The QFX5120 Switch delivers rich, low latency Layer 2/Layer 3 features and advanced EVPN-VXLAN capabilities, making it an ideal data center top-of-rack and distribution switch for campus enterprise deployments. The QFX5120 Switch includes four compact 1 U platforms—the QFX5120-48Y, the QFX5120-48YM, the QFX5120-48T, and the QFX5120-32C—that provide wire-speed packet performance, very low latency, and a rich set of Junos operating system features.
Featuring L3 gateway capabilities for routing between virtualized and bare-metal servers, the QFX5120 is designed for extremely agile data centers that require support for overlay/underlay network architectures. Native 25GbE with 100GbE uplink ports on the QFX5120-48Y and QFX5120-48YM, 10GbE/1GbE copper with 100GbE uplink ports on the QFX5120-48T, and 32 100GbE ports on the QFX5120-32C make the QFX5120 family ideal for spine-and-leaf network deployments.
QFX5120-48Y
The QFX5120-48Y is a 25GbE/100GbE data center leaf and campus distribution switch featuring:
48 25GbE (SFP28)/10GbE (SFP+)/1GbE (SFP) downlink ports
Eight 100GbE (QSFP28)/40GbE (QSFP+) uplink ports
Up to 2/4 Tbps (uni/bidirectional) of L2 and L3 performance, with latency as low as 800 nanoseconds
A 2.2 GHz quad-core Intel CPU with 16 GB memory and 50 GB SSD storage
Using breakout cables, each of the eight 100GbE QSFP28 ports can be broken into four 25GbE SFP28 ports, while each 40GbE quad small form-factor pluggable plus (QSFP+) transceiver ports can be broken into four 10GbE small form-factor pluggable plus (SFP+) transceiver ports, increasing the total number of supported 25GbE and 10GbE ports per switch to 80.
QFX5120-48YM
The QFX5120-48YM is a 10GbE/25GbE/100GbE data center leaf and campus distribution switch featuring:
48 25GbE (SFP28)/10GbE (SFP+)/1GbE (SFP) downlink ports
Eight 100GbE (QSFP28)/40GbE (QSFP+) uplink ports
Up to 2/4 Tbps (uni/bidirectional) of L2 and L3 performance, with latency as low as 800 nanoseconds
Media Access Control Security (MACsec) AES-256 support across all ports
A 2.9 GHz quad-core Intel CPU with 16 GB memory and 100 GB SSD storage
When using breakout cables, two of the 100GbE QSFP28 ports (ports 50 and 52) can be broken into four 25GbE SFP28 or four 10GbE SFP+ ports, increasing the maximum number of 10GbE/25GbE ports supported to 56. When using breakouts, the total number of all ports on the switch, including 6x100GbE ports and 56×10/25GbE, is 62.
QFX5120-48T
The QFX5120-48T is a 10GbE/100GbE data center leaf and campus distribution switch featuring:
48 dual-speed 1GbE/10GbE RJ-45 copper downlink ports
Six dual-speed 100GbE (QSFP28)/40GbE (QSFP+) uplink ports
Up to 1.08/2.16 Tbps (uni/bidirectional) of L2 and L3 performance, with latency as low as 800 nanoseconds
A 2.2 GHz quad-core Intel CPU with 16 GB memory and 100 GB SSD storage
Using breakout cables, 40GbE QSFP+ ports 50 and 51 can be channelized into four 10GbE SFP+ ports each, increasing the total number of 10GbE ports per switch to 56.
QFX5120-32C
The QFX5120-32C is a compact 100GbE data center leaf-and-spine and campus distribution switch featuring:
32 100GbE (QSFP28) or 40GbE (QSFP+) uplink ports
A 2.2 GHz quad-core Intel CPU with 16 GB memory and 64 GB SSD storage
Up to 3.2/6.4 Tbps (uni/bidirectional) L2 and L3 performance, with latency as low as 800 nanoseconds
Using breakout cables, 100GbE QSFP28 ports 0-30 can be channelized into four 25GbE SFP28 ports*, and the 40GbE QSFP+ ports 0-30 can be channelized into four 10GbE SFP+ ports, increasing the total number of 25GbE per switch to 124 and the total number of 10GbE ports per switch to 126 (including SFP+ ports 32 and 33). Port 31 does not support 4x10G or 4x25G channelization options. Only 100GbE, 40GbE, and 2x50GbE channelization options are supported on port 31.
