Configuring the MP endpoint descriptor

This section applies only to the interfaces associated with a VT interface for MP bundling.

In the VT interface approach to MP, an MP endpoint bases its link bundling decisions on the remote endpoint descriptors of links, and assigns the links that receives the same endpoint descriptor to the same bundle. To avoid incorrect link bundling on a VT interface, make sure the link descriptors used by different negotiating devices are unique. For example, you must re-configure an endpoint descriptor if the default endpoint descriptor (device name) cannot uniquely identify the MP bundle at the remote end for the device.

In the MP-group approach to MP, the negotiating endpoints do not base their bundling decisions on the endpoint descriptor. The endpoint descriptors of the interfaces in an MP-group are always the same as the MP-group interface name. The user-configured MP endpoint descriptors cannot take effect.

By default, if the interface is assigned to an MP group by using the ppp mp mp-group command, the endpoint descriptor of the interface is the MP group interface name. If the interface is associated with a VT interface, the endpoint descriptor of the interface is the device name (configured by the sysname command). If the endpoint descriptor exceeds 20 bytes, the first 20 bytes are taken as the endpoint descriptor.

To configure the MP endpoint descriptor of an interface for LCP negotiation: