Information Technology Reference
In-Depth Information
Step 1
The 11.2(8.2)SA6 version of software was used on the 2900XL for the following tests.
Switch#
show version
Cisco Internetwork Operating System Software
IOS (tm) C2900XL Software (C2900XL-C3H2S-M), Version 11.2(8.2)SA6, MAINTENANCE INTERIM
SOFTWARE
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Wed 23-Jun-99 16:25 by boba
Image text-base: 0x00003000, data-base: 0x00259AEC
ROM: Bootstrap program is C2900XL boot loader
Switch uptime is 1 week, 4 days, 22 hours, 5 minutes
System restarted by power-on
System image file is “flash:c2900XL-c3h2s-mz-112.8.2-SA6.bin”, booted via console
cisco WS-C2924-XL (PowerPC403GA) processor (revision 0x11) with 8192K/1024K bytes of
memory.
Processor board ID 0x0E, with hardware revision 0x01
Last reset from power-on
Processor is running Enterprise Edition Software
Cluster command switch capable
Cluster member switch capable
24 Ethernet/IEEE 802.3 interface(s)
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:50:80:39:EC:40
Motherboard assembly number: 73-3382-04
Power supply part number: 34-0834-01
Motherboard serial number: FAA02499G7X
Model number: WS-C2924-XL-EN
System serial number: FAA0250U03P
Configuration register is 0xF
Step 2
We want the switch to tell us what is happening and when it is happening, so we enter the following
commands:
2900XL(config)#
service timestamps debug uptime
2900XL(config)#
service timestamps log uptime
2900XL#
debug spantree events
Spanning Tree event debugging is on
2900XL#
show debug
General spanning tree:
Spanning Tree event debugging is on
Step 3
Then we shut down the port in question.
2900XL#
conf t
Enter configuration commands, one per line. End with CNTL/Z.
2900XL(config)#
interface fastEthernet 0/1
2900XL(config-if)#
shut
2900XL(config-if)#
00:31:28: ST: sent Topology Change Notice on FastEthernet0/6
00:31:28: ST: FastEthernet0/1 - blocking
00:31:28: %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to
administratively down
00:31:28: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed
state to down
2900XL(config-if)#
exit
2900XL(config)#
exit
2900XL#
