18
C
HAPTER
1: I
NTRODUCING
THE
S
UPER
S
TACK
3 S
WITCH
3870
Some combinations of stacked 24 and 48 port units restrict the number
of modules supported by the stack.
Table 5
shows which stack
configurations restrict the number of supported modules:
Table 5
Maximum Stack Configurations
Default Settings
Table 6
shows the default settings for the Switch 3870. If you initialize
one of the Switch units, it is returned to these defaults.
Table 6
Default Settings
Type of Unit
Total Units in the Stack
Maximum Modules
48 Port
24 Port
0
8
8
8
8
0
8
0
7
1
8
2
7
0
7
4
6
2
8
4
6
1
7
6
6
0
6
6
Feature
Switch 3870
Port Status
Enabled
Port Speed
Auto-negotiated
Duplex Mode
Auto-negotiated
Flow Control
Auto-negotiated
Broadcast Storm Control
Enabled
High threshold: 3000 broadcast frames per
second — Notify and filter
Low threshold: 1500 broadcast frames per
second — Notify and unfilter
Virtual LANs (VLANs)
All ports belong to the untagged Default VLAN
(VLAN 1)
Multicast Filtering
IGMP filtering enabled
Rapid Spanning Tree Protocol
Enabled
DUA1745-0AAA02.book Page 18 Monday, August 9, 2004 11:51 AM
Summary of Contents for SUPERSTACK 3 3870 Series
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