Smart Gigabit Switch Poe Cisco 26 Port Sg220-26p
Thông số kỹ thuật
- Thương hiệu: CISCO
- Bảo hành: 12 tháng
- Tình trạng: Mới 100%
- Model: SG220-26P-K9-EU
- Performance
- Switching capacity and forwarding rate Capacity in Millions of Packets per Second (mpps) (64-byte packets): 38.69
- Switching Capacity in Gigabits per Second (Gbps): 52
- Jumbo frames Frame sizes up to: 9216 supported
- MAC table Up to: 8192 MAC addresses
- Total system ports: 26 Gigabit Ethernet
- RJ-45 ports: 24 Gigabit Ethernet
- Uplink ports: 2 Gigabit Ethernet combo
- Layer 2 Switching
- Spanning Tree Protocol (STP):
Standard 802.1d STP support
Fast convergence using 802.1w (Rapid Spanning Tree [RSTP]), enabled by default - Port grouping: Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP): Up to 8 groups, Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation
- VLAN:
Support for up to 256 VLANs simultaneously
Port-based and 802.1Q tag-based VLANs
Management VLAN
Guest VLAN - Auto voice VLAN: Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS
- QinQ VLAN: VLANs transparently cross a service provider network while isolating traffic among customers
- Generic VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP): Protocols for automatically propagating and configuring VLANs in a bridged domain
Head-Of-Line (HOL) blocking HOL blocking prevention - Loopback detection: Loopback detection provides protection against loops by transmitting loop protocol packets out of ports on which loop protection has been enabled. It operates independently of STP.
- Automatic Media-Dependent Interface Crossover (MDIX): Automatically adjusts transmit and receive pairs if an incorrect cable type (crossover or straight-through) is installed.
- Security
- ACLs:
Drop or rate limit based on source and destination MAC, VLAN ID or IP address, protocol, port, Differentiated Services Code Point (DSCP)/IP precedence, TCP/UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag
Support up to 512 rules - Port security: Creates the ability to lock source MAC addresses to ports; limits the number of learned MAC addresses
- IEEE 802.1X (authenticator role) 802.1X: RADIUS authentication; guest VLAN;
- RADIUS, TACACS+: Supports RADIUS and TACACS authentication; switch functions as a client
- MAC address filtering: Supported
- Storm control: Broadcast, multicast, and unknown unicast
- DoS protection: DOS attack prevention
- STP Bridge Protocol Data Unit (BPDU) Guard: This security mechanism protects the network from invalid configurations. A port enabled for BPDU Guard is shut down if a BPDU message is received on that port
- Spanning Tree Loop Guard: This feature provides additional protection against Layer 2 forwarding loops (STP loops).
- Secure Shell (SSH): Protocol SSH is a secure replacement for Telnet traffic. SCP also uses SSH. SSH v1 and v2 are supported
- Secure Sockets Layer (SSL): SSL support: Encrypts all HTTPS traffic, allowing highly secure access to the browser-based management GUI in the switch
- Quality of Service
- Priority levels: 8 hardware queues
- Scheduling: Strict priority and weighted round-robin (WRR)
Queue assignment based on differentiated services code point (DSCP) and class of service (802.1p/CoS) - Class of service: Port based, 802.1p VLAN priority based, IPv4/v6 IP precedence/type of service (ToS)/DSCP based, Differentiated Services (DiffServ)
- Rate limiting: Ingress policer, per VLAN and per port
- Power over Ethernet
- 802.3af PoE or 802.3at PoE+ delivered over any of the RJ-45 network ports within the listed power budgets:
Switches support 802.3af, 802.3at, and Cisco pre-standard (legacy) PoE with maximum power of 30 W per port.
This applies to the following PoE-enabled models; the maximum number of ports providing PoE power simultaneously is determined by the total PoE budget for the switch listed as below:
PoE Power Budget: 180 W
Number of Ports That Support PoE: 24 - Pre-standard: PoE Support Cisco Pre-Standard PoE
- Intelligent PoE power management: Support the granular power negotiation with CDP/LLDP communication with PD devices after IEEE classification
- Environmental
- Dimensions (W x H x D): 440 x 44 x 250 mm
- Unit weight: 3.7 kg
- Power: 100 to 240V 50 to 60 Hz, internal
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