Cisco Business 250 | CBS250-16P-2G-EU CBS250 Smart 16-port GE, PoE 120W, 2x1G SFP

Performance

Switching capacity and forwarding rate

All switches are wire-speed and nonblocking

Model

Capacity in millions of packets per second (mpps) (64-byte packets)

Switching capacity in gigabits per second (Gbps)

CBS250-8T-D

11.90

16.0

CBS250-8PP-D

11.90

16.0

CBS250-8T-E-2G

14.88

20.0

CBS250-8PP-E-2G

14.88

20.0

CBS250-8P-E-2G

14.88

20.0

CBS250-8FP-E-2G

14.88

20.0

CBS250-16T-2G

26.78

36.0

CBS250-16P-2G

26.78

36.0

CBS250-24T-4G

41.66

56.0

CBS250-24PP-4G

41.66

56.0

CBS250-24P-4G

41.66

56.0

CBS250-24FP-4G

41.66

56.0

CBS250-48T-4G

77.38

104.0

CBS250-48PP-4G

77.38

104.0

CBS250-48P-4G

77.38

104.0

CBS250-24T-4X

95.23

128.0

CBS250-24P-4X

95.23

128.0

CBS250-24FP-4X

95.23

128.0

CBS250-48T-4X

130.94

176.0

CBS250-48P-4X

130.94

176.0

Layer 2 switching

Spanning Tree Protocol (STP)

Standard 802.1d spanning tree support

Fast convergence using 802.1w (Rapid Spanning Tree Protocol [RSTP]), enabled by default

Multiple spanning tree instances using 802.1s (MSTP); 8 instances are supported

Per-VLAN Spanning Tree Plus (PVST+); 126 instances are supported

Rapid PVST+ (RPVST+); 126 instances are supported

Port grouping/link aggregation

Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)

VLAN

Support for up to 255 active VLANs simultaneously

Port-based and 802.1Q tag-based VLANs

Management VLAN

Guest VLAN

Voice VLAN

Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Auto voice capabilities deliver networkwide zero-touch deployment of voice endpoints and call control devices

Generic VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP)

Protocols for automatically propagating and configuring VLANs in a bridged domain

IGMP (versions 1, 2, and 3) snooping

Internet Group Management Protocol (IGMP) limits bandwidth-intensive multicast traffic to only the requesters; supports 255 multicast groups (source-specific multicasting is also supported)

IGMP querier

Used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router

HOL blocking

Head-of-Line (HOL) blocking prevention

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.

Layer 3 routing

IPv4 routing

Wire-speed routing of IPv4 packets

Up to 32 static routes and up to 16 IP interfaces

IPv6 routing

Wire-speed routing of IPv6 packets

Layer 3 interface

Configuration of Layer 3 interface on physical port, LAG, VLAN interface, or loopback interface

Classless Interdomain Routing (CIDR)

Support for CIDR

Dynamic Host Configuration Protocol (DHCP) relay at Layer 3

Relay of DHCP traffic across IP domains

User Datagram Protocol (UDP) relay

Relay of broadcast information across Layer 3 domains for application discovery or relaying of Bootstrap Protocol (BootP)/DHCP packets

Security

Secure Sockets Layer (SSL)

SSL encrypts all HTTPS traffic, allowing secure access to the browser-based management GUI in the switch

Secure Shell (SSH) Protocol

SSH is a secure replacement for Telnet traffic. Secure Copy (SCP) also uses SSH. SSH v1 and v2 are supported.

IEEE 802.1X (authenticator role)

Remote Authentication Dial-In User Service (RADIUS) authentication, guest VLAN, single/multiple host mode, and single/multiple sessions

STP loopback guard

Provides additional protection against Layer 2 forwarding loops (STP loops)

Secure Core Technology (SCT)

Ensures that the switch will receive and process management and protocol traffic no matter how much traffic is received

Secure Sensitive Data (SSD)

A mechanism to manage sensitive data (such as passwords, keys, and so on) securely on the switch, populating this data to other devices, and secure autoconfig. Access to view the sensitive data as plain text or encrypted is provided according to the user-configured access level and the access method of the user

Trustworthy systems

Trustworthy systems provide a highly secure foundation for Cisco products

Run-time defenses (Executable Space Protection [X-Space], Address Space Layout Randomization [ASLR], Built-In Object Size Checking [BOSC])

Port security

Ability to lock source MAC addresses to ports and limit the number of learned MAC addresses

RADIUS

Supports RADIUS authentication for management access. Switch functions as a client.