Table 1. QFX5120 Switch Specifications
Product Number | Description |
Form factor | QFX5120-48Y: Fixed 1 U access/leaf QFX5120-48T: Fixed 1 U access/leaf QFX5120-32C: Fixed 1 U spine/access/leaf |
Dimensions (W x H x D) | QFX5120-48Y: 1.72 x 17.36 x 20.48 in. (4.37 x 44.09 x 52.02 cm) QFX5120-48YM: 1.72 x 17.36 x 20.48 in. (4.37 x 44.09 x 52.02 cm) QFX5120-48T: 1.72 x 17.36 x 20.48 in. (4.37 x 44.09 x 52.02 cm) QFX5120-32C: 1.7 x 17.26 x 20.27 in. (4.32 x 43.84 x 51.5 cm) |
Switching capacity | QFX5120-48Y: 4 Tbps (bidirectional)/2 Bpps QFX5120-48YM: 4 Tbps (bidirectional)/2 Bpps QFX5120-48T: 2.16 Tbps (bidirectional)/1 Bpps QFX5120-32C: 6.4 Tbps (bidirectional)/2 Bpps |
Port densities(10/25/40/50/100/400GbE) | QFX5120-48Y: QFX5120-48T: QFX5120-32C: |
Power consumption | QFX5120-48Y QFX5120-48YM QFX5120-48T QFX5120-32C |
Buffer capacity | 32MB |
MAC addresses | 288,000 |
IPv4 unicast/multicast routes | 351,000/104,000 |
IPv6 unicast/multicast routes | 168,000/52,000 |
Number of VLANs | 4,093 |
ARP entries | 64,000 |
Latency | 800 ns |
Overlay Management and Protocols | Contrail Networking, VXLAN OVSDB, EVPN-VXLAN |
Table 1. QFX5120 Switch Ordering Information
Product | Description |
Switch Hardware | |
QFX5120-48Y-AFI2 | QFX5120-48Y, 48x25GbE+8x100GbE, 1 U, AC airflow in |
QFX5120-48Y-AFO2 | QFX5120-48Y, 48x25GbE+8x100GbE, 1 U, AC airflow out |
QFX5120-48Y-DC-AFI2 | QFX5120-48Y, 48x25GbE+8x100GbE, 1 U, DC airflow in |
QFX5120-48Y-DC-AFO2 | QFX5120-48Y, 48x25GbE+8x100GbE, 1 U, DC airflow out |
QFX5120-48YM-AFI | 48x25GbE+8x100GbE MACsec AES256 switch, AC, back-to-front air flow |
QFX5120-48YM-AFO | 48x25GbE+8x100GbE MACsec AES256 switch, AC, front-to-back air flow |
QFX5120-48YM-DC-AI | 48x25GbE+8x100GbE MACsec AES256 switch, DC, back-to-front air flow, DC power |
QFX5120-48YM-DC-AO | 48x25GbE+8x100GbE MACsec AES256 switch, AC, front-to-back air flow, DC power |
QFX5120-48T-AFI | QFX5120-48T, 48x10GbE+6x100GbE, 1 U, AC airflow in |
QFX5120-48T-AFO | QFX5120-48T, 48x10GbE+6x100GbE, 1 U, AC airflow out |
QFX5120-48T-DC-AFI | QFX5120-48T, 48x25GbE+6x100GbE, 1 U, DC airflow in |
QFX5120-48T-DC-AFO | QFX5120-48T, 48x25GbE+6x100GbE, 1 U, DC airflow out |
QFX5120-32C-AFI | QFX5120-32C, 32x100GbE, 1 U, AC airflow in |
QFX5120-32C-AFO | QFX5120-32C, 32x100GbE, 1 U, AC airflow out |
QFX5120-32C-DC-AFI | QFX5120-32C, 32x100GbE, 1 U, DC airflow in |
QFX5120-32C-DC-AFO | QFX5120-32C, 32x100GbE, 1 U, DC airflow out |
QFX520048Y-APSU-AO | AC Power supply unit, front-to-back airflow for QFX5120-32C-AFO |
QFX520048Y-APSU-AI | AC Power supply unit, back-to-front airflow for QFX5120-32C-AFI |
QFX520048Y-DPSU-AO | DC Power supply unit, front-to-back airflow for QFX5120-32C-DC-AFO |
QFX520048Y-DPSU-AI | DC Power supply unit, back-to-front airflow for QFX5120-32C-DC-AFI |
JPSU-650W-AC-AO | AC Power supply unit, front-to-back airflow for QFX5120-48T-AFO and QFX5120-48Y-AFO2 |
JPSU-650W-AC-AI | AC Power supply unit, back-to-front airflow for QFX5120-48T-AFI and QFX5120-48Y-AFI2 |
JPSU-650W-DC-AFO | DC Power supply unit, front-to-back airflow for QFX5120-48T-DC-AFO and QFX5120-48Y-DC-AFO2 |
JPSU-650W-DC-AFI | DC Power supply unit, back-to-front airflow for QFX5120-48T-DC-AFI and QFX5120-48Y-DC-AFI2 |
JPSU-850W-AC-AFO | AC Power supply unit, front-to-back airflow for QFX5120-48YM-AFO |
