Коммутатор Cisco SB SG220-28MP (SG220-28MP-K9-EU)

Model name

Order product ID

Description

Fast Ethernet

SF220-24

SF220-24-K9-xx

24 10/100 ports

2 Gigabit RJ45/SFP combo port

SF220-24P

SF220-24P-K9-xx

24 10/100 PoE+ ports with 180 W power budget

2 Gigabit RJ45/SFP combo port

SF220-48

SF220-48-K9-xx

48 10/100 ports

2 Gigabit RJ45/SFP combo port

SF220-48P

SF220-48P-K9-xx

48 10/100 PoE+ ports with 375 W power budget

2 Gigabit RJ45/SFP combo port

Gigabit Ethernet

SG220-26

SG220-26-K9-xx

24 10/100/1000 ports

2 Gigabit RJ45/SFP combo port

SG220-26P

SG220-26P-K9-xx

24 10/100/1000 PoE+ ports with 180 W power budget

2 Gigabit RJ45/SFP combo port

SG220-28MP

SG220-28MP-K9-xx

24 10/100/1000 PoE+ ports with 375 W power budget

4 Gigabit SFP port

SG220-50

SG220-50-K9-xx

48 10/100/1000 ports

2 Gigabit RJ45/SFP combo port

SG220-50P

SG220-50P-K9-xx

48 10/100/1000 PoE+ ports with 375 W power budget

2 Gigabit RJ45/SFP combo port

Performance

Switching Capacity

Model name

Forwarding rate in millions of packets per second (mpps; 64-byte packets)

Switching capacity in Gigabits per second

SF220-24

6.55

8.8

SF220-24P

6.55

8.8

SF220-48

10.12

13.6

SF220-48P

10.12

13.6

SG220-26

38.69

52

SG220-26P

38.69

52

SG220-28MP

41.67

56

SG220-50

74.40

100

SG220-50P

74.40

100

Layer 2 switching

MAC table

Up to 8,192 MAC addresses

Spanning Tree Protocol (STP)

Standard 802.1d Spanning Tree support, enabled by default

Fast convergence using 802.1w (Rapid Spanning Tree [RSTP])

Multiple Spanning Tree instances using 802.1s (MSTP)

16 instances are supported

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

Load balance based on source and destination MAC address, or source and destination MAC/IP

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

Jumbo frame

Frame sizes up to 9,216 supported

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;

Single-host, multiple-host, and multisession mode

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

QoS

Priority levels

8 hardware queues per port

Scheduling

Strict priority and Weighted Round-Robin (WRR) queue assignment based on 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), and DSCP-based; Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoS

Rate limiting

Ingress policer; egress shaping and rate control; per VLAN, per port, and flow-based

Congestion avoidance

A TCP congestion avoidance algorithm is required to reduce and prevent global TCP loss synchronization

Multicast

Internet Group Management Protocol (IGMP) Versions 1, 2, and 3 Snooping

IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 256 multicast groups

IGMP querier

IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router

Standards

Standards

IEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet, IEEE 802.3ab

1000BASE-T Gigabit Ethernet, IEEE 802.3ad LACP, IEEE 802.3z Gigabit Ethernet, IEEE

802.3x Flow Control, IEEE 802.1D (STP, GARP, and GVRP), IEEE 802.1Q/p VLAN, IEEE

802.1w RSTP, IEEE 802.1s Multiple STP, IEEE 802.1X Port Access Authentication, IEEE

802.3af, IEEE 802.3at, RFC 768, RFC 783, RFC 791, RFC 792, RFC 793, RFC 813, RFC 879, RFC 896, RFC 826, RFC 854, RFC 855, RFC 856, RFC 858, RFC 894, RFC 919, RFC 922, RFC 920, RFC 950, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC

1350, RFC 1533, RFC 1541, RFC 1624, RFC 1700, RFC 1867, RFC 2030, RFC 2616, RFC

2131, RFC 2132, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC

2576, RFC 4330, RFC 1213, RFC 1215, RFC 1286, RFC 1442, RFC 1451, RFC 1493, RFC

1573, RFC 1643, RFC 1757, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2233, RFC

2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 1157, RFC

1493, RFC 1215, RFC 3416

IPv6

IPv6

IPv6 host mode

IPv6 over Ethernet

IPv6/IPv4 Dual Stack

IPv6 neighbor and router discovery (ND)

IPv6 stateless address auto-configuration

Path Maximum Transmission Unit (MTU) discovery

Duplicate Address Detection (DAD)

