Virtual Private LAN Service258FD 100/320Gbps NT and FX NT IHub Services Guide3HH-11985-AAAA-TQZZA Issue: 135.16.2.14 interfaceTable 137 interface commandParameters table-size — The maximum number of MAC entries in the forwarding database.Values: 1 — 131071Item Description(2 of 2)Item DescriptionSyntax interface ip-int-name [create]no interfaceContext configure>service>vplsDescription This command creates an IP interface on top of a VPLS.The IP interface is created within a VRF instance called vpls-management.This allows to receive/send IP packets (for example, ANCP) over an MPLS pseudowire (thatis, spoke-spd or mesh-sdp).Two types of IP interfaces can be created on top of a VPLS, they are distinguished based ontheir name:1) A normal IP interface: the name of this interface should not start with ANCP2) An ANCP IP interface: the name of this interface must start with ANCPAn ANCP interface has the following syntax: ANCP_X_[Y_]....The X value represents an integer VLAN value (0 ≤ X < 4096) and is mandatory.The Y value represents a integer p-bit value (0 ≤ Y ≤ 7) and is optional. When this value is notspecified or when an invalid value is specified, then the default value of 6 is used.• When sending a packet over a normal IP interface, the packet which is sent over thepseudowire is composed as follows:• sdp binding of type ether: the MPLS L2 payload is untagged• sdp binding of type vlan: the MPLS L2 payload is tagged with the VLAN value specifiedas vlan-vc-tag• When sending a packet over an ANCP IP interface, the packet which is sent over thepseudowire is composed as follows:• sdp binding of type ether: the MPLS L2 payload is VLAN-tagged with value X (of theinterface name) and p-bit Y• sdp binding of type vlan: the MPLS L2 payload is double-tagged with outer VLAN valueX, inner VLAN value vlan-vc-tag and outer p-bit YRestrictions • On a specific VPLS instance all interfaces have to be of the same type (that is, all ANCPor all normal)• The value X of all the ANCP interfaces must be identical for all VPLS instances.• This kind of IP interface can only be created on top of a VPLS. Not on top of a v-VPLS.• An IP interface can only be created when the VPLS has igmp-snooping disabled.
