Technical Description and Installation Manual
GigaFlex
14
Figure 3-7. Ring structure connection
3.3.1.5.5 Interface Conversion and Redundancy
The GigaFlex models support redundant data connections. Redundancy can be achieved by
following ways:
•
Data connection by multiple copper pairs
•
Data connection by multiple fiber cables
•
Data connection by copper and fiber
•
Ring structures
Figure 3-8. Redundant connection with copper and fiber
3.3.2 Ethernet Interfaces
The GigaFlex models have ten Gigabit Ethernet interfaces. Six of them are located on the front
panel (2x SFP, 4x 10/100/1000Base-TX) and four are connected to the SHDSL ports because
the EFM chip operates as PHY. These ports are not visible but must be configured according to
desired application.
The Ethernet subsystem of the GigaFlex models is based on a high-performance SoC (System
on Chip) with 48 Gbps nonblocking switching capability. The SoC with its operation system
support various Layer 2 and Layer 3 protocols including:
•
IEEE 802.1D:2004 MAC Bridges and Spanning Tree
•
IEEE 802.1Q:2005 VLAN, MSTP, Multiple VLAN Registration (GVRP/MVRP)
•
RFC 4330 SNTP
•
RFC 3339 Date and Time on the Internet
•
RFC 2865 RADIUS
•
IEEE 802.1X:2004 Port-based Access Control
•
IEEE 802.1AB Link Layer Discovery Protocol (LLDP)
•
RFC 4303 IPsec
•
RFC 4787 NAT
•
RFC 2131 DHCP
•
RFC 3046 DHCP Relay Agent
ETH
ETH
ETH
ETH
