Thông số kỹ thuật Switch Juniper EX3300-24T-DC
| Physical Specifications | |
| Uplink | Fixed 4-port uplinks which can be individually configured as GbE (SFP) or 10GbE (SFP+) ports |
| Dimensions (W x H x D) | 17.4 x 1.7 x 12 in (43.7 x 4.4 x 31 cm) |
| Weight | 10.0 lb (4.6 kg) |
| Environmental Ranges | + Operating temperature: 32° to 113° F (0° to 45° C) + Storage temperature: -40° to 158° F (-40° to 70° C) + Operating altitude: Up to 10,000 ft (3,049 m) + Non-operating altitude: Up to 16,000 ft (4,877 m) + Relative humidity operating: 10% to 85% (noncondensing) + Relative humidity non-operating: 0% to 95% (noncondensing) |
| Hardware Specifications | |
| Switching Engine Model | Store and forward |
| DRAM | 1 GB with ECC |
| Flash | 1 GB |
| CPU | 1 GHz |
| GbE port density per system | 28 (24 host ports + four 10 GbE/GbE uplink ports) |
| Virtual Chassis Capabilities | + Maximum number of members: 10 + Number of Virtual Chassis ports: 4 + Maximum Virtual Chassis interconnect capacity: 80 Gbps |
| Physical Layer | + Time Domain Reflectometry (TDR) for detecting cable breaks and shorts + Auto medium-dependent interface/medium dependent interface crossover (MDI/MDIX) support + Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports + Digital optical monitoring for optical ports |
| Packet Switching Capacities | 128 Gbps |
| Layer 2 Throughput (Mpps) | 95 Mpps |
| Layer 2 Switching | + Maximum MAC addresses per system: 16,000 + Jumbo frames: 9,216 Bytes + Number of VLANs: 4,096 + Range of possible VLAN IDs: 1-4,095 + Port-based VLAN + MAC-based VLAN + Voice VLAN + Compatible with Per-VLAN Spanning Tree Plus (PVST+) + RVI (Routed VLAN Interface) + IEEE 802.1AB: Link Layer Discovery Protocol (LLDP) + LLDP-MED with VoIP integration + IEEE 802.1D: Spanning Tree Protocol + IEEE 802.1p: CoS prioritization + IEEE 802.1Q: VLAN tagging + IEEE 802.1Q-in-Q: VLAN stacking + IEEE 802.1s: Multiple Spanning Tree Protocol (MSTP) + IEEE 802.1ak Multiple VLAN Registration Protocol (MVRP) + Persistent MAC (sticky MAC) + Number of MST instances supported: 64 + Number of VSTP instances supported: 253 + IEEE 802.1w: Rapid Spanning Tree Protocol (RSTP) + RSTP and VSTP running concurrently + IEEE 802.1X: Port access control + IEEE 802.3: 10BASE-T + IEEE 802.3u: 100BASE-T + IEEE 802.3ab: 1000BASE-T + IEEE 802.3z: 1000BASE-X + IEEE 802.3x: Pause frames/flow control + IEEE 802.3ad: Link Aggregation Control Protocol (LACP) + Layer 3 VLAN-tagged sub-interface + NetBios snooping + Multicast VLAN Registration (MVR) + Metro – PVLAN support – IEEE 802.1ag connectivity fault management – ITU-T G.8032 Ethernet Ring Protection Switching – IEEE 802.1ad Q-in-Q tunneling – Multicast VLAN routing – Layer 2 Tunneling Protocol (L2TP) – Adding/removing single tag + Filter-based SVLAN tagging + Flexible CoS (outer .1P marking) |
| Layer 3 Features: IPv4 | + Maximum number of Address Resolution Protocol (ARP) entries: 4,000 + Maximum number of IPv4 unicast routes in hardware: 8,000 + Layer 3 redundancy: VRRP + Routing protocols: – RIP v1/v2 – Static routing – OSPF v2 – BGP v4 + IP directed broadcast – traffic forwarding + Virtual router (VRF-Lite) supporting RIP, OSPF, BGP + Routing policy + Filter-based Forwarding (FBF) + Unicast Reverse Path Forwarding (uRPF) + Multiprotocol BGP (MBGP) |
| Layer 3 Features: IPv6 Management Functionality | + Neighbor discovery, system logging, Telnet, SSH, Junos Web, SNMP, Network Time Protocol (NTP), Domain Name System (DNS) + Static routing + IPv6 ACL (PACL, VACL, RACL) + IPv6 CoS (BA, MF classification and rewrite, scheduling based on TC) + MLDv1/v2 snooping + IPv6 ping, traceroute + IPv6 stateless auto-configuration + IPv6 Layer 3 forwarding in hardware |
| Layer 3 Features: IPv6 Routing | + RIPng + OSPF v3 + BGP v6 + IPv6 Layer 3 redundancy: VRRP v6 + Virtual Router support for IPv6 unicast + PIM for IPv6 multicast + MBGP |
| Security | + MAC limiting + Allowed MAC addresses, configurable per port + Dynamic ARP inspection (DAI) + Proxy ARP + Static ARP support + DHCP snooping + IP source guard + 802.1X port-based + 802.1X multiple supplicants + 802.1X with VLAN assignment + 802.1X with authentication bypass access (based on host MAC address) + 802.1X with VoIP VLAN support + 802.1X dynamic access control list (ACL) based on RADIUS attributes + 802.1X supported EAP types: Message Digest 5 (MD5), Transport Layer Security (TLS), Tunneled Transport Layer Security (TTLS), Protected Extensible Authentication Protocol (PEAP) + Access control lists, (Junos OS firewall filters) + Port-based ACL (PACL)—ingress and egress + VLAN-based ACL (VACL)—ingress and egress + Router-based ACL (RACL)—ingress and egress + ACL entries (ACE) in hardware per system: 1,500 + ACL counter for denied packets + ACL counter for permitted packets + Ability to add/remove/change ACL entries in middle of list (ACL editing) + L2-L4 ACL + Trusted Network Connect (TNC) certified + Static MAC authentication + MAC-RADIUS + Control plane denial-of-service (DoS) protection + Firewall filter on me0 interface (control plane protection) + Captive Portal – Layer 2 interfaces + Fallback authentication |
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