[ANCP] RE: Layer 2 Parameters in the Protocol document

["Sanjay Wadhwa" <swadhwa at juniper.net>]

Hi Menachem

   The ACI sent in L2C has the same format as what is sent by the DSLAM in DHCP opt 82 or PPPoE-IA tag i.e. VLAN tag is part of the ACI. For each VLAN on a local-loop this translates to a unique ACI.

Access-loop-remote-id is an operator configured value for a given subscriber on the local-loop. The exact DSLAM behaviour is outside the scope of the draft. However, I would assume if there are multiple VLANs to the customer premise (one per subscriber), then  the relay-agent should insert a different access-remote-id per subscriber. It is an optional TLV.. However, when present it will be unique to the subscriber.

Access-Aggregation-IDs are optional TLVs. These can be used to define DSLAM uplink attributes if needed.

 

-Sanjay

 

>         Regarding the document: 
>   "draft-wadhwa-gsmp-l2control-configuration" and following the questions I 
>   raised at the meeting in Montreal, 
>  I would like to request an explanation of how to handle: 
>   
>
>         1. 
>    Multiple Vlans in a single encapsulation. 
>         2.  Multiple Vlans and 
>   Multiple encapsulations. 
>
>
>
>         1. Multiple Vlans in a single 
>   encapsulation. 
>
>     
>                a. Should an 
>   Access-Loop-Circuit-Id be defined for each Vlan which means that this is a 
>   many-to-one relationship? 
>   
>                  b. Should there be more 
>   than one Access-Loop-Remote-Id's or is one sufficient? If more are needed, how 
>   are they associated with an 
>   
>                     
>    Access-Loop-Circuit-Id? 
>   
>                  c. Should there be an 
>   Access-Aggregation-Circuit-Id-Binary and Access-Aggregation-Circuit-Id-ASCII 
>   for each 
>  Access-Loop-Circuit-Id 
>   defined? 
>         
>                    d. I assume 
>   there are only one set of "DSL Line Attributes" defined which are common to 
>   the physical line. 
>
>     
>              2. Multiple Vlans and Multiple 
>   encapsulations. 
>       
>             a.  If the Vlan's are related to 
>   different "Access Loop Encapsulations" how is this association between Vlan 
>   and encapsulation shown? 
>     
>       
>
> Best Regards, 
>   
> Menachem
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