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L2 & L3 Gigabit Ethernet Switch for VME systems

  • 6U VME
  • Managed Layer 2+/ 3
  • up to 24 ports
  • 10/100/1000 BaseT (front)
  • 1000BaseSX, 1000 BaseLX, WDM (front)
  • L3 IP V4 & V6 routing Engine

ComEth4000a - 6U VME Gigabit Ethernet Switch

This product is in End Of Life (EOL).
Please refer to the ComEth4000e product replacement.

ComEth4000a is built on the latest generation of Gigabit switch engine and PHY transceiver. It combines in a single equipment a layer 2+ switch and a full layer 3 router with an optimized power consumption.

ComEth4000a supports full-wire speed L2 bridging and L3 routing with L2-L4 advanced traffic classification, filtering and prioritization. The eight level of queue priority combined with QoS policy make easier to tune the delay-sensitive in critical applications.

ComEth4000a ports are compatible both with VME or cPCI system. It is designed to optimize the integration of Gigabit switched network. Twelve front Giga channels are implemented on the one slot version, twelve additional ports are available on the two slots configuration.

According to the configuration, ComEth4000a provides a combination of 10/100/1000BT or Fiber ports. Several types of optical interface are available 1000SX, 1000LX, WDM mode.

Auto-crossover, auto-polarity, auto-negotiation and automatic MAC address management make ComEth4000a a true Plug&Play switch.

The Marvell Virtual Cable tester allows a remote identification of potential cable malfunctions as excessive pair skew, cable opens, impedance mismatch...

This switch is fully compatible with ComEth40x0a range.

12 or 24 10/100/1000 Ethernet ports with a full-wire speed switching capacity of up to 37Mpps

Layer2 Switching capabilities :
16K entry forwarding database
Automatic or controlled learning and aging routing table
Full-line rate switching engine
Port and MAC access control
Flow control and backpressure
9 KB Jumbo Frame
IPV4 IGMP IPV6 MLD snooping
MAC address transplanting for Rapid Reconfiguration 802.1w
Link aggregation static or LACP

L3 IP V4 & V6 routing Engine:
1K UC ARP entries
RIPV2, OSPF V2 Routing
DHCP relay
IGMP server

Bandwidth management :
Flow rate limiting
Egress rate shaping
Minimal bandwidth guarantee per traffic Class

VLANs services :
4K VLANs (256 actif)
4K Bridge mulcticast groups
Flexible VLAN assignment 802.1Q port -based, protocol based 802.1v, service Vlans 802.1ad, Policy based Vlans

Quality of Service engine :
8 priority queues level per port
Traffic Class assignment according to 802-1p tag, MAC address, Port, DiffServ CP or Policy engine

Security features :
802.1X Port authentication (*)
Multicast/Broadcast limiting
STP/RSTP protocol
Virtual cable tester On-Line

Flexible management tools :
Web or CLI management
SNMP Standard & private MIBs
Enhanced Port mirroring
Easy software updating

 Physical layer

  • 10/100/1000BT ports:
    Auto-Negotiation with Downshift 
    Automatic MDI/MDIX crossover for all 3 speeds of operation
    Automatic polarity correction
    Online virtual cable tester
  • 1000SX transceivers with:
    LC-duplex connectors 850nm source
    maximum link lengths : 275m for 62.5/125µm MMfiber or 50m for 
    50/125µm fiber
  • 1000LX transceivers with:
    LC-duplex connectors 1300nm source
    maximum link lengths : 550m for 62.5/125µm MMfiber Automatic or 
    10 Km for 8/125µm SM fiber polarity correction

Consult us for other Fiber transceiver : 1500nm (20..40Km) or WDM

 Layer 2 switching
802.1D/Q Compliant with a full-line rate Ethernet switching engine.
16000 MAC address database.
automatic or controlled aging and learning mechanism, 
Tag extraction and insertion
(802.1p), Jumbo frames up to 9KBytes.
Back pressure for half-duplex, IEEE802.3x for full-duplex.
Discard broadcasts above critical threshold.
Link aggregation with static or dynamic LACP
IGMP & MLD snooping.

supports L2 partitioning of up to 4000 VLANs 802.1Q (256 active)
VLAN is flexibly programmed to any value from 1 to 4094 Protocol-based 
VLAN (802.1v) or Port-based VLAN (802.1v).

Port and MAC access control compliant with 802.1X authentication.

L3 Switching/routing
Non-blocking Router engine running at full wire-speed
Eight queues level per port
Minimal and maximal bandwidth affectation per traffic class using weighted round robin and strict priority scheduling
72 quality of services profiles for traffic class drop precedence

L3 services
IGMP server
UDP relay
STP/RSTP redundant link support

Front Panel LEDs
Power supply and Switch status
Switched ports : activity & link

3.3 VDC Power Supply only

5 VDC Power Supply only 
Power supply Pest = 30W (full configuration)

Switch Management
Onboard firmware are implemented with comprehensive Built-In Test (loop back mode used during the diagnostic), maintenance functions and network (BootP) updating functions.
Management software provides a wide range of configuration L2/3 functions on any port : transmission speed/mode, VLAN, STP parameters, mirroring, QoS, etc.

Supervision get lots of information in real time on the switch.
MIB and RMON counters and private information are reachable from SNMP agent, web-browser and CLI for L3 functions.
This Open Application, named SWITCHWARE, is carried out by a PowerPC processor.

ComEth4000a - L2 & L3 Gigabit Ethernet Switch for VME systems diagram
ComEth4000a - L2 & L3 Gigabit Ethernet Switch for VME systems diagram
Criterion Standard Extended Rugged Conduction-cooled 71°C Conduction-cooled 85°C
Coating Optional Yes Yes Yes Yes
Operat. Temp. 0 to 55°C -20 to 65°C -40°C to 71°C or 85°C (*) -40°C to 71°C
at the thermal interface (*)
-40°C to 85°C
at the thermal interface (*)
Rec. airflow 1 .. 2 m/s 2 .. 3 m/s 2 .. 5 m/s - -
Oper. HR% no cond. 5 to 90% 5 to 95% 5 to 95% 5 to 95% 5 to 95%
Storage Temp. -45°C to 85°C -45°C to 85°C -45°C to 100°C -45°C to 100°C -45°C to 100°C
Sinusoidal Vibr 2G [20..2000]Hz 2G [20..2000]Hz 5G [20..2000]Hz 5G [20..2000]Hz 5G [20..2000]Hz
Random Vibr 0.002g2 /Hz
0.002g2 /Hz
0.05g2 /Hz
0.1g2 /Hz
0.1g2 /Hz
Shock 1/2 Sin. 11ms 20G 20G 40G 40G 40G
(*) Temperature grades are subject to availability according to IC products. Please consult us.

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