Storm control

Broadcast, multicast, and unknown unicast

DoS prevention

Denial-of-Service (DoS) attack prevention

Multiple user privilege levels in CLI

Level 1, 7, and 15 privilege levels

Access Control Lists (ACLs)

Support for up to 512 rules

Drop or rate limit based on source and destination MAC, VLAN ID or IPv4 or IPv6 address, IPv6 flow label, 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; ACL can be applied on both ingress and egress sides

Time-based ACLs supported

Quality of service

Priority levels

8 hardware queues

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)/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

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 Link Aggregation Control Protocol, IEEE 802.3z Gigabit Ethernet, IEEE 802.3x Flow Control, IEEE 802.3 ad LACP, IEEE 802.1D (STP), 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 920, RFC 922, RFC 950, RFC 951, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC 1213, RFC 1215, RFC 1286, RFC 1350, RFC 1442, RFC 1451, RFC 1493, RFC 1533, RFC 1541, RFC 1542, RFC 1573, RFC 1624, RFC 1643, RFC 1700, RFC 1757, RFC 1867, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2030, RFC 2131, RFC 2132, RFC 2233, RFC 2576, RFC 2616, RFC 2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 3416, RFC 4330

IPv6

IPv6

IPv6 host mode

IPv6 over Ethernet

Dual IPv6/IPv4 stack

IPv6 Neighbor Discovery (ND)

IPv6 stateless address auto configuration

Path Maximum Transmission Unit (MTU) discovery

Duplicate Address Detection (DAD)

Internet Control Message Protocol (ICMP) version 6

IPv6 over IPv4 network with Intrasite Automatic Tunnel Addressing Protocol (ISATAP) support

USGv6 and IPv6 Gold Logo certified

IPv6 QoS

Prioritize IPv6 packets in hardware

IPv6 ACL

Drop or rate limit 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, Ping, Traceroute, Simple Network Time Protocol (SNTP), Trivial File Transfer Protocol (TFTP), Simple Network Management Protocol (SNMP), Remote Authentication Dial-In User Service (RADIUS), Syslog, DNS client, DHCP client, DHCP autoconfig

Management

Cisco Business Dashboard

Support for embedded probe for Cisco Business Dashboard running on the switch. Eliminates the need to set up a separate hardware or virtual machine for the Cisco Business Dashboard Probe on site.

Cisco Business mobile app

Mobile app for Cisco Business Switch and Wireless products. Helps to set up a local network in minutes and provide easy management at your fingertips.

Cisco Network Plug and Play (PnP) agent

The Cisco Network Plug and Play solution provides a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts or for provisioning updates to an existing network. The solution provides a unified approach to provision Cisco routers, switches, and wireless devices with a near-zero-touch deployment experience.

Supports Cisco PnP Connect

Web user interface

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

Basic and advanced mode for maximum operational efficiency

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

Firmware upgrade

Web browser upgrade (HTTP/HTTPS) and TFTP and upgrade over SCP running over SSH

Dual images for resilient firmware upgrades

Port mirroring

Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe. Up to 4 source ports can be mirrored to one destination port

VLAN mirroring

Traffic from a VLAN can be mirrored to a port for analysis with a network analyzer or RMON probe. Up to 4 source VLANs can be mirrored to one destination port

Dynamic Host Configuration Protocol (DHCP) (options 12, 66, 67, 129, and 150)

DHCP options facilitate tighter control from a central point (DHCP server), to obtain IP address, autoconfiguration (with configuration file download), DHCP Relay, and host name

Secure Copy (SCP)

Securely transfers files to and from the switch

Autoconfiguration with SCP file download

Enables mass deployment with protection of sensitive data

Text-editable configs

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

Smartports

Simplified configuration of QoS and security capabilities

Auto Smartports

Automatically applies the intelligence delivered through the Smartports roles to the port based on the devices discovered over Cisco Discovery Protocol or LLDP-MED. This facilitates zero-touch deployments.

