Operating instructions

Chapter 8. Cisco Systems IGESM troubleshooting 213
This shows the configuration running in memory, and the command show startup shows the
configuration as stored in NVRAM. To synchronize the information in show running with the
information in NVRAM (in other words, to save the running config into NVRAM) use write
mem or copy running startup.
show vlan
Verifies that desired VLANs exist. If a VLAN does not exist in here, the switch will not carry
data for that VLAN even if a port is configured to use it.
switch#sh vlan
VLAN Name Status Ports
---- ---------------- --------- -----------------------------
1 default active
2 operational active Gi0/1, Gi0/2, Gi0/3, Gi0/6
Gi0/7, Gi0/8, Gi0/9, Gi0/10
Gi0/11, Gi0/12, Gi0/13, Gi0/14
30 VLAN0030 active Gi0/15
110 VLAN0110 active
...
A port configured for trunk and connected (show int status) will not show up in this list.
show version
sh version shows:
򐂰 The version of code running on the IGESM
򐂰 How long the IGESM has been up (since last boot)
򐂰 The version of code and where it booted from on Flash
򐂰 The base (first and lowest) MAC address (as IGESM uses more than a single MAC)
򐂰 The config reg (normally 0xF for standard boot)
switch#sh version
IOS (tm) CIGESM Software (CIGESM-I6Q4L2-M), Version 12.1(14)AY4, RELEASE SOFTWARE (fc1)
...
switch uptime is 6 days, 54 minutes
System image file is
"flash:/cigesm-i6q4l2-mz.121-14.AY4/cigesm-i6q4l2-mz.121-14.AY4.bin"
...
Base ethernet MAC Address: 00:0F:90:CD:6F:C0
...
Configuration register is 0xF
show tech-support
show tech-support lists off a lot of information useful to support people (as well as some not
as useful).
The output from show tech is long enough that it usually scrolls out of the terminal emulators
buffer. To prevent loss of scrolling data, set your emulator to capture data to a file, prior to
running the command, and then view captured data in the log file.
Items that are currently included in the output of show tech-support:
򐂰 show version
򐂰 show running-config
򐂰 show stacks
򐂰 show interfaces
򐂰 show controllers
򐂰 show file systems