User’s Guide FUJITSU PSWITCH
December/2018 117
Perimeter or Edge port (connected directly to a Fibre Channel end node or -
ENode).
Fibre Channel forwarder (FCF) facing port (that receives traffic from FCFs -
targeted to the ENodes).
The default port role in an FCoE-enabled VLAN is as a perimeter port. FCF-facing
ports are configured by the user.
The FIP Snooping Bridge feature supports the configuration of the
perimeter port role and FCFfacing port roles and is intended for use only at
the edge of the switched network.
3.1.8.3. EVB (Edge Virtual Bridging)
IEEE 802.1Q-2014 standardizes Edge Virtual Bridging (EVB) functions. The EVB
Bridge can be the edge switch of data center network virtualization. The Virtual
Station Interface is the virtual network interface assigned to VM, and used to
identify VM traffic in EVB Bridge.
The ER in station supports to operate in Virtual Ethernet bridging (VEB), or Edge
Virtual Bridging (EVB) mode. The EVB Bridge can operate with either mode of the
ER of connected virtualized server. In EVB mode, the bridge do reflect relay service
to forward received frames on a same port. EVB station use VDP protocol to
associate VSI and apply VSI filter configuration on station facing bridge port (SBP)
of EVB Bridge.
If both EVB station and bridge supports S-channel, the EVB station can support
multiple ERs.
3.1.8.4. DCVPN Gateway/Layer2 Overlay
The Data Center Virtual Private Network (DCVPN) gateway feature enables network
virtualization technologies (VXLAN/NVGRE) to communicate with another network,
particularly a virtual LAN (VLAN). It offers VXLAN Tunnel End Point (VTEP)
functionality for VXLAN and Network Visualization Edge (NVE) functionality for
NVGRE tunnels on the switch.
Both VXLAN and NVGRE are layer-3, IP-based technologies that prepend an
existing Layer-2 frame with a new IP header, providing layer-3-based tunneling
capabilities for Layer 2-frames. Essentially, it extends a Layer-2 domain across a
Layer-3 boundary.
For the traffic from a VXLAN/NVGRE to use services on physical devices in a distant
network, the traffic must pass through a DCVPN Gateway.
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