Text view Command-Line Interface (CLI)

Scriptable CLI. A full CLI as well as a menu-based CLI is supported. User privilege levels 1, 7, and 15 are supported for the CLI.

Localization

Localization of GUI and documentation into multiple languages

Login banner

Configurable multiple banners for web as well as CLI

Other management

Traceroute; single IP management; HTTP/HTTPS; RADIUS; port mirroring; TFTP upgrade; DHCP client; Simple Network Time Protocol (SNTP); cable diagnostics; Ping; syslog; Telnet client (SSH secure support); automatic time settings from Management Station

Green (power efficiency)

Energy detect

Automatically turns power off on RJ-45 port when detecting link down. Active mode is resumed without loss of any packets when the switch detects the link is up

Cable length detection

Adjusts the signal strength based on the cable length. Reduces the power consumption for shorter cables

EEE compliant (802.3az)

Supports IEEE 802.3az on all copper Gigabit Ethernet ports

Disable port LEDs

LEDs can be manually turned off to save on energy

Time-based port operation

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

Time-based PoE

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

General

Jumbo frames

Frame sizes up to 9K bytes. The default MTU is 2K bytes

MAC table

8K addresses

Discovery

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

Link Layer Discovery Protocol (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. It also learns the connected device and its characteristics using Cisco Discovery Protocol

Power over Ethernet (PoE)

802.3at PoE+ and 802.3af PoE delivered over any of the RJ-45 ports within the listed power budgets

The following switches support 802.3at PoE+, 802.3af, and Cisco prestandard (legacy) PoE. Maximum power of 30.0W to any 10/100 or Gigabit Ethernet port, until the PoE budget for the switch is reached. The total power available for PoE per switch is as follows:

Model

Power dedicated to PoE

Number of ports that support PoE

CBS250-8PP-D

45W

8

CBS250-8PP-E-2G

45W

8

CBS250-8P-E-2G

60W

8

CBS250-8FP-E-2G

120W

8

CBS250-16P-2G

120W

16

CBS250-24PP-4G

100W

24

CBS250-24P-4G

195W

24

CBS250-24FP-4G

370W

24

CBS250-48PP-4G

195W

48

CBS250-48P-4G

370W

48

CBS250-24P-4X

195W

24

CBS250-24FP-4X

370W

24

CBS250-48P-4X

370W

48

Ports

Model name

Total system ports

RJ-45 ports

Combo ports (RJ-45 + SFP)

