3Com 3CRWX120695A WXR100, 3CRWXR10095A manual How Switch Replacement Works, Enabling

Replacing a Switch and Reusing its Configuration 343

How Switch

Replacement Works

1A network administrator enables the Auto-Config IP Subnet Matching option in 3WXM. (This option is on the 3WXM Services Setup dialog.)

2Someone at the remote office physically unplugs the failed switch and plugs in a new, unconfigured switch or a pre-staged switch.

3The person at the remote office powers on the new switch.

If the switch is a WXR100, the person at the remote office also inserts a paperclip or similar object into the WXR100’s Fn hole to press the Fn switch. Normally, the Fn LED (the right LED above port 1) remains solidly lit for 3 seconds after power on. However, when the Fn switch is pressed, the LED flashes for 3 seconds instead.

4The new switch requests a configuration from 3WXM, using the process described in “Drop Ship (WXR100 Only)” on page 332 or “Staged WX” on page 334. (The process depends on whether the switch is a WXR100 or is any model that has been prestaged.)

53WXM finds a switch configuration that matches the model and MSS version and has a management interface in the same subnet as the new switch.

3WXM also notices that the serial number of the new switch does not match the serial number in the switch configuration in 3WXM. However, because the Auto-Config IP Subnet Matching option is enabled, 3WXM does not reject the configuration request.

Enabling	This configuration task is performed by the network administrator using
Replacement of	3WXM.
Remote Switches	To enable replacement of remote switches

1Open the network plan that contains the remote switches you want to allow to be replaced.

2Select Tools > 3WXM Services Setup from the toolbar in the main 3WXM window.

3On the Service Settings tab, select Auto-Config IP Subnet Matching.

4Click Save.