failover batched dhcpbndupd
Nancy Griffeth
ndgriffeth at comcast.net
Fri Aug 11 11:12:06 UTC 2006
hi, pearl,
Doesn't the draft say that it MAY send batched updates?
Or is it really just that it MAY accept batched update?
nancy
PEARL ABOTSI wrote:
> Hi,
> I am using dhcp-3.0.4b2 and I would like to know
> whether dhcpd can accept batched bndupdates from a
> failover partner. I have looked at the servers using
> ethereal and I only see bndupdate messages containing
> a single update. It does say in failover draft#7 that
> failover servers MAY accept batched bndupdates so I
> was just wondering if dhcpd accepts them. I looked in
> failover.c and there is a comment that says accept an
> option only once.
>
> ****failover.c****
> /* Only accept an option once. */
> if (link -> imsg -> options_present &
> ft_options [option_code].bit) {
> log_error ("FAILOVER: duplicate option
> %s",
> ft_options
> [option_code].name);
> return ISC_R_PROTOCOLERROR;
> }
>
> ******failover draft#7******
> Multiple binding update transactions MAY be batched
> together in one
> BNDUPD protocol message with the data sets for the
> individual tran-
> sactions delimited by the assigned-IP-address
> option, which MUST appear first in the option set for
> each transaction. Ordering of
> options between the assigned-IP-address options is
> not significant.
> This is illustrated in the following schematic
> representation:
>
> Non-IP Address/Non-client specific options
> first
> assigned-IP-address option for the first IP
> address
> Options pertaining to first address,
> including
> at least the binding-status option and
> others as
> required.
> assigned-IP-address option for the second IP
> address
> Options pertaining to second address,
> including
> at least the binding-status option and
> others as
> required.
>
>
> -Thanks.
>
>
>
>
>
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--
Nancy Griffeth
Professor
Lehman College, The City University of New York
email: ndgriffeth at comcast.net
web: http://comet.lehman.cuny.edu/griffeth/
tel: 718-960-8787
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