Cisco SGE2000 - Cisco - Gigabit Switch Administration Guide

Configuring Spanning Tree
Defining Multiple Spanning Tree
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- Listening — Indicates that the port is in Listening mode. The port cannot
forward traffic nor can it learn MAC addresses.
- Learning — Indicates that the port is in Learning mode. The port cannot
forward traffic, however it can learn new MAC addresses.
- Forwarding — Indicates that the port is in Forwarding mode. The port
can forward traffic and learn new MAC addresses.
• Designated Cost — Indicates that the default path cost is assigned according
to the method selected on the Spanning Tree Global Settings page.
• Designated Bridge ID — Indicates the bridge ID number that connects the link
or shared LAN to the root.
• Designated Port ID — Indicates the Port ID number on the designated bridge
that connects the link or the shared LAN to the root.
• Remain Hops — Indicates the hops remaining to the next destination.
STEP 3 Define the relevant fields.
STEP 4 Click Apply. The device is updated.

Cisco SGE2000 - Cisco - Gigabit Switch Specifications

General

Form Factor	Rack-mountable
Switching Capacity	48 Gbps
Forwarding Rate	35.7 Mpps
Layer	Layer 2
Power Supply	Internal
Management	Web-based, SNMP, CLI
MAC Address Table Size	8000 entries
VLANs	256
Features	Quality of Service (QoS), IGMP snooping, Port mirroring
Dimensions (W x D x H)	440 x 257 x 44 mm (17.3 x 10.1 x 1.73 in)
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-20 to 70°C (-4 to 158°F)
Relative Humidity	10% to 90% non-condensing
Standards Compliance	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3x