JPSU-850W-AC-AFI | AC Power supply unit, back-to-front airflow for QFX5120-48YM-AFI |
JPSU-850W-DC-AFO | DC Power supply unit, front-to-back airflow for QFX5120-48YM-DC-AO |
JPSU-850W-DC-AFI | DC Power supply unit, back-to-front airflow for QFX5120-48YM-DC-AI |
QFX520048Y-FAN-AO | front-to-back airflow fan model for QFX5120-32C models |
QFX520048Y-FAN-AI | back-to-front airflow fan model for QFX5120-32C models |
QFX5110-FANAFO | Front-to-back airflow fan model for QFX5120-48T, QFX5120-48Y, and QFX5120-48YM models |
QFX5110-FANAFI | Back-to-front airflow fan model for QFX5120-48T, QFX5120-48Y, and QFX5120-48YM models |
QFX512032C-RMK | 4 post rack mount kit for QFX5120-32C models |
EX-4PST-RMK | 4 post rack mount kit for QFX5120-48T, QFX5120-48Y, and QFX5120-48YM models |
QFX5K-2PST-RMK | 2 post rack mount kit for QFX5120-32C models |
EX-RMK | 2 post rack mount kit for QFX5120-48T, QFX5120-48Y, and QFX5120-48YM models |
MACsec Encryption Licenses | |
S-QFX5KC1-MACSEC-1 | Class C1 QFX5000, MACsec AES 256 Encryption Sub Software, Term: 1 Yr |
S-QFX5KC1-MACSEC-3 | Class C1 QFX5000, MACsec AES 256 Encryption Sub Software, Term: 3 Yrs |
S-QFX5KC1-MACSEC-5 | Class C1 QFX5000, MACsec AES 256 Encryption Sub Software, Term: 5 Yrs |
S-QFX5KC1-MACSEC-P | Class C1 QFX5000, MACsec AES 256 Encryption Software, Perpetual |
Flex Software Licenses | |
S-QFX5K-C1-A1-3 | Flex Sub Software, Class 1 QFX5000 line, Adv 1, Term: 3 Yrs |
S-QFX5K-C1-A1-5 | Flex Sub Software, Class 1 QFX5000 line, Adv 1, Term: 5 Yrs |
S-QFX5K-C1-A1-P | Flex Software, Class 1 QFX5000 line, Adv 1, Perpetual |
S-QFX5K-C1-A2-3 | Flex Sub Software, Class 1 QFX5000 line, Adv 2, Term: 3 Yrs |
S-QFX5K-C1-A2-5 | Flex Sub Software, Class 1 QFX5000 line, Adv 2, Term: 5 Yrs |
S-QFX5K-C1-A2-P | Flex Software, Class 1 QFX5000 line, Adv 2, Perpetual |
S-QFX5K-C1-P1-3 | Flex Sub Software, Class 1 QFX5000 line, Prem 1, Term: 3 Yrs |
S-QFX5K-C1-P1-5 | Flex Sub Software, Class 1 QFX5000 line, Prem 1, Term: 5 Yrs |
S-QFX5K-C1-P1-P | Flex Software, Class 1 QFX5000 line, Prem 1, Perpetual |
S-QFX5K-C2-A1-3 | Flex Sub Software, Class 2 QFX5000 line, Adv 1, Term: 3 Yrs |
S-QFX5K-C2-A1-5 | Flex Sub Software, Class 2 QFX5000 line, Adv 1, Term: 5 Yrs |
S-QFX5K-C2-A1-P | Flex Software, Class 2 QFX5000 line, Adv 1, Perpetual |
S-QFX5K-C2-A2-3 | Flex Sub Software, Class 2 QFX5000 line, Adv 2, Term: 3 Yrs |
S-QFX5K-C2-A2-5 | Flex Sub Software, Class 2 QFX5000 line, Adv 2, Term: 5 Yrs |
S-QFX5K-C2-A2-P | Flex Software, Class 2 QFX5000 line, Adv 2, Perpetual |
S-QFX5K-C2-P1-3 | Flex Sub Software, Class 2 QFX5000 line, Prem 1, Term: 3 Yrs |
S-QFX5K-C2-P1-5 | Flex Sub Software, Class 2 QFX5000 line, Prem 1, Term: 5 Yrs |
S-QFX5K-C2-P1-P | Flex Software, Class 2 QFX5000 line, Prem 1, Perpetual |
Services Licenses | |
SVC-COR-QFX51-48M | Juniper Care Core Support for QFX5120-48YM Switches |
SVC-ND-QFX51-48M | Juniper Care Next Day Support for QFX5120-48YM |
SVC-COR-QFX5KC1-MS | Juniper Care Core Support for S-QFX5KC1-MACSEC-P |
Advanced Telemetry Feature (ATF) Licenses | |
S-QFX5K-C1-ATF-P | SW, QFX5K, Class 1, ATF License SKU, Perpetual, SVC Customer Support to be purchased separately |
S-QFX5K-C2-ATF-P | SW, QFX5K, Class 2, ATF License SKU, Perpetual, SVC Customer Support to be purchased separately |
