Paradyne 8820 Evolution of the Interfaces Group of MIB-II RFC, 4.1 “ifNumber” Object interfaces

1. Network Management Specification

Therefore this object will be set to the value of 127.

4.Evolution of the Interfaces Group of MIB-II (RFC 2863)

The interfaces group consists of an object indicating the number of interfaces supported by the unit and an interface table containing an entry for each interface in the GranDSLAM 3.0. Since RFC 2863 is an SNMPv2 MIB it will be converted to SNMPv1 for support by the GranDSLAM 3.0. There will be entries for WAN interfaces, ATM cell interfaces, an AAL5 interface, management interfaces and DSL interfaces.

4.1“ifNumber” Object (interfaces 1)

ifNumber will be supported as specified in the Evolution MIB and will specify the number of rows in the ifTable for this particular device.

4.1.1“ifIndex” Object (ifEntry 1)

This object provides the index into the ifTable and typically into tables in other MIBs also. A unique value, greater than zero, for each interface or interface sublayer in the managed system. It is recommended that values be assigned contiguously starting from 1. The value for each interface sublayer must remain constant at least from one re-initialization of the entity’s network management system to the next re-initialization.

4.1.1.1ifIndex scheme

This section introduces the ifIndex scheme to be used in the GranDSLAM 3.0 product. It describes the interfaces to be managed as specified in the system requirements along with their corresponding ifIndex assigned. The assignment of the values to the ifIndex in the product is static and maintained across power cycles and software upgrades. The first column in Table 1-6, GranDSLAM 3.0 Interface List, is the Interface description. The second column corresponds to the layer in the stack where this interface fits (It does not necessary match the layer in the OSI model). The third column is the number of this interface supported in the current software release. The forth column is the maximum number of this interface that is envisioned in this product. The fifth column is the name associated with that instance of the interface.

The ‘x’ suffix in some ifName values corresponds to the interface/port number within the same chassis.

18 June 2003 8000-A2-GB30-00