아이피드림에 오신 것을 환영합니다.. - 유용한 정보 [3COM 기가비트스위치 패밀리 가이드]

Whatever your Gigabit switch requirements 3Com has a solution and with our current promotional pricing of up to 22% extra discount* available until 28th May 2010 from 3Com resellers there’s never been a better time to Go Gigabit with 3Com.

Baseline Plus Switch 2900 - Now with up to 15% extra discount.
Price leading entry level Managed 10/100/1000 Switching with PoE+ variants.

Switch 4200G - Now with up to 22% extra discount.
Stackable Managed 10/100/1000 switch with optional 10G uplinks.

Switch 4800G - Now with up to 15% extra discount.
Advanced Stackable 10/100/1000 with 10G uplinks, XRN resilient stacking, Dynamic L3 Routing and Rich L4 QoS controls.

To find out more use our simple selector flowchart and product
comparison below.

Family Baseline Plus
Switch 2900 Switch 4200G Switch 4800G

Extra Promotional Discount* Up to 15% Up to 22% Up to 15%

USD List Price Per Port From* $18 (non—PoE)
$43 (PoE) $70 (non-PoE)
$125 (PoE) $146 (non-PoE)
$177 (PoE)

Speeds 10/100/1000 Copper Gigabit SFP (dedicated) 10/100/1000 Copper Gigabit SFP (combo)
10G 10/100/1000 Copper Gigabit SFP (combo) 10G

Power over Ethernet IEEE 802.3at PoE+ ** IEEE 802.3af PoE IEEE 802.3af PoE

Expandability Single Management IP address of up to 32 units Clustering XRN Resilient Stacking up to 9 units

Management Basic CLI / Web / SNMP CLI / Web / SNMP CLI / Web / SNMP

Switching L2 + static routes L2 + static routes L2/3/4

Routing 32 Static Routes 32 Static Routes 1024 Static Routes RIP / OSPF / BGP/ IS-IS / PIM

IPv6 No Management Routing, Management, VLANs

Resiliency Rapid Spanning Tree / MSTP Rapid Spanning Tree / MSTP Rapid Spanning Tree / MSTP Resilient Ring Protection Protocol XRN

Convergence 4QoS Queues per port Auto-Voice VLAN IGMPv3 8 QoS Queues per port Auto-Voice VLAN IGMPv2 8 QoS Queues per port Auto-Voice VLAN IGMPv3

Security IEEE 802.1x Network Access Control Access Control Lists (L2/L3) IEEE 802.1x Network Access Control TACAS+ Access Control Lists (L2/L3) IEEE 802.1x Network Access Control TACAS+ Access Control Lists(L2/L3/L4)

Warranty 3 Years, NBD Advanced Hardware Replacement Limited Lifetime NBD Advanced Hardware Replacement Limited Lifetime NBD Advanced Hardware Replacement

* From 3Com $ List pricing.

** Pre-Standard 802.3at

Actual product discounts available should be checked and confirmed with your 3Com authorised reseller which determines the final discount percentage and which may be influenced by local pricing policy differences

Power over Ethernet (PoE)

IEEE 802.3af - the original PoE standard delivers a maximum of 15.4 9W of energy to end points such as IP phones, and 802.11 a/b/g Wi-Fi Access Points.

IEEE 802.3at – the latest PoE standard provides up to 25.5W of power for high demand end points such as PTZ IP Cameras and IEEE 802.11n high speed Wi-Fi Access Points. Backwards compatible with IEEE 802.3af

Layer 4 / Advanced QoS

Inspect and remark traffic priority based upon applications and policies. Ensures performance of mission-critical and delay-sensitive applications across the network

XRN Advanced Stacking

Up to 96 Gbps of high-performance distributed eXpandable Resilient Networking switch fabric links between stacked units. Enables a "Pay as you grow" grow architecture maximizes return on investment

Distributed Device Management
Manage up to a stack of 9 4800G devices as a single logical switch to reduce management tasks

Distributed Device Routing
Processing of Layer 3 routing is distributed throughout the stack members for improved Layer 3 routing performance and resiliency

Distributed Link Aggregation
trunks ports across the whole stack for scalable performance and link resiliency back to server farms and network core switches

10G Uplinks

Flexible 10Gbps uplinks to network core or server using XFP or XENPAK transceivers. Select the appropriate 10G transceiver based upon the cable type and link distance.

L2 switching / L3 routing

L2 switching
switching Ethernet frames based upon their Layer 2 MAC address within broadcast domains.

L3 Static Routes
routing of IP packets based upon manually defined static routes (32 max). Can be used for simple routing between VLANs on smaller networks. Does not scale to larger networks.

L3 Dynamic Routing
routing of IP packets based upon dynamically shared routing protocol information (e.g. RIP, OSPF) . Scales for use in larger / more complex network designs