CISCO Catalyst 2955 WS-C2955T-12 10/100Mbps + 1000Mbps Switch 12 x 10/100 ports 2 x 10/100/1000BASE-T ports 8000 MAC Address Table 8 MB memory architecture shared by all ports Up to 32 MB SDRAM and 16 MB Flash memory Buffer Memory

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12 x 10/100 ports
2 x 10/100/1000BASE-T ports
8000 MAC Address Table
8 MB memory architecture shared by all ports
Up to 32 MB SDRAM and 16 MB Flash memory Buffer Memory

Learn more about the Cisco Systems, Inc. WS-C2955T-12

Model

Brand: CISCO

Series: Catalyst 2955

Model: WS-C2955T-12

Spec

Standards: IEEE 802.1x support
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP)
IEEE 802.3x full duplex on 10BASE-T, 100BASE-TX, and 1000BASE-T ports
IEEE 802.1D Spanning-Tree Protocol
IEEE 802.1p CoS prioritization
IEEE 802.1Q VLAN
IEEE 802.3 10BASE-T specification
IEEE 802.3u 100BASE-TX specification
IEEE 802.3ab 1000BASE-T specification
IEEE 802.3ad Link Aggregation Control Protocol (LACP)
IEEE 802.3ah Ethernet in the First Mile (EFM)
RMON I and II standards
SNMPv1, SNMPv2c, and SNMPv3

Ports: 12 x 10/100 ports
2 x 10/100/1000BASE-T ports

Speed: 10/100Mbps + 1000Mbps

MAC Address Table: 8000

Buffer Memory: 8 MB memory architecture shared by all ports
Up to 32 MB SDRAM and 16 MB Flash memory

Security: Filtering of incoming traffic flows based on Layer 2, Layer 3, or Layer 4 ACPs prevents unauthorized data flows
Private VLAN edge provides security and isolation between ports on a switch, ensuring that voice traffic travels directly from its entry point to the aggregation device through a virtual path and cannot be directed to a different port.
Support for the 802.1x standard allows users to be authenticated, regardless of which LAN port they are accessing, and provides unique benefits to customers who have a large base of mobile (wireless) users accessing the network.
802.1x with VLAN assignment allows a dynamic VLAN assignment for a specific user, regardless of where the user is connected.
802.1x with voice VLAN gives an IP phone access to the voice VLAN, regardless of the authorized or unauthorized state of the port.
802.1x with port security authenticates the port and manages network access for all MAC addresses, including the clients'.
SSH and SNMPv3 provide network security by encrypting administrator traffic during Telnet and SNMP sessions.
Port security secures the access to a port based on the MAC address of a user's device. The aging feature removes the MAC address from the switch after a specific timeframe to allow another device to connect to the same port.
MAC address notification allows administrators to be notified of new users added or removed from the network.
Spanning-tree root guard (STRG) prevents edge devices not in the network administrator's control from becoming Spanning-Tree Protocol root nodes.
The Spanning-Tree Protocol PortFast/bridge protocol data unit (BPDU) guard feature disables access ports with Spanning-Tree Protocol PortFast enabled upon reception of a BPDU, and increases network reliability, manageability, and security.
Multilevel console access security prevents unauthorized users from altering the switch configuration.

Cabling: 10BASE-T/100BASE-TX ports: RJ-45 connectors; four-pair Category 5 UTP cabling
1000BASE-T ports: RJ-45 connectors; four-pair Category 5 UTP cabling
100BASE-FX ports: MT-RJ connectors; 50/125 or 62.5/125 micron multimode fiber-optic cabling
100BASE-LX ports: LC connectors; 50/125 or 62.5/125 micron single-mode fiber-optic cabling
Management console port: 8-pin RJ-45 connector, RJ-45-to-RJ-45 rollover cable with RJ-45-to-DB9 adapter for PC connections; for terminal connections, use RJ-45-to-DB25 female data-terminal-equipment (DTE) adapter (can be ordered separately from Cisco, part number ACS-DSBUASYN=)

LEDs: Per-port status LEDs: Link integrity, disabled, activity, and indications
Dual-power-supply indicators
Major and minor alarm-relay indicators

VLAN Support: Yes

Power: External 24V (dual-redundant DC input, screw-down connectors)
Power consumption: 23W maximum, 78.53 BTU/hour
18V minimum; 32V maximum

Dimensions: 8.1" x 5.0" x 3.8"

Weight: 3.0 lbs.

Humidity: 10 to 95% (noncondensing)

Features

Features: Superior redundancy for fault backup
Integrated CISCO IOS Software features for bandwidth optimization
QoS Classification Support at Ingress
QoS metering/policing at ingress
QoS marking at ingress
QoS scheduling support at egress
Sophisticated traffic management