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20 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES
Console Port The console port allows you to connect a terminal and perform remote or
local out-of-band management. The console port uses a standard null
modem cable and is set to auto-baud (up to a maximum of 19200 baud),
8 data bits, no parity and 1 stop bit.
Expansion Module
Slot
You can use this slot to install an Expansion Module. Contact your
supplier for further information on the range of Expansion Modules
supported by your Switch.
WARNING:
When an Expansion Module is not installed, ensure the
blanking plate is fitted by tightening all screws with a suitable tool.
Default Settings Table 5 shows the default settings for the Switches. If you initialize one of
the Switch units, it is returned to these defaults.
Table 5 Default Setting
Feature Switch 4900 Series
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
Link Aggregation Control
Protocol (LACP)
Enabled
Smart Auto-sensing Switch 4900, 4924, and 4950: Enabled
Switch 4900 SX: Not applicable
IP Address 169.254.100.100
*
* This default IP address is used if the unit is operating in standalone mode, and/or no other
Switches on the network have this IP address. If this default IP address is already in use then the
Switch detects this and configures itself with an IP address in the range 169.254.1.0 to
169.254.254.255.
Subnet Mask 255.255.0.0