Cisco Catalyst 2950 Command Reference

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
OL-10102-01
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
channel-group
channel-group
Use the channel-group interface configuration command to assign an Ethernet interface to an
EtherChannel group and to enable an EtherChannel mode. Use the no form of this command to remove
an Ethernet interface from an EtherChannel group.
channel-group channel-group-number mode {active | {auto [non-silent]} | {desirable
[non-silent]} | on | passive}
no channel-group
PAgP modes:
channel-group channel-group-number mode {{auto [non-silent]} | {desirable [non-silent}}
LACP modes:
channel-group channel-group-number mode {active | passive}
On mode:
channel-group channel-group-number mode on
Syntax Description channel-group-number Specify the channel group number. The range is 1 to 6.
mode Specify the EtherChannel Port Aggregation Protocol (PAgP) or Link
Aggregration Control Protocol (LACP). mode of the interface.
active Unconditionally enable LACP.
Active mode places an interface into a negotiating state in which the
interface initiates negotiations with other interfaces by sending LACP
packets. A channel is formed with another port group in either the active
or passive mode. When active is enabled, silent operation is the default.
auto Enable PAgP only if a PAgP device is detected.
Auto mode places an interface into a passive negotiating state, in which the
interface responds to PAgP packets it receives but does not initiate PAgP
packet negotiation. A channel is formed only with another port group in
desirable mode. When auto is enabled, silent operation is the default.
desirable Unconditionally enable PAgP.
Desirable mode places an interface into a negotiating state in which the
interface initiates negotiations with other interfaces by sending PAgP
packets. A channel is formed with another port group in either the
desirable or auto mode. When desirable is enabled, silent operation is the
default.
non-silent (Optional) Used with the auto or desirable keyword when PAgP traffic is
expected from the other device.

Cisco Catalyst 2950 Specifications

General

Forwarding Bandwidth	8.8 Gbps
Switching Capacity	13.6 Gbps
Forwarding Rate	6.6 Mpps
Weight	3.6 kg
RAM	16 MB
Flash Memory	8 MB
Operating Humidity	10% to 85% non-condensing
Uplink Ports	2 x 10/100/1000Base-T
Dimensions	4.4 cm x 44.5 cm x 24.2 cm
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Quality of Service (QoS), VLAN support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p
Status Indicators	system
Operating Temperature	0 to 45°C
Ports	24 x 10/100 Ethernet ports
MAC Address Table Size	8, 192 entries
Power Supply	Internal 100-240V AC, 50-60Hz