Re: [Bridge-mib] problems with dot1dStpPortDesignatedPort

Hi Mike,

We depricated dot1dStpPortPathCost for dot1dStpPortPathCost32   I can see
the value of doing a new object dot1dStpPortDesignatedPort.  We don't want
to add new objects if possible, but this does make sense.

What should a conforming application expect from a device implementing the
BRIDGE-MIB when it device has > 255 ports?

K.C.

----- Original Message -----
From: "Michael MacFaden" <mrm@riverstonenet.com>
To: <bridge-mib@ietf.org>
Sent: Thursday, March 28, 2002 5:24 PM
Subject: [Bridge-mib] problems with dot1dStpPortDesignatedPort

| Hi,
|
| In draft-ietf-bridge-bridgemib-smiv2-02.txt,
| the managed object:
|
|     dot1dStpPortDesignatedPort OBJECT-TYPE
|      SYNTAX      OCTET STRING (SIZE (2))
|      MAX-ACCESS  read-only
|      STATUS      current
|      DESCRIPTION
|       "The Port Identifier of
|        the port on the Designated
|        Bridge for this port's segment."
|      REFERENCE "IEEE 802.1D-1990: Section 4.5.5.7"
|     ::= { dot1dStpPortEntry 9 }
|
| has not been updated with text to
| say what one should do if the bridge
| has greater than 255 ports.
|
| I understand 802.1T has modified how these 16 bits are
| being divided up, however I don't think this
| object can be reused and must only report
| on the range it is capable of reporting on.
|
| A new object would have to be added to represent
| the new interpretation of the 16 bits in a port identifer.
|
| Testing with existing fielded products
| has shown that the priority bits often just
| get shifted out which strikes me as rather broken.
|
| So is is possible that some prose be added to
| the front matter about what a conforming application
| should expect from a device implementing the BRIDGE-MIB
| when it device has > 255 ports?
|
| Thanks,
| Mike MacFaden
|
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| Bridge-mib mailing list
| Bridge-mib@ietf.org
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|

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