Example 10-6 has the following configuration statement in it: lane client ethernet elan_name. Where is the VLAN reference?
Example 10-6 MPS Subinterface Configuration Example
!Associates MPS with LEC
lane client mpoa server name MPS_Server_name
lane client ethernet elan_name
This is from an MPS configuration that resides on a router. The router does not associate VLANs like a Catalyst does. Only Catalyst client interfaces need a VLAN reference to bridge the VLAN to the ELAN. The router associates only with an ELAN.
The following lines appear in both Example 10-14 and Example 10-15: lane client ethernet 21 elan1 and lane client ethernet 22 elan2. Is there any problem with this? Could they both say ethernet 21? The values 21 and 22 combine those VLAN numbers to the correct ELANs (1 and 2). Both ELANs define different broadcast domains and support different IP subnetworks. Conventionally then, the VLAN numbers differ. However, the two VLAN numbers could be the same because they are isolated by a router. If, however, they were not isolated by a router, the VLAN values could not be the same because they would be bridged together merging the broadcast domains.