physical FC ports

96

96

96

Base licensed ports

48

48

48

Port expansion

+16 to 96 (license)

+16 to 96 (license)

+16 to 96 (license)

Port groups

6 × 16

6 × 16

6 × 16

Line-rate speed

32G (auto 4/8/16/32)

32G (auto 4/8/16/32)

32G (auto 4/8/16/32)

Aggregate bandwidth

Up to 3 Tbps

Up to 3 Tbps

Up to 3 Tbps

NVMe/FC

Ready

Ready

Ready

Telemetry/analytics

Hardware-assisted

Hardware-assisted

Hardware-assisted

Long-distance B2B credits

Supported (designated ports)

Supported (designated ports)

Supported (designated ports)

Airflow

Port-side intake (red)

Port-side intake (red)

Port-side exhaust (blue)

SKU type

Standard intake SKU

Intake bundle SKU

Standard exhaust SKU

Typical use

Intake sites, staged growth

Intake sites needing bundle convenience

Exhaust sites, staged growth

Specifications

Parameter Specification Parameter Specification
Product model DS-C9396T-48ITK9 (MDS 9396T family) Form factor 2RU fixed Fibre Channel switch
Physical ports 96 x SFP+/SFP28 Fibre Channel Base licensed ports 48 active; expand in +16-port steps to 96
Port speeds Auto-sensing 4/8/16/32-Gbps FC Aggregate bandwidth Up to 3 Tbps per switch
Port groups Six groups × 16 ports Forwarding Non-blocking, line-rate at 32G (licensed)
NVMe/FC NVMe-ready; coexistence with SCSI/FCP Long-distance credits Extended buffer-to-buffer credits on designated ports
Telemetry/analytics Hardware-assisted SAN Analytics; model-driven telemetry Diagnostics Slow-drain detection; ISL/HBA diagnostics; SPAN/RSPAN
Fabric services VSANs; IVR (license); Smart/Auto Zoning; QoS High availability Redundant hot-swappable PSUs and fans; port-channels across groups
Airflow Port-side intake (red), DS-C96S-FAN-I PSUs 2 × 1200W DS-CAC-1200W (bidirectional airflow)
Power/thermal Per datasheet/project file AC/DC input Per PSU spec (VAC and VDC supported)
Dimensions (H×W×D) Per datasheet Weight Per datasheet
Management NX-OS CLI/SSH, SNMP, REST/NX-API; NDFC/DCNM Security AAA/RBAC (TACACS+/RADIUS/LDAP/AD), FC-SP
Interoperability MDS 9000 family per Cisco compatibility matrix Accessories Rail kit; regional power cords; optics ordered separately

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Quality Certifications

Customer Reviews

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    Yoda
    Posted on 15/07/2024
    Verified Buyer
    5.0

    Powerful switch it is. Flow data well it does.

    SAN Admin
    Posted on 05/03/2024
    Verified Buyer
    5.0

    Industrial reliable. We run these 24/7. No issues.

    Logistics
    Posted on 08/12/2023
    Verified Buyer
    5.0

    Excellent packaging for international freight.

Questions & Answers

  • For DS-C9396T-48ITK9 starting at 48 ports, what’s a sensible growth plan that avoids recabling when we expand to 96 active ports next year?

    Reserve contiguous port blocks and pre-label trunks. Use modular cabling in panels, leaving shadow capacity. When activating new ports, mirror existing VSAN and zoning templates to maintain symmetry and predictable failover.
  • How can I leverage SAN port-channels on a partially populated 9396T to smooth migration from 16G to 32G without weekend-long outages?

    Stand up new 32G trunks alongside 16G, build separate port-channels per speed, and swing traffic per host group. Once steady, remove 16G members. This avoids mixed-speed trunks and keeps behavior consistent.
  • Does DS-C9396T-48ITK9 support NVMe/FC at initial 48-port scale, or should I wait until full activation?

    It supports NVMe/FC at any scale if code and endpoints allow. Start with critical workloads, watch queue depths and credit usage, then expand once stability and performance meet expectations.
  • What operational metrics matter most in the first 30 days after turning up DS-C9396T-48ITK9?

    Track CRCs, credit starvation, DOM drift, and ISL utilization. Compare to your baselines, and run synthetic IO during peak windows to confirm no hidden hotspots.
  • We have mixed MMF and SMF runs. How do I prevent accidental SW-to-LW mismatches when adding ports on the 9396T?

    Color-code jumpers, label panels MMF/SMF, segregate spares, and require optical validation before mating. A short checklist prevents hours of chasing silent, light-level failures.
  • What is the recommended zoning model when onboarding new hosts in batches on DS-C9396T-48ITK9?

    Use single-initiator zoning and device aliases. Apply standardized templates by application tier, and validate with non-disruptive path testing before handing over to operations.
  • How do I isolate whether an intermittent path issue is the optic, fiber, or host HBA?

    Swap cords, clean connectors, move optics between ports, and compare DOM. If errors track the HBA port despite clean optics, review driver/firmware and queue depth settings.
  • Can I run IVR between VSANs on the DS-C9396T-48ITK9 from day one?

    Yes, if licensed in your bundle. Keep IVR policies tight, document routes, and monitor for unexpected flows. Start small and expand once behavior is confirmed.
  • What’s the safest process to upgrade NX-OS on a partially populated chassis?

    Upgrade one fabric, confirm ISSU support, pre-stage images, and monitor application SLOs. Only after verifying counters and logs should you proceed with the second fabric.
  • Which spares should I stock on-site for DS-C9396T-48ITK9?

    Hold SW/LW 32G optics, a few 16G for legacy endpoints, OM4 jumpers, SMF patch cords, cleaning kits, and at least one spare fan/PSU per site.

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  • DS-C9396T-48ITK9 Datasheet

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