Capwap Mailing List: The introduction of 01 version of MIB draft

[ff richard_fy (fy.richard]

Before publishing 01 version of MIB draft prepared by David and me (Shi yang), I would like introduce some major changes of it compared with 00 version.

The main change of 01 version:

1)      Rename "WTP radio template" with "WTP virtual radio".

An important objective for MIB draft is to reuse IEEE 802.11 MIB and future IEEE 802.11 standards. Otherwise, it will be impossible to make IETF CAPWAP to work

 well with IEEE 802.11 MIB standards. Without reusing, the only thing we could do is to keep modifying CAPWAP and 802.11 binding MIB to support new 802.11 standards.

The problem is current IEEE 802.11 MIB is easy to be used by FAT AP, while it will have trouble for Fit AP. A major reason for this trouble is most tables in IEEE 802.11 MIB are indexed by ifIndex (It could responding to a radio interface). According to CAPWAP idea, user should prepare radio configuration before WTP connect to AC. At the time, there is no any radio info.

In the 00 version, it bring forward a idea of "WTP radio template". Before WTP connect to AC, administrator will create a "WTP radio template" interface, under it, administrator could set parameter for a radio. By this way, this virtual radio interface will establish mapping relationship with PHY radio of a WTP. Through this " ifIndex", CAPWAP will be able to easily reuse current and future 802.11 MIB standards. In another word, CAPWAP MIB will establish a bridge between CAPWAP MIB and IEEE 802.11 MIB.

But in the 00 version, considering the name of "WTP radio template" is not very meaningful, so it will be replaced by new name of "WTP virtual radio" interface. The basic design idea of 00 version is still followed by 01 version.

 

2)      Add an example section

Some guy in the mailing list asked me some issues of 00 version. I found the reason of their doubt is on account of no example to explain how MIB is used.

So an entire example is added for CAPWAP MIB and 802.11 binding MIB. With it, it will explain how interface MIB, CAPWAP MIB, IEEE 802.11 MIB will be used together

Wish it will make it easy to understand by this way.

 

3)  Update some table design

My next mail will discuss it. Kindly refer to it.

 

Regards

 

Richard (Shi yang)