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IP175C/IP175C LF/IP175CH/IP175CH LF
Data Sheet
94/111
Mar 09, 2007
Copyright © 2004, IC Plus Corp.
IP175C/IP175CH-DS-R14
PHY
MII
ROM
R/W
Description
Default
30
27.8
5.0
R/W MBSTM DISABLE
Multicast broadcast storm protection disable
1: “Broadcast storm protection” does not include multicast
packets. IP175C/IP175CH drops the packets with DA =
FFFFFFFF only when the broadcast threshold is reached
(default),
0: “Broadcast storm protection” includes multicast packets.
IP175C/IP175CH drops the packets with DA = FFFFFFFFF,
or multi-cast address when the broadcast threshold is
reached.
“Broadcast storm protection” does not drop packets due to not
learned address.
1
30
27.0
81.0
R/W DIFFSEV_EN
1: DiffServ is enabled, 0: Diffserv is disabled (default)
0
30
28
83, 82
R/W DSCP[15:0]
Lookup table for DiffServ
0
30
29
85, 84
R/W DSCP[31:16]
Lookup table for DiffServ
0
30
30
87, 86
R/W DSCP[47:32]
Lookup table for DiffServ
0
30
31
89, 88
R/W DSCP[63:48]
Lookup table for DiffServ
0
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