The VPLS service with dot1-range SAPs use svc-sap-type of dot1q-range and supports limited functionality in comparison to a normal VPLS service, The following paragraph provide more details of the feature functionality, configuration guidelines and restrictions:
The user can define access dot1q range SAPs, which specifies a group of VLANs which receive similar service treatment, that is, forwarding behavior, SAP ingress QoS treatment and SAP (behavior like that available in Epipe service) and allows it to be configured in a VPLS service:
On the node, where the service originates, in addition to the access dot1q range SAP, the service should be configured with Q1.* SAPs on the two G.8032 ring ports. The access or access-uplink Q1.*SAPs can be used, but the access-uplink SAPs are recommended for use.The user cannot configure any other SAPs in the same VPLS service.
There is no special configuration required on intermediate nodes, that is, the ring nodes which do not terminate or originate the service. The nodes should be configured for providing transit VPLS service and the VPLS service must use the same G.8032 instance for protection as is used by the service on originating and terminating node.
The Epipe service on 7210, currently does not check if the inner tag received on a Q1.* SAP is within the range of the configured VLANs. VPLS service too has the same behavior.
Support for SAP Ingress QoS, Ingress and Egress ACLs, accounting, and other services, for dot1q range SAP configured in a VPLS service matches the support available in Epipe service.
G.8032 mechanism is used for loop detection in ring network and service protection. A separate VPLS service representing the G.8032 control instance must be configured and the state should be associated with this service:
Use of dot1q range SAPs to provide service on the interconnection node, in a G.8032 major-ring/sub-ring deployment, when using the virtual channel, is not supported. This restriction is not applicable when the interconnection node in a G.8032 major-ring/sub-ring is configured without a virtual channel.
mVPLS/xSTP support is available for use with Q1.* SAP on the ring ports to break the loop. This is a add-on to the G.8032 support.
Broadcast, Unknown Unicast and Multicast (BUM) traffic is flooded in the service.
Learning is enabled on the service by default, to avoid the need to flood the service traffic out of one of the ring ports, after network MAC addresses are learnt. The user has an option to disable learning per service. Learning enable/disable per SAP is not supported.
MAC limiting is available per service. MAC limiting per SAP is not supported.
CFM OAM is supported. The support for UP MEPs on the dot1q range SAP in the service to be used for fault management and performance management using the CFM/Y.1731 OAM tools is available:
On 7210 SAS-D and 7210 SAS-Dxp, only UP MEP is allowed to be configured only on the dot1q VLAN range SAPs. CFM/Y.1731 tools can be used for trouble shooting and performance measurements. User must pick a VLAN value from the range of VLANs configured for the dot1-range SAP using the config>eth-cfm>domain>association>bridge-identifier VLAN command and enable the use of using the CLI command primary-vlan-enable under the MEP CLI context. It is used as the VLAN tag in the packet header for all the CFM/Y.1731 messages sent out in the context of the UP MEP. This is not supported on 7210 SAS-K 2F1C2T and 7210 SAS-K 2F6C4T.
Down MEPs and MIPs are not allowed to be configured.
Fault propagation is not supported with UP MEPs for dot1q range SAP in access-uplink mode.
CFM support is not available for SAPs on the ring ports.
IGMP snooping and MVR is not supported.