Enterasys C2G124-48 Datasheet download pdf (Page 3)

Every SecureStack C2 switch supports four groups of RMON

(History, Statistics, Alarms, Events) and SNMP v1/2 and v3. Multiple

conﬁguration ﬁles are supported per switch and all conﬁguration ﬁles can

be edited with any ASCII editor and can be uploaded and downloaded

from a switch. A SecureStack C2 stack can be managed as a single

network entity and only a single IP address is required to manage

the complete stack. There is no need to download software images to

individual stack units, only one software upgrade needs to be performed

per stack. The image will be distributed to the individual stack members

automatically. Port-mirroring is supported on individual switches as

well as stack-wide, enabling network managers to easily monitor and

troubleshoot any port in the stack.

Reliability and Availability

The SecureStack C2 offers a variety of standards-based features to

ensure network availability. These features include 802.1d Spanning

Tree, 802.1w Rapid Spanning Tree, and 802.3ad Link Aggregation. All

of these standards allow for redundant network connections, automatic

failover and recovery capabilities. The SecureStack C2 switches support

additional reliability features such as Distributed Link Aggregation

Groups (six groups of eight ports)—a capability that supports link

aggregation across multiple stack units thereby ensuring that a failure

in a single unit does not disconnect the stack from the uplink to the

core switch.

Redundant stack management is supported where there is a primary

and a secondary manager for managing the stack entity. All SecureStack

C2 switches support Closed Loop Stacking, which enables the stack

to continue working even if an individual switch member or cable

connection fails. Power redundancy is available as an option for both the

Power-over-Ethernet and standard Ethernet SecureStack C2 switches.

The redundant power options allow a switch to operate from its own

internal AC power supply or, if there is a failure, seamlessly failover to the

external redundant power system.

Power-over-Ethernet (PoE IEEE 802.3af) Support

Two switch models in the SecureStack C2 family provide a centralized

IEEE 802.3afcompliant power source for VoIP phones, wireless access

points (e.g., RoamAbout AP4102), and remote security scanner and

cameras, eliminating the need for individual power sources for these

devices. Both switches provide 48 volts of power over the normally

used pairs of each Category 5 Ethernet cable with a total of 360 watts

of power per switch. If all ports require Power-over-Ethernet, then the

maximum amount of power required by a Class 2 device (7.5 watts)

can be delivered to all ports. Any individual port can provide up to the

maximum 15.4 watts speciﬁed in the IEEE standard.

The network manager has the ability to prioritize which ports receive

power if the power demand exceeds the switch total of 360 watts.

Special power-shedding support is included in both switches to enforce

the network manager-speciﬁed priorities if the power demand exceeds

the maximum wattage. Additionally, the SecureStack C2 PoE switches

support a device-detection feature that enables them to work with

powered as well as non-powered end devices. This feature prevents any

damage from occurring when a port on either SecureStack C2 PoE switch

is connected to any compliant RJ45 device that is already powered by

its own power source. This feature also allows any mixture of Power-over-

Ethernet devices and standard Ethernet devices to be connected to a

single switch. These SecureStack C2 PoE switches signiﬁcantly simplify

the installation and capital costs of APs, VoIP phones and security

devices by allowing them to be installed in out-of-the-way locations that

are without AC power thereby enabling maximum coverage.

10-Gigabit Ethernet Support

One SecureStack C2 switch supports up to two full-line-rate, IEEE

802.3ae-compliant, 10-Gigabit Ethernet uplinks for both switching

and routing. The 10-Gigabit Ethernet connectivity is accomplished via

10-Gigabit Small Form-factor Pluggable modules more commonly known

as XFPs. The XFP modules occupy one-ﬁfth the space and use one-half

the power of other 10-Gigabit Ethernet solutions. The XFPs are hot-

pluggable so that neither the switch nor the XFPs can be damaged by the

unexpected insertion or removal of the XFP. XFPs can support distances

up to 300 meters over multimode ﬁber and 10 KM and 40 KM over

single-mode ﬁber.

The modular ﬂexibility of the XFP interface will allow this SecureStack

C2 switch to support 10-Gigabit copper solutions as they become

standardized and commercially available. The line-rate speed of these

10-Gigabit uplinks gives a network manager the option to replace and

increase the performance of a Distributed 1 Gigabit Link Aggregation

Group, an especially important capability when additional ﬁber runs are

in short demand. The SecureStack C2 triple-speed 10-Gigabit switch

also supports Link Aggregation Groups, allowing a single switch to

support 20 gigabits of uplink bandwidth.

Outstanding Conﬁguration Flexibility

With the SecureStack C2 switch family, mixing and matching various

types of switches is a snap. A small stack can be started with dual

10/100 switches with redundant gigabit ethernet uplinks to the core.

If Power-over-Ethernet is needed for remote access points or a trial

test of VoIP phones, a 10/100 PoE switch can simply be added to the

stack. As higher desktop speeds are required, 10/100/1000 switches

can be added. As the stack grows, the demands on the uplinks to the

core will increase. Distributed Link Aggregation can be used to increase

bandwidth from a single gigabit up to eight gigabit. When more uplink

bandwidth is required, a dual 10 Gb 10/100/1000 switch can simply

be added to the stack. All of these various types of switches can be

managed as a single entity with a single IP address and all of the

switches in the stack run a common software image so there are no

incompatibility issues between the switches. The simple ﬂexibility of the

SecureStack C2 stacking makes it an elegant solution.

The SecureStack C2 Switch Family

C2G124-24

This SecureStack C2 switch features 24 ports of non-blocking

10/100/1000 connectivity, four uplink ports supporting SFP (Small

Form-factor Pluggable) Mini-GBICs and two integrated stacking ports.

1 2 3 4 5 6 7 8 9

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Enterasys C2G124-48 Datasheet Page 3

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