SCTP Administrator's Guide

Table 1-1 SCTP Parameters Supported by the ndd Command (continued)
DescriptionParameter
Specifies the Partial Delivery threshold . It is a
percentage and must be in the range 0 to 100. If the
receive window advertised to the peer is less than
or equal to this percentage, then partial delivery is
enabled and the user receives fragments of
messages. Partial delivery enables you to free the
buffers, so that the receive window can be opened.
This is useful when the reassembled data is larger
than the receive window.
sctp_pd_threshold
Specifies the size of the hash tables used for
quick-lookup using verification tags and port
numbers. If the size of the hash table is large, it is
faster and the probability of the different
associations using the same hash location is
reduced. However, large tables require more
memory. If the sctp_hash_size is a prime number,
then the probability of different hash locations being
used increases.
sctp_hash_size
Provides an option to negotiate the Partial Reliability
(PR)_SCTP with the peer. The default value is YES.
sctp_pr_sctp
Provides an option to negotiate the Explicit
Congestion Notification (ECN) with the peer. It also
specifies if ECN NONCES s used (if value is 'nonce').
sctp_ecn
Table 1-2 lists the minimum, maximum, and default values for each of the SCTP
parameters supported by the ndd command.
Table 1-2 Minimum, Maximum, and Default Values of SCTP Parameters Supported by
the ndd Command
DefaultMaximumMinimumParameter
842949672950sctp_max_init_retr
1042949672950sctp_max_assoc_retr
542949672950sctp_max_path_retr
6553542949672951sctp_a_rwnd
32655351sctp_max_out_streams
2655351sctp_default_out_streams
32655351sctp_max_in_streams
100042949672951sctp_rto_min
6000042949672951sctp_rto_max
22 Introduction