C9400-LC-24XY – 20x 25G SFP28 + 4x 10G SFP+ Ports – Supervisor 2 Required – Cat 9400 Line Card

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C9400-LC-24XY Description

The C9400-LC-24XY is a Cisco Catalyst 9400 Series 25G line card for modular campus switches that aggregate access and distribution links over fiber. The card has twenty 25G SFP28 ports and four 10G SFP+ ports usable at the same time, with 480 Gbps of bandwidth per slot on C9400X-SUP-2XL or 240 Gbps on C9400X-SUP-2. The card requires C9400X-SUP-2 or C9400X-SUP-2XL and is not supported on C9400-SUP-1, C9400-SUP-1XL or C9400-SUP-1XL-Y.

Quick Specs

Parameter

Specification

Product ID

C9400-LC-24XY

Ports

Up to 20 ports of 25GE SFP28 and 4 ports of 10GE SFP+, usable simultaneously without any restrictions

Supervisor requirement

C9400X-SUP-2 or C9400X-SUP-2XL only; not supported on C9400-SUP-1, C9400-SUP-1XL or C9400-SUP-1XL-Y

Bandwidth per slot

480 Gbps at 1.125:1 with C9400X-SUP-2XL, 240 Gbps at 2.25:1 with C9400X-SUP-2, on all three chassis

Compatible chassis

C9404R, C9407R and C9410R, scaling to 40, 100 and 160 ports at 25G respectively

Security and frames

IEEE 802.1AE MACsec-256 in hardware, jumbo frames to 9216 bytes

Maximum rated power

200 W

Physical form

Occupies one chassis slot, 1.6 x 14.92 x 14.57 in. (4.06 x 37.90 x 37.00 cm)

Minimum software release

Cisco IOS XE 17.12.1

Application Scenarios

25G Campus Aggregation Layer

A modular core or distribution chassis terminates 25G SFP28 uplinks from access switches, and the card’s twenty 25G ports carry those links into the Catalyst 9400 backplane.

Mixed 10G And 25G Fiber Plant

In a building where part of the fiber still runs at 10G, the four SFP+ ports and the SFP28 ports operate together in the same slot, so servers and switches can move to 25G in stages.

Product Comparison

Parameter

C9400-LC-24XY

C9400-LC-12QC

C9400-LC-48XS

Port speed

20 x 25G (SFP28) and 4 x 10G (SFP+)

12 x 40G (QSFP+), or 4 x 100G (QSFP28) and 4 x 40G (QSFP+)

48 x 10G (SFP+) or 48 x 1G (SFP)

Ports in C9410R

160 at 25G

32 at 100G or 96 at 40G

384 at 10G

Bandwidth per slot with C9400X-SUP-2XL

480 Gbps at 1.125:1

480 Gbps at 1:1 in 12 x 40G default mode

480 Gbps at 1:1

Bandwidth per slot with C9400X-SUP-2

240 Gbps at 2.25:1

240 Gbps at 2:1 in 12 x 40G default mode

240 Gbps at 2:1

Supervisor engine

C9400X-SUP-2 or C9400X-SUP-2XL

C9400X-SUP-2 or C9400X-SUP-2XL

C9400X-SUP-2 or C9400X-SUP-2XL

Minimum software release

Cisco IOS XE 17.12.1

Cisco IOS XE 17.12.1

Cisco IOS XE 17.8

C9400-LC-24XY is the 25G card of this group, with 20 SFP28 ports plus 4 SFP+ ports, while C9400-LC-12QC provides 12 QSFP+ ports at 40G or 4 QSFP28 ports at 100G plus 4 QSFP+ ports at 40G, and C9400-LC-48XS provides 48 SFP+ ports at 10G or 48 SFP ports at 1G. Links that need 40G or 100G belong on C9400-LC-12QC, which reaches 32 ports at 100G in a full C9410R. Sites that need 10G or 1G density, up to 384 ports in a full C9410R, should use C9400-LC-48XS, which also runs from Cisco IOS XE 17.8 against 17.12.1 for the other two cards. With C9400X-SUP-2XL, C9400-LC-24XY holds 1.125:1 oversubscription, rising to 2.25:1 with C9400X-SUP-2, against 1:1 and 2:1 on the other two cards.

Ordering Checklist

  • Catalyst 9400 chassis: Use a C9404R, C9407R or C9410R. The card installs only in a line-card slot of these chassis; supervisor slots do not accept it.
  • Supervisor engine: Specify C9400X-SUP-2 or C9400X-SUP-2XL. C9400-SUP-1, C9400-SUP-1XL and C9400-SUP-1XL-Y are not supported, so a chassis with a Supervisor 1 class engine cannot run this card.

Front View

C9400-LC-24XY

1

STATUS LED

5

Captive installation screws

2

LOCATE (blue beacon) LED

6

Ejector levers

3

Vent holes for the port cage

7

PORT LINK LED

4

Model or product number

8

Line card Radio Frequency Identifier (RFID)

C9400-LC-24XY

On the C9400-LC-24XY line card:

  • The figure illustrates four distinct port groups.
  • In each port group:
    • 4 ports support 25 Gbps connectivity.
    • 1 port supports 10 Gbps connectivity.
    • The total bandwidth per group is up to 120 Gbps.
    • As a result, one port per group remains unused to stay within the bandwidth limit.

