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Hardware

  • New EX4100 Multigigabit switches and EX4100-F switches—Starting in Junos OS Release 22.3R1, we introduce the EX4100 multigigabit family of switches and the compact fanless switches (EX4100-F-12P and EX4100-F-12T) that provide connectivity for high-density environments and scalability for network growth. You can deploy the EX4100 multigigabit switches in modern campus and branch enterprise networks. We support 24-port and 48-port switch variants with POE++ RJ-45 ports. The switches have dedicated Virtual Chassis ports (VCPs) and uplink ports.

    We support the following switches: EX4100-48MP, EX4100-24MP, EX4100-F-12P, and EX4100-F-12T.

    Table 2: Features Supported on EX4100-48MP, EX4100-24MP, EX4100-F-12-P, and EX4100-F-12-T

    Feature

    Description

    Chasssis

    • Support for FRU management, environment monitoring, and chassis support, including:

      • PSU, fan, and temperature sensors monitoring

      • (EX4100-48MP, EX4100-24MP only) Power management support for two power supply units (PSUs) and two field-replaceable fans. The system functions with one fan until it reaches shutdown temperature.

      • When temperature reported by various sensors crosses the specified threshold, the fan speed increases or decreases to regulate the temperature. If the temperature exceeds the shutdown threshold, system shutdown is initiated.

      • Watch timer update during bootup. The CPU default watch time-out is 35 sec.

      [See Understanding Power Management on EX Series Switches.]

    Hardware

    • New EX4100 switch models – We've introduced the following EX4100 ethernet switch models - EX4100-24MP, EX4100-48MP, EX4100-F-12T, and EX4100-F-12P.

      The following are the salient points of the switch models.

      • EX4100-24MP – Eight 1/2.5/5/10-Gbps and sixteen 1-Gbps PoE++ RJ-45 ports; four 10/25-Gbps SFP28 Virtual Chassis ports and four 1/10-Gbps SFP+ uplink ports – all these ports are located on the front panel. EX4100-24MP is powered by AC power supplies and has AFO cooling.

      • EX4100-48MP - Sixteen 1/2.5-Gbps and thirty-two 1-Gbps PoE++ RJ-45 ports; four 10/25-Gbps SFP28 Virtual Chassis ports and four 1/10-Gbps SFP+ uplink ports – all these ports are located on the front panel. EX4100-48MP is powered by AC power supplies and has AFO cooling.

      • EX4100-F-12P – Twelve 1-Gbps PoE+ RJ-45 ports, four 10-Gbps SFP+ Virtual Chassis ports – all of these ports are located on the front panel. Two 1/2.5/ 5/10-Gbps Base-T multigigabit Ethernet PoE-powered uplink ports – are located in the back. The EX4100-F-12P can be powered by AC power or as a powered device. The device has natural convection cooling.

      • EX4100-F-12T – Twelve 1-Gbps non-PoE RJ-45 ports, four 10-Gbps SFP+ Virtual Chassis ports – all of these ports are located on the front panel. Two 1/2.5/ 5/10-Gbps Base-T multigigabit Ethernet uplink ports – are located in the back. The EX4100-F-12T is powered by AC power. The device has natural convection cooling.

      [See EX4100 Hardware Guide].

    • The EX4100-F-12P switch will support powered device functionality. In addition to being powered by AC power, the EX4100-F-12P switch can be powered by another PoE-enabled EX4100 switch.

      [See EX4100 Hardware Guide].

    High Availability and resiliency

    Interfaces

    • EX4100-48MP, EX4100-24MP, EX4100-F-12P, and EX4100-F-12T support the following speeds:

      • EX4100-48MP

      • Downlink ports on PIC 0 (ports 0 - 47). The first 16 are multi-rate ports that support 100-Mbps, 1-Gbps, and 2.5-Gbps. The remaining 32 ports are GigE ports that support 10-Mbps, 100-Mbps, and 1Gbps.

      • VCPs (ports 0–3 on PIC 1) support 4x1-Gbps or 4x10-Gbps or 4x25-Gbps speeds. If you convert the VCPs to network ports, ports 0 through 3 on PIC1 support 1-Gbps or 10-Gbps or 25-Gbps speeds

      • Uplink ports (ports 0–3 on PIC 2) support 4x10-Gbps or 4x1-Gbps speeds.

