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Hi James, See embedded answer. Regards, Moti From: James Huang
[mailto:James.huang at huawei.com] Hi, Moti, Do you mean we should specify which lower-layer entity should be
used to transmit ANCP message by using ancpAnSessionConfigRelatedEntity? If yes, then what is the difference between
ancpAnSessionConfigRelatedInterface and
ancpAnSessionConfigRelatedEntity, as shown below? I think they both specify an
interface in case of Ethernet, it is duplicated. [MM] Please look into RFC4188 (BRIDGE-MIB) where we have a very similar
issue. In case the bridge port is associated with an ifIndex then dot1dBasePortIfIndex
is enough but if not then dot1dBasePortCircuit is required. In our case, if the
ancpAnSessionConfigRelatedInterface then the other objects can be left unused. However,
sometimes you need to specify also the S-VLAN ID.
…… (taken from
draft-ietf-ancp-mib-an-04 )
ancpAnSessionConfigRelatedInterface InterfaceIndex,
ancpAnSessionConfigRelatedEntity
RowPointer,
ancpAnSessionConfigSvid
VlanIdOrNone,
…… BTW, when creating an ANCP session, we need to specify the IP
addr of the ANCP server ? BRAS; that would be sufficient; what is the point to
specify the lower-layer entity? The AN should choose the lower-layer entity
itself. Thanks! Best Regards James 发件人: Moti Morgenstern
[mailto:Moti.Morgenstern at ecitele.com] 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 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 |