C9400-LC-24XS – 24x 10G SFP+ or 1G SFP Ports – All Supervisors – Catalyst 9400 Line Card
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C9400-LC-24XS Description
The C9400-LC-24XS is the Cisco Catalyst 9400 Series 24-Port 10 Gigabit Ethernet (SFP+) line card, a single-slot fiber module supporting up to 24 ports of 10GE SFP+ or 24 ports of 1GE SFP with both optic types usable together on the same card without restrictions. It is the only 10G fiber card in the family that runs on every Catalyst 9400 supervisor engine, from C9400-SUP-1 through C9400X-SUP-2XL, which distinguishes it from the C9400-LC-24XY, C9400-LC-12QC, C9400-LC-48HX, C9400-LC-48TX and C9400-LC-48XS cards that require a Supervisor 2 class engine. Cisco positions it for high-performance, high-density 10 Gigabit Ethernet aggregation in the campus and as a core switch in small to medium-sized networks, and for enterprise backbone and collapsed access deployments, with ports usable interchangeably at 1GE and 10GE to support phased migration. Bandwidth per slot and oversubscription both move with the installed engine: 80 Gbps at 3:1 with C9400-SUP-1, 240 Gbps at 1:1 on a C9404R chassis down to 80 Gbps at 3:1 on a C9410R with the C9400-SUP-1XL class, and 240 Gbps or 480 Gbps at 1:1 with C9400X-SUP-2 and C9400X-SUP-2XL. The card draws a maximum rated 200 W, carries MACsec-256 in hardware and jumbo frames to 9216 bytes, and has shipped since Cisco IOS XE 16.6.2.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9400-LC-24XS |
|
Ports |
Up to 24 ports of 10GE SFP+ or 24 ports of 1GE SFP, usable simultaneously without restrictions |
|
Supported supervisor engines |
C9400-SUP-1, C9400-SUP-1XL, C9400-SUP-1XL-Y, C9400X-SUP-2 and C9400X-SUP-2XL |
|
Bandwidth per slot |
80 Gbps at 3:1 with C9400-SUP-1; 240 Gbps at 1:1, 120 Gbps at 2:1 or 80 Gbps at 3:1 with C9400-SUP-1XL and C9400-SUP-1XL-Y by chassis; 240 Gbps and 480 Gbps at 1:1 with C9400X-SUP-2 and C9400X-SUP-2XL |
|
Compatible chassis |
C9404R, C9407R and C9410R, scaling from 24 to 48, 120 and 192 ports 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 16.6.2 |
Application Scenarios
Installed in rooms where a moderate count of 10G fiber links from access switches or servers terminates directly on the same chassis that carries the routed boundary.
Added to C9404R, C9407R and C9410R chassis already running C9400-SUP-1, C9400-SUP-1XL or C9400-SUP-1XL-Y, where the Supervisor 2 class fiber cards cannot be seated.
Deployed where a fiber plant is moving from 1GE to 10GE run by run, with SFP and SFP+ modules mixed on the same card through the transition.
Product Comparison
|
Parameter |
C9400-LC-24XS | ||
|---|---|---|---|
|
Fiber port count |
24 SFP+ or SFP |
48 SFP+ or SFP |
24 SFP |
|
Port speeds |
10 GE or 1 GE |
10 GE or 1 GE |
1 GE only |
|
Supervisor requirement |
All five supervisor engines |
C9400X-SUP-2 or C9400X-SUP-2XL only |
All five supervisor engines |
|
Oversubscription with C9400-SUP-1 |
3:1 |
Not supported |
1:1 |
|
Oversubscription with C9400X-SUP-2 |
1:1 |
2:1 |
1:1 |
|
Ports in a full C9410R |
192 |
384 |
192 |
|
Minimum software release |
Cisco IOS XE 16.6.2 |
Cisco IOS XE 17.8 |
Cisco IOS XE 16.8.1 |
|
Maximum rated power |
200 W |
250 W |
120 W |
|
Rated MTBF |
545,080 hours |
420,073 hours |
1,104,470 hours |
- Reaching 48 ports of 10G fiber through C9400-LC-48XS costs both a C9400X-SUP-2 class engine and 2:1 oversubscription on that engine, while C9400-LC-24XS runs 1:1 under the same engine at half the ports; a design under about 24 fiber terminations avoids the engine purchase entirely by staying here.
- Dropping to C9400-LC-24S trades 10G capability for a lower 120 W draw and a much higher 1,104,470-hour MTBF at the identical 24-port count and identical slot cost, so a room whose links will not exceed 1 GE is paying for unused speed on this card.
- Oversubscription behavior separates the two 24-port cards on older engines. C9400-LC-24S stays 1:1 with C9400-SUP-1 while C9400-LC-24XS runs 3:1 on the same engine, so 10G ports on a base supervisor engine are contended three to one before any traffic profile is considered.
- For deciding which SKU to order, fix the required port speed first because that separates C9400-LC-24S from the two 10G cards, then count terminations to choose between 24 and 48 ports, and read the installed supervisor engine last since only C9400-LC-48XS makes it a mandatory purchase.
Selection Guide
1. Ten Gigabit Fiber On A Base Supervisor Engine
C9400-LC-24XS is the 10G fiber card an installed C9400-SUP-1, C9400-SUP-1XL or C9400-SUP-1XL-Y chassis can actually accept; reaching 10G fiber any other way in the family means adding C9400X-SUP-2 or C9400X-SUP-2XL to the same order.
