Cisco Catalyst 2950 Command Reference

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
0L-10102-01
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
show spanning-tree
This is an example of output from the show spanning-tree summary command:
Switch> show spanning-tree summary
Switch is in pvst mode
Root bridge for: none
EtherChannel misconfiguration guard is enabled
Extended system ID is enabled
Portfast is disabled by default
PortFast BPDU Guard is disabled by default
Portfast BPDU Filter is disabled by default
Loopguard is disabled by default
UplinkFast is disabled
BackboneFast is disabled
Pathcost method used is short
Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0001 0 0 0 1 1
---------------------- -------- --------- -------- ---------- ----------
1 vlan 0 0 0 1 1
<output truncated>
This is an example of output from the show spanning-tree mst configuration command:
Switch# show spanning-tree mst configuration
Name [region1]
Revision 1
Instance Vlans mapped
-------- ---------------------------------------------------------------------
0 101-4094
1 1-100
-------------------------------------------------------------------------------
This is an example of output from the show spanning-tree mst interface fastethernet0/1 command:
Switch# show spanning-tree mst interface fastethernet0/1
FastEthernet0/1 of MST00 is designated forwarding
Edge port:no (default) port guard :none (default)
Link type:point-to-point (auto) bpdu filter:disable (default)
Boundary :internal bpdu guard :disable (default)
Bpdus sent 84122, received 83933
Instance Role Sts Cost Prio.Nbr Vlans mapped
-------- ---- --- --------- -------- -------------------------------
0 Desg FWD 200000 128.1 101-4094
1 Root FWD 200000 128.1 1-100
This is an example of output from the show spanning-tree mst 0 command:
Switch# show spanning-tree mst 0
###### MST00 vlans mapped: 101-4094
Bridge address 0005.7428.1f40 priority 32768 (32768 sysid 0)
Root address 0001.42e2.cdc6 priority 32768 (32768 sysid 0)
port Fa0/2 path cost 200038
IST master this switch
Operational hello time 2, forward delay 15, max age 20
Configured hello time 2, forward delay 15, max age 20, max hops 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/1 Desg FWD 200000 128.1 P2p
Fa0/2 Root FWD 200000 128.2 P2p Bound(PVST)

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