Pseudowire Redundancy Service Models
Page 160 7210 SAS-X, R6 OS Services Guide
VLAN Range for SAPs in an Epipe Service
7210 SAS VLAN ranges provide a mechanism to group a range of VLAN IDs as a single service
entity. This allows the operator to provide the service treatment (forwarding, ACL, QoS,
Accounting, and others) to the group of VLAN IDs as a whole.
NOTE: Grouping a range of VLAN IDs to a SAP is supported only for Virtual Leased Lines
(VLL) Ethernet services.
Processing behavior for SAPs using VLAN ranges in access-uplink mode
The access SAPs that specifies VLAN range values using connection-profile (also known as,
dot1q range SAPs) is allowed in Epipe service and in VPLS service. For more information on
functionality supported, see VLAN Range SAPs feature Support and Restrictions on page 160.
The system allows only one range SAP in an Epipe service. It fails any attempt to configure more
than one range SAP in an Epipe service. Range SAP can be configured only on access ports. The
other endpoint in the Epipe service has to be a “Q.* SAP” in access-uplink mode. The processing
and forwarding behavior for packets received on range SAPs are listed below:
• No VLAN tags are removed/stripped on ingress of access dot1q SAP configured to use
VLAN ranges. A single tag (Q1) is added to the frame when it is forwarded out of the
Q1.* access-uplink SAP.
• When a packet is received on the access-uplink Q1.* SAP, the outermost tag is removed
and the packet is forwarded out of the access dot1q range SAP. The system does not check
if the inner VLAN tag matches the VLANs IDs (both range and individual values
specified in the “connection-profile”) of the dot1q access SAPs configured in the service.
• The dot1q range sap can be supported in a service with svc-sap-type set to ‘dot1q-range’.
VLAN Range SAPs feature Support and Restrictions
• The access SAPs that specifies VLAN range values (using connection-profile) is allowed
only in E-Pipe service. The system allows only one range SAP in an Epipe service. It will
fail any attempt to configure more than one range SAP in an Epipe service. Range SAP
can be configured only on access ports.
• In network mode, the dot1q range sap is allowed to be configured in a service with svc-
sap-type set to ‘any’.
• The access SAPs using VLAN range values are allowed only for Dot1q encapsulation port
or LAG. A connection profile is used to specify either range of VLAN IDs or individual
VLANs to be grouped together in a single SAP.
To Next Page
Loading...
