Re: view OID mask?

Dave Shield£º

	

======= 2006-09-20 16:50:44 =======

>The idea of the "ifRow4" view is to match any OID of the form
>    .1.3.6.1.2.1.2.2.1.x.4
>(ignoring the column subidentifier) i.e. the row with index '4'.
>
>Setting this against a bit pattern of the relevant subidentifiers gives:
>
>    .1.3.6.1.2.1.2.2.1.0.4
>     1 1 1 1 1 1 1 1 1 0 1 0 0 0 0 0   = 0xff:a0
>
>So the second octet of the mask is 0xa0
for the sub-identifier ifTable.1,   i think we can set the corresponding mask bit to 1(exact match)
or 0(wildcard), cause it's the only mib node for administrative purpose under ifTable.

so i get 0xff:a0 or 0xff:20
1 1 1 1 1 1 1 1 1 0 1 0 0 0 0 0   = 0xff:a0
1 1 1 1 1 1 1 1 0 0 1 0 0 0 0 0   = 0xff:20

= = = = = = = = = = = = = = = = = = = =

¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡	Leo Lei
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡	2006-09-20

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