Tuesday, August 25, 2009

Is it in Autonomous or Lightweight mode?

A quick 'show version' will indicate if the Cisco Wireless Access Point is in Autonomous or Lightweight mode:

cisco AIR-LAP1131AG-N-K9 (PowerPCElvis) processor (revision A0) with 24566K/8192K bytes of memory.
Processor board ID FTX1217N0DF
PowerPCElvis CPU at 262Mhz, revision number 0x0950
Last reset from power-on
LWAPP image version 5.1.151.0
1 FastEthernet interface
2 802.11 Radio(s)

Another give away is that you can not enter 'config t' mode on when in Lightweight mode.

Monday, August 10, 2009

Port Spanning on Cisco 2950

An example of a SPAN configuration on a Cisco 2950 Switch is below.

  • Monitor session 1 source interface fastethernet 0/1, 0/2, 0/3
  • Monitor session 1 destination interface fastethernet 0/4 encap ingress vlan 1

The above example mirrors data from ports 0/1, 0/2 and 0/3 to the destination port 0/4 using vlan1 for vlan tagging.


To show the status of a SPAN monitor session use the following command.

  • show monitor session 1

Where 1 is the session number from the above statement.