CBS250-8T-D

8 Gigabit Ethernet

8 Gigabit Ethernet

–

CBS250-8PP-D

8 Gigabit Ethernet

8 Gigabit Ethernet

–

CBS250-8T-E-2G

10 Gigabit Ethernet

8 Gigabit Ethernet

2 Gigabit Ethernet combo

CBS250-8PP-E-2G

10 Gigabit Ethernet

8 Gigabit Ethernet

2 Gigabit Ethernet combo

CBS250-8P-E-2G

10 Gigabit Ethernet

8 Gigabit Ethernet

2 Gigabit Ethernet combo

CBS250-8FP-E-2G

10 Gigabit Ethernet

8 Gigabit Ethernet

2 Gigabit Ethernet combo

CBS250-16T-2G

18 Gigabit Ethernet

16 Gigabit Ethernet

2 Small Form-Factor Pluggable (SFP)

CBS250-16P-2G

18 Gigabit Ethernet

16 Gigabit Ethernet

2 SFP

CBS250-24T-4G

28 Gigabit Ethernet

24 Gigabit Ethernet

4 SFP

CBS250-24PP-4G

28 Gigabit Ethernet

24 Gigabit Ethernet

4 SFP

CBS250-24P-4G

28 Gigabit Ethernet

24 Gigabit Ethernet

4 SFP

CBS250-24FP-4G

28 Gigabit Ethernet

24 Gigabit Ethernet

4 SFP

CBS250-48T-4G

52 Gigabit Ethernet

48 Gigabit Ethernet

4 SFP

CBS250-48PP-4G

52 Gigabit Ethernet

48 Gigabit Ethernet

4 SFP

CBS250-48P-4G

52 Gigabit Ethernet

48 Gigabit Ethernet

4 SFP

CBS250-24T-4X

24 Gigabit Ethernet +
4 10 Gigabit Ethernet

24 Gigabit Ethernet

4 SFP+

CBS250-24P-4X

24 Gigabit Ethernet +
4 10 Gigabit Ethernet

24 Gigabit Ethernet

4 SFP+

CBS250-24FP-4X

24 Gigabit Ethernet +
4 10 Gigabit Ethernet

24 Gigabit Ethernet

4 SFP+

CBS250-48T-4X

48 Gigabit Ethernet +
4 10 Gigabit Ethernet

48 Gigabit Ethernet

4 SFP+

CBS250-48P-4X

48 Gigabit Ethernet +
4 10 Gigabit Ethernet

48 Gigabit Ethernet

4 SFP+

Console port

Cisco Standard mini USB Type-B/RJ45 console port^*

^*Not available on CBS250-8T-D and CBS250-8PP-D

USB slot

USB Type-A slot on the front panel of the switch for easy file and image management

Buttons

Reset button

Cabling type

Unshielded Twisted Pair (UTP) Category 5e or better for 1000BASE-T

LEDs

System, Link/Act, PoE, Speed

Flash

256 MB

CPU

800 MHz ARM

DRAM

512 MB

Packet buffer

All numbers are aggregate across all ports because the buffers are dynamically shared:

Model name

Packet buffer

CBS250-8T-D

1.5 MB

CBS250-8PP-D

1.5 MB

CBS250-8T-E-2G

1.5 MB

CBS250-8PP-E-2G

1.5 MB

CBS250-8P-E-2G

1.5 MB

CBS250-8FP-E-2G

1.5 MB

CBS250-16T-2G

1.5 MB

CBS250-16P-2G

1.5 MB

CBS250-24T-4G

1.5 MB

CBS250-24PP-4G

1.5 MB

CBS250-24P-4G

1.5 MB

CBS250-24FP-4G

1.5 MB

CBS250-48T-4G

3 MB

CBS250-48PP-4G

3 MB

CBS250-48P-4G

3 MB

CBS250-24T-4X

1.5 MB

CBS250-24P-4X

1.5 MB

CBS250-24FP-4X

1.5 MB

CBS250-48T-4X

3 MB

CBS250-48P-4X

3 MB

Environmental

Power

100 to 240V 50 to 60 Hz, internal, universal: CBS250-16T-2G, CBS250-16P-2G, CBS250-24T-4G, CBS250-24PP-4G, CBS250-24P-4G, CBS250-24FP-4G, CBS250-48T-4G, CBS250-48PP-4G, CBS250-48P-4G, CBS250-24T-4X, CBS250-24P-4X, CBS250-24FP-4X, CBS250-48T-4X, CBS250-48P-4X

100 to 240V 50 to 60 Hz, external: CBS250-8T-D, CBS250-8PP-D, CBS250-8T-E-2G, CBS250-8PP-E-2G, CBS250-8P-E-2G, CBS250-8FP-E-2G

Certification

UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A

Operating temperature

32° to 122°F (0° to 50°C) for CBS250-8T-D and CBS250-8PP-D

23° to 122°F (-5° to 50°C) for other models

Storage temperature

-13° to 158°F (-25° to 70°C)

Operating humidity

10% to 90%, relative, noncondensing

Storage humidity

10% to 90%, relative, noncondensing

Warranty

Limited lifetime

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