Initial version of this MIB module.


Phy definition

Throughout this document phy is used as an abbreviation
for Physical Interface.  In particular it refers to a
physical ATM jack on a Catalyst 5000 ATM card.  This card
can be fitted with either one or two physical jacks, only
one of which may be active at any given moment.  The second
phy serves as a redundant connector to the ATM backbone.
Note, however, that for logistical reasons, each phy has
a separate ifIndex.


Support of the phy by ifTable

The dual phy entity on the c5K ATM line card is managed
using the ifTable.  Specific interpretations of ifTable
for the dual phy entity are as follows.

Object   Use for dual phy entity
======   =======================

ifIndex  Each phy entity is represented by an ifEntry.

ifDescr  Description of the phy entity.

ifType   The value for the phy entity is other(1).

ifSpeed  See [1].

ifPhysAddress   An octet string of zero length, per [1].

ifAdminStatus   See [1].

ifOperStatus    See [1].  In addition, note that a phy can
         be in the up state but still not be the
         active phy.  However, the active phy will
         always be up.

ifLastChange    See [1].

ifName   See [1].

ifLinkUpDownTrapEnable     disabled(2).

ifHighSpeed      See [1]. 

ifConnectorPresent	true(1).


References

[1] McCloghrie, K. and F. Kastenholz, Evolution of the
Interfaces Group of MIB-II, RFC 1573, Hughes LAN Systems,
FTP Software, January 1994.