Cisco 350 Series Administration Guide

Administration: Stack Management
Unit ID Assignment
121 Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
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Unit ID Assignment
After topology discovery is completed, each unit in a stack is assigned a unique unit ID.
The unit ID is set in the Stack Management page in one of the following ways:
• Automatically (Auto)—The Unit ID is assigned by the topology discovery process.
• Manually—The unit ID is manually set to an integer from 1-maximum number of
units in a stack.
Duplicate Unit IDs
If you assign the same unit ID to two separate units, only one of them can join the stack with
that unit ID.
If auto numbering has been selected, the duplicate unit is assigned a new unit number. If auto
numbering was not selected, the duplicate unit is shut down.
The following shows a case where two units manually assigned the same unit ID. Unit 1 does
not join the stack and is shut down. It did not win the master selection process between the
master-enabled units (1 or 2).
Duplicate Unit Shut Down

Cisco 350 Series Specifications

General

Model	Cisco 350 Series
Category	Switch
Ports	8, 24, 48
PoE	Available on some models
Layer	Layer 2
Switching Capacity	Up to 104 Gbps
VLAN Support	Yes (up to 256 VLANs)
QoS	Yes
Management	Web, CLI, SNMP
Security Features	ACLs, 802.1X, Port Security
Jumbo Frame Support	Yes
Power Supply	Internal
Dimensions	Varies by model
Weight	Varies by model
Operating Temperature	0°C to 45°C (32°F to 113°F)
Storage Temperature	-20°C to 70°C (-4°F to 158°F)
Humidity	10% to 90% non-condensing
Port Type	Gigabit Ethernet, Fast Ethernet (depending on model)