QFX5120-48Y-AFO Specification

Switching Capacity

4 Tbps (bidirectional)/1.31 Bpps

Weight

23.7 lb (10.75 kg)

Dimensions (H x W x D)

1.72 x 17.36 x 20.48 in. (4.37 x 44.09 x 52.02 cm)

Power Consumption

* Max load: 450 W

* Typical load: 260 W

Airflow

* Front-to-back (airflow out) for hot aisle deployment

* Back-to-front (airflow in) for cold aisle deployment

Interface Options

* 2 management ports: 2 x RJ-45 ports

* 1GbE SFP: 48 (24 copper 1GbE)

* 10GbE SFP+: 48/80(with breakout cable)

* 25GbE SFP: 48/80 (with breakout cable)

* 40GbE QSFP+: 8 (each QSFP+ port can be configured as a 4 x 10GbE interface or as a 40 Gbps port)

* 100GbE QSFP28: 8 (each QSFP28 port can be configured as a 4 x 25GbE interface or as a 100 Gbps port)

* SFP GbE optical and copper module

* SFP+ 10GbE optical modules

* SFP+ direct attach copper (DAC) cables: 1/3/5 m twinax copper and 1/3/5/7 m active twinax copper

* SFP28 DAC cables: 1/3 m twinax copper

* SFP28 optics: Short reach (SR), long reach (LR)

* QSFP+ to SFP+: 10GbE direct attach breakout copper (1/3 m twinax copper cable)

Power Supply and Fan Modules

* Dual redundant (1+1) and hot-pluggable 650 W AC/DC power supplies

* 100-240 V single phase AC power

* -48 to -60 V DC power supply

* Redundant 4+1 (QFX5120-48Y/YM and QFX5120-48T) or 5+1 (QFX5120-32C) and hot-pluggable fan modules for front-to- back or back-to-front airflow

Performance Scale (Unidimensional)

* MAC addresses per system: 288,000

* VLAN IDs: 4093

* 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

Layer 2 Features

* STP-IEEE 802.1D (802.1D-2004)

* Rapid Spanning Tree Protocol (RSTP) (IEEE 802.1w); MSTP (IEEE 802.1s)

* Bridge protocol data unit (BPDU) protect

* Loop protect

* Root protect

* RSTP and VSTP running concurrently

* VLAN-IEEE 802.1Q VLAN trunking

* Routed VLAN interface (RVI)

* Port-based VLAN

* Private VLAN (PVLAN)

* VLAN translation

* Static MAC address assignment for interface

* Per VLAN MAC learning (limit)

* MAC learning disable

* Link Aggregation and Link Aggregation Control Protocol (LACP) (IEEE 802.3ad)

* MACsec with AES256 (QFX5120-48YM only)

* Virtual Chassis-up to 4 members

Link Aggregation

* MC-LAG

* LAG load sharing algorithm-bridged or routed (unicast or multicast) traffic

* IP: Session Initiation Protocol (SIP), Dynamic Internet Protocol (DIP), TCP/UDP source port, TCP/UDP destination port

* Layer 2 and non-IP: MAC SA, MAC DA, Ethertype, VLAN ID, source port

Layer 3 Features (IPv4)

* Static routing

* Routing protocols (RIP, OSPF, IS-IS, BGP)

* Virtual Router Redundancy Protocol (VRRP)

* Virtual router

* Dynamic Host Configuration Protocol (DHCP) relay

* Proxy Address Resolution Protocol (ARP)

EVPN-VXLAN Features

* MAC virtual routing and forwarding (MAC-VRF) multiple EVPN instances (EVI) with service-types vlan-based, vlan-aware, vlan-bundle

* Symmetric inter-IRB routing with anycast gateway and EVPN type-5 instances

* Proxy IGMPv2-EVPN route types 6/7/8

* ARP/ND proxy/suppression

* ESI-LAG A/A multihoming using Enterprise and SP-style interfaces

* Enhanced Ethernet loop detection

* Filter-based forwarding on IRB.VGA

* EVPN advanced route policing

* VLAN-id overlapping using SP-style interfaces

Multicast Features

* Internet Group Management Protocol (IGMP): v1, v2, v3

* IGMP snooping: v1, v2, and v3 (Layer 2 only)

* IGMP filter

* Protocol Independent Multicast-Sparse Mode (PIM-SM), PIM-Source-Specific Multicast (PIM-SSM), PIM-Dense Mode (PIM-DM) in pure IP fabric use case

* Multicast Source Discovery Protocol (MSDP)

Security and Filters

* Secure interface login and password

* RADIUS

* TACACS+

* Ingress and egress filters: Allow and deny, port filters, VLAN filters, and routed filters, including management port filters

* Filter actions: Logging, system logging, reject, mirror to an interface, counters, assign forwarding class, permit, drop, mark

* SSH v1, v2

* Static ARP support in pure IP fabric

* Storm control, port error disable, and autorecovery

* Source MAC address filtering on the port

* DHCP snooping in pure IP fabric use case

Quality of Service (QoS)

* L2 and L3 QoS: Classification, rewrite, queuing

* Rate limiting:

Ingress policing: two-rate three-color

Egress shaping: Per queue on each port

* 10 hardware queues per port (8 unicast and 2 multicast)

* Strict-priority queue (SPQ), shaped-deficit weighted round-robin (SDWRR), weighted random early detection (WRED), weighted tail drop

* 802.1p remarking

* Layer 2 classification criteria: Interface, MAC address, Ethertype, 802.1p, VLAN

* Congestion avoidance capabilities: WRED

* Trust IEEE 802.1p (ingress)

* Remarking of bridged packets

* Default inner to outer DiffServ code point (DSCP) copy for EVPN-VXLAN

IP Storage

* Priority-based flow control (PFC)-IEEE 802.1Qbb, DCBX

* PFC using DSCP and explicit congestion notification (ECN) for ROCEv2

High Availability

* Bidirectional Forwarding Detection (BFD)

* Uplink failure detection

MPLS

* Static label-switched paths (LSPs)

* RSVP-based signaling of LSPs

* LDP-based signaling of LSPs

* LDP tunneling (LDP over RSVP)

* MPLS class of service (CoS)

* MPLS LSR support

* IPv6 tunneling (6PE) (via IPv4 MPLS backbone)

* IPv4 L3 VPN (RFC 2547, RFC 4364)

Management and Operations

* Role-based CLI management and access

* CLI via console, telnet, or SSH

* Extended ping and traceroute

* Junos OS configuration rescue and rollback

* Image rollback

* SNMP v1/v2/v3

* Junos XML management protocol

* sFlow v5

* Beacon LED for port and system

* ZTP

* OpenStack Neutron Plug-in

* Python

* Junos OS event, commit, and OP scripts

* JTI

Traffic Mirroring

* Port-based

* LAG port

* VLAN-based

* Filter-based

* Mirror to local

* Mirror to remote destinations (L2 over VLAN)

IEEE Standard

* IEEE 802.1D

* IEEE 802.1w

* IEEE 802.1

* IEEE 802.1Q

* IEEE 802.1p

* IEEE 802.1ad

* IEEE 802.3ad

* IEEE 802.1AB

* IEEE 802.3x

* IEEE 802.1Qbb

* IEEE 802.1Qaz

T11 Standards

INCITS T11 FC-BB-5