      • EX4100-24MP

      • Downlink ports on PIC 0 (ports 0–23). The first 8 are multi-rate ports that support 100-Mbps, 1-Gbps, 2.5-Gbps, 5-Gbps, and 10-Gbps. The remaining 16 ports are GigE ports that support 10-Mbps, 100-Mbps, and 1-Gbps.

      • VCPs (ports 0–3 on PIC 1) support 4x1-Gbps or 4x10-Gbps or 4x25-Gbps speeds. If you convert the VCPs to network ports, ports 0 through 3 on PIC1 support 1-Gbps or 10-Gbps or 25Gbps speeds

      • Uplink ports (ports 0–3 on PIC 2) support 4x10-Gbps or 4x1-Gbps speeds.

      • EX4100-F-12P and EX4100-F-12T

      • Downlink ports on PIC 0 (ports 0–11). The 12 ports are GigE ports that support 10-Mbps, 100-Mbps, and 1-Gbps,

      • VCPs (ports 0–3 on PIC 1) support 4x1-Gbps or 4x10-Gbps speeds. If you convert the VCPs to network ports, ports 0 through 3 on PIC1 support 1-Gbps or 10-Gbps speeds

      • Uplink ports are multi-rate ports (ports 0–1 on PIC 2) that support 2x100-Mbps or1-Gbps speeds, 2.5-Gbps, 5-Gbps, and 10-Gbps.

    • Optics support. [See Hardware Compatibility Tool.]

    • Support for Multi-rate Power over Ethernet in EX4100 and EX4100-F switches:

      Apart from the switching capabilities, EX4100 switches will support Multi-rate Ethernet of 1G, 2.5G, 5G, and 10G in multi-rate switches, over existing cabling infrastructure.

      [See Understanding PoE on EX Series Switches.]

    Junos telemetry interface

    • Support for JTI Packet Forwarding Engine and Routing Engine sensor. You can use the Junos telemetry interface (JTI) and remote procedure calls (gRPC) to stream statistics from the switches to an outside collector.

    • Support for secure packet capture to Cloud using JTI. You can use Junos telemetry interface (JTI) to capture packets from a device and send them over a secure channel to an external collector (in the cloud) for monitoring and analysis.

      To use secure packet capture, include the /junos/system/linecard/packet-capture resource path using a Junos remote procedure call (RPC).

    Licensing

    • You need a license to use the software features on the EX4100 multigigabit switches (EX4100-48MP and EX4100-24MP) and EX4100-F-12T and EX4100-F-12P switches. To know more about licenses and supported features, see Flex Software License for EX Series Switches.

      To add, delete, and manage licenses, see Managing Licenses.

    Security

    Software installation and upgrade

    • Secure boot support in U-boot phase to authenticate and verify the loaded software image while also preventing software-based attack.

      [See Software Installation and Upgrade Guide.]

    • Support for DHCP option 43 suboption 8 to provide proxy server information in phone-home client.

      The PHC automatically starts up on the Virtual Chassis and connects to the phone-home server (PHS). The PHS responds with bootstrapping information, including the Virtual Chassis topology, software image, and configuration. The PHC upgrades each Virtual Chassis member with the new image and applies the configuration, and the Virtual Chassis is ready to go.

      [See Obtaining Configurations and Software Image Without User Intervention Using Phone-Home Client.]

    • Support for ZTP with IPv6. You can use either the legacy DHCP-options-based zero-touch provisioning (ZTP) or the phone-home client (PHC) to provision software for the EX4100 and EX4100-F switches. If the switch boots up and receives DHCP options from the DHCP server for ZTP, ZTP resumes. If DHCP options are not present, the switch attempts the PHC method.

      The DHCP server uses DHCPv6 options 59 and 17 and applicable suboptions to exchange ZTP-related information between itself and the DHCP client.

      [See Zero Touch Provisioning Overview.]

    Timing

    Virtual Chassis

    • Support for Virtual Chassis configuration. You can interconnect EX4100-24MP, EX4100-48MP, EX4100-12T, and EX4100-12P models with other EX4100 or EX4100-F switches into a Virtual Chassis in non-mixed mode.

      [See Virtual Chassis Overview for Switches.]