Juniper QFX5120 Switch

The Juniper Networks® QFX5120 Switch delivers high scale, high availability, and high performance for data center and campus deployments. The QFX5120 switch is a versatile routing and switching platform addressing higher server access speed and campus distribution use cases while offering high-density 1GbE/10GbE/25GbE and 100GbE uplinks for collapsed spine data center or campus core 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.

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 4 Tbps L2 and L3 performance (bidirectional), with latency as low as 550 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 4 Tbps L2 and L3 performance (bidirectional), with latency as low as 550 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 56x10/25GbE, 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 2.16 Tbps L2 and L3 performance (bidirectional), with latency as low as 550 nanoseconds
    — A 2.2 GHz quad-core Intel CPU with 16 GB memory and 100 GB SSD storage

Using breakout cables, each 100GbE QSFP28 port can be broken into four 25GbE SFP28 ports, while each 40GbE QSFP+ port can be broken into four 10GbE SFP+ ports, increasing the total number of 25GbE and 10GbE ports per switch to 72.

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 6.4 Tbps L2 and L3 performance (bidirectional), with latency as low as 550 nanoseconds

Using breakout cables, each 100GbE QSFP28 port can be broken into four 25GbE SFP28 ports and each 40GbE QSFP+ port can be broken into four 10GbE SFP+ ports, increasing the total number of 25GbE and 10GbE ports per switch to 128.

‣    Switching Capacity:
      — QFX5120-48Y: 4 Tbps (bidirectional)/1.31 Bpps
      — QFX5120-48YM: 4 Tbps (bidirectional)/1.31 Bpps
      — QFX5120-48T: 2.16 Tbps (bidirectional)/1001.7 Mpps
      — QFX5120-32C: 6.4 Tbps (bidirectional)/2 Bpps
      — Switching mode (all models): Cut-through and store-and-forward

‣    Weight:
      — QFX5120-48Y: 23.7 lb (10.75 kg)
      — QFX5120-48YM: 24.8 lb (11.25 kg)
      — QFX5120-48T: 24.25 lb (11 kg)
      — QFX5120-32C: 21.12 lb (9.58 kg)

‣    Dimensions (H x W 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 Mode: Cut-through and store-and-forwar

‣    Front-to-back or back-to-front airflow (for hot aisle/cold aisle deployment)

‣    Management and rear console port connections

‣    Rack Installation Kit: Versatile four post mounting options for 19-in server rack or
      datacom rack

‣    Performance Scale:
      — MAC addresses per system: 288,0000
      — VLAN IDs: 4,093
      — Number of link aggregation groups (LAGs):
          — 80 (QFX5120-48Y/YM, QFX5120-32C)
          — 64 (QFX5120-48T)
      — Number of ports per LAG: 64
      — IPv4 unicast routes: 351,000 prefixes; 208,000 host routes; 64 ECMP paths
      — IPv4 multicast routes: 104,000
      — IPv6 unicast routes: 168,000 prefixes; 104,000 host routes
      — IPv6 multicast routes: 52,000
      — Address Resolution Protocol (ARP) entries: 64,000
      — Jumbo frame: 9216 bytes
      — Spanning Tree Protocol (STP)
      — Multiple Spanning Tree Protocol (MSTP) instances: 64
      — VLAN Spanning Tree Protocol (VSTP) instances: 509
      — Traffic mirroring
      — Mirroring destination ports per switch: 4
      — Maximum number of mirroring sessions: 4
      — Mirroring destination VLANs per switch: 4