ICMP version 6

IPv6 ACL

Drop or rate limit IPv6 packets in hardware

IPv6 QoS

Prioritize IPv6 packets in hardware

Multicast Listener Discovery (MLD v1/2) Snooping

Deliver IPv6 multicast packets only to the required receivers

IPv6 applications

Web/SSL, Telnet server/SSH, DHCP Client, DHCP Autoconfig, CDP, LLDP

IPv6 RFCs supported

RFC 4443 (which obsoletes RFC2463) - ICMP version 6

RFC 4291 (which obsoletes RFC 3513) - IPv6 address architecture

RFC 4291 - IPv6 addressing architecture

RFC 2460 - IPv6 specification

RFC 4861 (which obsoletes RFC 2461) - Neighbor discovery for IPv6

RFC 4862 (which obsoletes RFC 2462) - IPv6 stateless address auto-configuration

RFC 1981 - Path MTU discovery

RFC 4007 - IPv6 scoped address architecture

RFC 3484 - Default address selection mechanism

Management

Web user interface

Built-in switch configuration utility for easy browser-based device configuration (HTTP/HTTPS). Supports configuration, system dashboard, system maintenance, and monitoring

Text-editable config files

Config files can be edited with a text editor and downloaded to another switch, facilitating easier mass deployment

Command-line interface

Scriptable CLI; a full CLI is supported. User privilege levels 1 and 15 are supported for the CLI

Cloud services

Support for Cisco FindIT Network Manager

SNMP

SNMP versions 1, 2c, and 3 with support for traps, and SNMP version 3 User-based Security Model (USM)

Standard MIBs

MIB-II (RFC1213)

IF-MIB (RFC2863)

Bridge-MIB (RFC4188)

Bridge-MIB-Extension (RFC2674)

RMON (RFC2819)

Etherlike MIB (RFC3635)

Radius Client MIB (RFC2618)

Entity MIB (RFC2737)

POWER-ETHERNET-MIB (RFC3621)

Syslog MIB (RFC3164)

Generic Traps MIB (RFC1215)

SNMP-COMMUNITY-MIB

SNMP-MIB

LLDP-MIB

LLDP-EXT-MED-MIB

IEEE8023-LAG-MIB

CISCO-PORT-SECURITY-MIB

CISCO-ENVMON-MIB

CISCO-CDP-MIB

CISCO-CONFIG-COPY-MIB

Remote Monitoring (RMON)

Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis

IPv4 and IPv6 dual stack

Coexistence of both protocol stacks to ease migration

Port mirroring

Traffic on a port or VLAN can be mirrored to another port for analysis with a network analyzer or RMON probe. Up to 8 source ports can be mirrored to one destination port. Four sessions are supported.

Firmware upgrade

●  Web browser upgrade (HTTP/HTTPS) and Trivial File Transfer Protocol (TFTP)

●  Dual images for resilient firmware upgrades

DHCP (Option 12, 66, 67, 82, 129, and 150)

DHCP options facilitate tighter control from a central point (DHCP server) to obtain IP address, auto-configuration (with configuration file download), DHCP relay, and hostname

Time synchronization

Simple Network Time Protocol (SNTP)

Login banner

Configurable multiple banners for web as well as CLI

Other management

HTTP/HTTPS; TFTP upgrade; DHCP client; BOOTP; cable diagnostics; ping; traceroute; syslog

Discovery

Bonjour

The switch advertises itself using the Bonjour protocol

Link Layer Discovery Protocol (LLDP) (802.1ab) with LLDP-MED Extensions

LLDP allows the switch to advertise its identification, configuration, and capabilities to neighboring devices that store the data in a MIB. LLDP-MED is an enhancement to LLDP that adds the extensions needed for IP phones.

Cisco Discovery Protocol

The switch advertises itself using the Cisco Discovery Protocol. Display brief information for connected Cisco network devices, IP phones, and wireless access points

Minimum requirements

Web configuration

Browser: Internet Explorer 8 or later; Mozilla Firefox 20 or later; Google Chrome 23 or later; Safari 5.1 or later

Power efficiency

EEE compliance (802.3az)

Support 802.3az Energy Efficient Ethernet on all ports; substantially reduce the power consumption when link bandwidth is not at full utilization

Energy Detect

Automatically turns power off on Gigabit Ethernet and 10/100 RJ-45 ports when detecting a link down

Active mode is resumed without loss of any packets when the switch detects the link up

Disable port LEDs

LEDs can be manually turned off to save on energy

Time-based PoE

PoE power can be on or off based on user-defined schedule to save energy

Time-based port operation

Link up or down based on user-defined schedule (when the port is administratively up)

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:

Model Name

PoE Power Budget

Number of Ports That Support PoE

SF220-24P

180 W

24

SF220-48P

375 W

48

SG220-26P

180 W

24

SG220-28MP

375 W

24

SG220-50P

375 W

48

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