User guide

September 2009
OmniSwitch 6400/6850/6855/9000/9000E------ Release 6.4.2.R01 Page 13 of 79
Ethernet Ring Protection (ERP) – Overlapping Protected VLANs on a
Single Node
In a network where all connected nodes cannot belong to a single ERP ring, the OmniSwitch supports
multiple ERP rings. Each of the ERP rings has a different Service VLAN configured which allows the
ERP PDUs to be processed by the corresponding ERP ring nodes. The Service VLANs configured for
each of the ERP rings can be configured as a protected VLAN on the other ERP ring. The protected
VLANS can be shared across ERP rings.
Ethernet-services - Egress rate limiting
This feature allows for egress rate limiting for traffic going out on UNI ports. When a SAP is
configured and bound to a SAP profile, the following information is used to provide egress rate
limiting on traffic going out on the UNI port
• Destination port = UNI port defined in the sap
• VLAN = CVLAN defined in the sap (could be untagged, cvlan all or specific vlan id)
• Rate limiter with the sap-profile egress-bandwidth
This feature does not support egress-rate limiting on IPMVLAN.
Ethernet Services - Tunneling L2 Protocols
Enhances the User Network Interface (UNI) profile to allow the control packets for 802.1x, 802.1ab,
802.3ad, 802.3ah, GVRP, and AMAP to be tunneled, discarded, or peered on UNI ports.
Note: 802.3ad and 802.3ah packets use the same MAC address. Therefore, the configuration for
802.3ad also applies to 802.3ah control packets.
IGMP Relay - Relay IGMP Packets to Specific Host
Encapsulates IGMP packets in an IP packet to the specified multicast server. This immediately notifies
the multicast server to forward a new multicast stream when a subscriber has joined the new group
without relying on the L3 multicast network (e.g. PIM) to propagate this event.
IPMVLAN Group Address and Mask
Enhances the IPMVLAN Group configuration to allow a mask to be specified.
Multiprotocol Label Switching (MPLS)
Multiprotocol Label Switching (MPLS) is a label switching technology that provides the ability to set
up connection-oriented paths over a connectionless IP network. MPLS sets up a specific path for a
sequence of packets. The packets are identified by a label inserted into each packet.
This implementation of MPLS provides the network architecture that is needed to set up a Virtual
Private LAN Service (VPLS). VPLS allows multiple customer sites to transparently connect through a
single bridging domain over an IP/MPLS-based network.
The MPLS architecture provided is based on the Label Distribution Protocol (LDP). The LDP consists
of a set of procedures used by participating Label Switching Routers (LSRs) to define Label Switched