2. Three To One Contention On The Base Engine
With C9400-SUP-1 this card runs 3:1 oversubscribed at 80 Gbps per slot, and the C9400-SUP-1XL class only reaches 1:1 in a C9404R chassis; a design that needs sustained line rate across all 24 ports has to land on C9400X-SUP-2 or C9400X-SUP-2XL regardless of which card is chosen.
3. One Hundred Twenty Watts Buys Back Reliability
Where the terminations will stay at 1 GE, C9400-LC-24S keeps the same 24 ports and the same slot for 120 W instead of 200 W and reaches 1,104,470 hours MTBF against 545,080 here, so unused 10G capability costs both power and rated life.
4. Twenty-Four Ports As The Growth Boundary
This card tops out at 192 ports in a fully loaded C9410R against 384 for the 48-port option, so a site expecting fiber counts to double is choosing between filling slots with 24-port cards now and funding a Supervisor 2 class engine once for the denser card.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Supervisor engine present |
Confirm the target chassis holds one of the five supported supervisor engines. |
The card performs no forwarding of its own, so an empty supervisor slot leaves all 24 ports inactive. |
|
Software image floor |
Confirm the chassis runs Cisco IOS XE 16.6.2 or later. |
A chassis staged below that release will not bring the card into service. |
|
Free line-card slot |
Confirm an unused line-card slot exists in the target C9404R, C9407R or C9410R. |
The card takes one full slot, and supervisor slots cannot accept line cards. |
|
Contention against the engine |
Confirm the aggregate traffic plan against 3:1 oversubscription if the chassis runs C9400-SUP-1, or against the chassis-dependent ratio on the C9400-SUP-1XL class. |
Ten gigabit ports on an older engine are contended, and a design sized at line rate will fall short under load. |
|
SFP+ and SFP module line items |
Confirm the 10G and 1G optics are ordered separately and appear on the Cisco device support tables for this platform. |
The line card ships without optics, and an unlisted transceiver may be rejected by the host port. |
|
Fiber type and reach |
Confirm the installed fiber plant matches the mode and reach of the chosen optics at both 1G and 10G. |
Mixing optic speeds on one card does not relax the fiber plant requirements of either speed. |
|
Facility power headroom |
Confirm the chassis power budget absorbs 200 W per card across the planned card count. |
The card sits above the 1G fiber options on draw and adds up quickly across a fully loaded chassis. |
Front View
|
1 |
STATUS LED |
5 |
Ejector levers |
|---|---|---|---|
|
2 |
LOCATE (blue beacon) LED |
6 |
PORT LINK LED |
|
3 |
Model or product number |
7 |
Line card Radio Frequency Identifier (RFID) |
|
4 |
Captive installation screws |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9400-LC-24XS | Cisco ordering description | Cisco Catalyst 9400 Series 24-Port 10 Gigabit Ethernet (SFP+), spare part number C9400-LC-24XS= |
| Port count | Up to 24 ports | Port speed and media | 24 ports of 10GE SFP+ or 24 ports of 1GE SFP, with SFP+ and SFP usable simultaneously on the same card without restrictions |
| Supported supervisor engines | C9400-SUP-1, C9400-SUP-1XL, C9400-SUP-1XL-Y, C9400X-SUP-2 and C9400X-SUP-2XL | Compatible chassis | C9404R, C9407R and C9410R |
| Bandwidth per slot with C9400-SUP-1 | 80 Gbps at 3:1 oversubscription on all three chassis | Bandwidth per slot with C9400-SUP-1XL and C9400-SUP-1XL-Y | 240 Gbps at 1:1 on C9404R, 120 Gbps at 2:1 on C9407R and 80 Gbps at 3:1 on C9410R |
| Bandwidth per slot with C9400X-SUP-2 | 240 Gbps at 1:1 on all three chassis | Bandwidth per slot with C9400X-SUP-2XL | 480 Gbps at 1:1 on all three chassis |
| Port scaling by chassis | 24 to 48 ports in C9404R, 24 to 120 ports in C9407R and 24 to 192 ports in C9410R | Positioned deployments | High-performance high-density 10 Gigabit Ethernet aggregation in the campus, core switching in small to medium-sized networks, and enterprise backbone and collapsed access deployments |
| 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 | Rated MTBF | 545,080 hours |
| Minimum software release | Cisco IOS XE 16.6.2 | 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, Gigabit EtherChannel on all 1000 Mbps ports, IEEE 802.3ad LACP and PaGP, 16 ports per tuple with LACP and 8 with PaGP, and EtherChannel across line cards |
| Operating temperature | 23 to 113 degrees F (-5 to +45 degrees C) up to 6,000 feet and 23 to 104 degrees F (-5 to +40 degrees C) up to 10,000 feet, with 0 degrees C minimum ambient for cold startup | Short-term exceptional conditions | 23 to 131 degrees F (-5 to +55 degrees C) up to 6,000 feet and 23 to 122 degrees F (-5 to +50 degrees C) up to 10,000 feet |
| Storage temperature | -40 to 158 degrees F (-40 to 70 degrees C) | Relative 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 |
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Quality Certifications
Customer Reviews
Questions & Answers
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What is C9400-LC-24XS used for with 24-port 10G SFP+ and 1G fiber?
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Does C9400-LC-24XS support 10G and 1G SFP+ fiber optics?
-
When does C9400-LC-24XS fit instead of C9400-LC-48XS for 10G SFP+ fiber?
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How is C9400-LC-24XS different from C9400-LC-24S for 10G SFP+?
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Is C9400-LC-24XS for copper or PoE access?
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Can C9400-LC-24XS be used for aggregation links?
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When is C9400-LC-24XS wrong for 25G SFP28, QSFP, or PoE?
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What 24-port 10G SFP+ fiber, optics, and slot planning details matter for C9400-LC-24XS?
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