Specifications

Parameter Specification Parameter Specification
Product ID C9400-LC-24XY Cisco ordering description Cisco Catalyst 9400 Series 20-Port 25G (SFP28) and 4-Port 10G (SFP+), spare part number C9400-LC-24XY=
Total ports 24 ports 25GE ports Up to 20 ports of 25GE SFP28
10GE ports 4 ports of 10GE SFP+ Simultaneous use SFP28 and SFP+ usable simultaneously on the same card without any restrictions
Supervisor requirement C9400X-SUP-2 or C9400X-SUP-2XL; not supported on C9400-SUP-1, C9400-SUP-1XL or C9400-SUP-1XL-Y Compatible chassis C9404R, C9407R and C9410R
Bandwidth per slot with C9400X-SUP-2XL 480 Gbps at 1.125:1 oversubscription on all three chassis Bandwidth per slot with C9400X-SUP-2 240 Gbps at 2.25:1 oversubscription on all three chassis
Port scaling by chassis 20 to 40 ports at 25G and 24 to 48 overall in C9404R, 20 to 100 and 24 to 120 in C9407R, and 20 to 160 and 24 to 192 in C9410R Positioned deployments High-performance high-density 25 Gigabit Ethernet aggregation in the campus, core switching in small to medium-sized networks, and enterprise backbone and collapsed access deployments
Migration support Ports usable interchangeably at 10 Gigabit Ethernet and 25 Gigabit Ethernet to support phased migration Encryption IEEE 802.1AE MACsec-256 capability in hardware
Frame handling Layer 2 to Layer 4 jumbo frame support up to 9216 bytes Forwarding architecture Functionally transparent; packet processing, queuing, buffering and QoS run on the supervisor engine, with dedicated bandwidth from each line-card slot to the supervisor
Maximum rated power 200 W Typical power draw Approximately 40 to 75 percent of the maximum rated value
MTBF 508,152 hours Minimum software release Cisco IOS XE 17.12.1
Physical dimensions (H x W x D) 1.6 x 14.92 x 14.57 in. (4.06 x 37.90 x 37.00 cm), occupying one chassis slot Standards IEEE 802.3z, 802.3x, 802.3ab, 802.3bt, 802.3at, 802.3af, 802.3az, 802.3bz and 802.3an
EtherChannel 10 Gigabit EtherChannel on all 10 Gbps ports, IEEE 802.3ad LACP and PaGP, 16 ports per tuple with LACP and 8 with PaGP, and EtherChannel across line cards Operating temperature -5°C to +45°C (23°F to 113°F) up to 6,000 feet and -5°C to +40°C (23°F to 104°F) up to 10,000 feet, with 0°C minimum ambient for cold startup
Short-term exceptional conditions -5°C to +55°C (23°F to 131°F) up to 6,000 feet and -5°C to +50°C (23°F to 122°F) up to 10,000 feet Storage temperature -40°C to 70°C (-40°F to 158°F)
Operating humidity 10 to 95 percent, noncondensing Operating altitude -60 to 3000m
Safety certifications UL 60950-1, CAN/CSA-C222.2 No. 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1 and IEEE 802.3, with fiber optic lasers rated Class 1 EMC certifications 47 CFR Part 15, CISPR22 Class A, EN 300 386 V1.6.1, EN 55022 Class A, EN 55032 Class A, CISPR 32 Class A, EN61000-3-2, EN61000-3-3, ICES-003 Class A, TCVN 7189 Class A, V-3 Class A, CISPR24, EN55024 and TCVN 7317
RoHS compliance ROHS5 Optics support reference Supported optical modules and their minimum software releases are published in the Cisco transceiver module device support tables rather than in the line card data sheet

Quality Certifications

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Questions & Answers

  • Which chassis and supervisor engines can host C9400-LC-24XY?

    C9400-LC-24XY installs in a line-card slot of a C9404R, C9407R or C9410R chassis and runs only with C9400X-SUP-2 or C9400X-SUP-2XL. C9400-SUP-1, C9400-SUP-1XL and C9400-SUP-1XL-Y do not support the card. Supervisor slots do not accept it.
  • What minimum software release does C9400-LC-24XY need?

    C9400-LC-24XY has a minimum software release of Cisco IOS XE 17.12.1. The card pairs only with C9400X-SUP-2 or C9400X-SUP-2XL, so the supervisor in the chassis must run that release or a later one.
  • How are the 24 ports of C9400-LC-24XY grouped, and how many 25G ports run at line rate per group?

    C9400-LC-24XY has four stub-ASIC port groups of six ports each: one 10G SFP+ port from ports 1 to 4 plus five SFP28 ports. Per group, 1x10G plus 4x25G runs at line rate on C9400X-SUP-2XL, and 1x10G plus 2x25G runs at line rate on C9400X-SUP-2.
  • Does C9400-LC-24XY have a performance mode that removes oversubscription?

    No. C9400-LC-24XY has no performance mode. Every port stays active, and the oversubscription depends only on the supervisor: 1.125:1 on C9400X-SUP-2XL and 2.25:1 on C9400X-SUP-2 when all ports carry traffic. Per group demand is 135G against 120G or 60G of supervisor feed.
  • How many ports in total can C9400-LC-24XY provide in a C9404R, a C9407R and a C9410R?

    A fully populated chassis holds 48 ports in a C9404R, 120 in a C9407R and 192 in a C9410R. These totals count the 25G and 10G ports together. A single card starts at 24 ports, of which 20 are SFP28 ports, so the totals grow in steps of 24.
  • Can the four 10G SFP+ ports on C9400-LC-24XY form a 10 Gigabit EtherChannel with ports on another line card?

    Yes. The Catalyst 9400 supports 10 Gigabit EtherChannel on 10 Gbps ports and EtherChannel across line cards. LACP allows 16 ports in one bundle and PAgP allows 8, so the four SFP+ ports of C9400-LC-24XY fit within either limit when bundled with ports on another card.

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DataSheet Downloads

  • C9400-LC-24XY Datasheet