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Re: [ANCP] Questions regarding ANCP MIB ancpAnSessionConfigRelatedEntity



Hi James,

 

The ANCP session is always associated with some lower-layer entity, e.g., a virtual bridge port, an ATM VCC, Ethernet interface, etc.

Notice that each one of the “lower-layer” entities listed here has a different identifier-type. The bridge port has a port id, the VCC is identified by (ifIndex, VPI, VCI) and the Ethernet interface has a unique ifIndex value.

So, the value in ancpAnSessionConfigRelatedEntity is the SNMP Object ID that uniquely identifies the associated lower-layer entity.

The format is therefore, as you understand, an index into another SNMP table.

 

Regards,

Moti Morgenstern

From: ancp-bounces at ietf.org [mailto:ancp-bounces at ietf.org] On Behalf Of James Huang
Sent: Thursday, November 12, 2009 8:30 AM
To: ancp at ietf.org
Subject: [ANCP] Questions regarding ANCP MIB ancpAnSessionConfigRelatedEntity

 

Hi, all,

 

I have some questions about the implementation of ANCP MIB item ancpAnSessionConfigRelatedEntity; can anybody give me some idea? Thanks in advance!

 

http://tools.ietf.org/html/draft-ietf-ancp-mib-an-04

 

 ancpAnSessionConfigRelatedEntity OBJECT-TYPE

       SYNTAX      RowPointer

       MAX-ACCESS  read-create

       STATUS      current

       DESCRIPTION

             "This object contains the name of an object instance

              uniquely identifying a lower layer entity associated

              with this session.  For example, in the case where

              the session is associated with an ATM VCC, this object

              might be set to an object identifier uniquely identifying

              that VCC (e.g., an object instance in atmVclTable).

              If unused, this object MUST have the value zeroDotZero.

              The value of this object is persistent."

       DEFVAL { zeroDotZero }

       ::= { ancpAnSessionConfigEntry 16 }

 

Question:

1.  “a lower layer entity associated with this session”

What is the association between a lower layer entity and an ANCP session? Is it associated with partition id?

What is the application scenario for this?

 

2.  what is the format of the name/identifier

"Access-Node-Identifier atm slot/port:vpi.vci", which is defined in TR-101, or an index, i.e. an index of the atmVclTable?

 

Best Regards

James