User manual

VOLKTEK NSH-5509 MANAGED 8-PORT 10/100 + 1-PORT 100-FX SWITCH

5 Enhanced Features

5.1 Xpress Ring

Xpress Ring is a VOLKTEK proprietary ring protocol that enables networks to recover

from link failure within 50ms. To enable Xpress Ring, it needs some network

configuration: the user must assign two ring ports for each Switch in the ring. The user

must also assign the Arbiter Switch which will decide if it is necessary to activate the

backup path. For Xpress Ring, any switch can be the arbiter – just remember that the

Arbiter Switch must be part of the ring.

Apart from rerouting the transmission within 50ms, the Arbiter Switch will also issue an

alarm when a link failure occurs. The user will then be informed of the failure and will be

able to fix the problem and reconfigure if required.

Xpress Ring is the fastest ring recovery technology and is ideal for networks where the

ring topology is not changed very often.

For configuration of Xpress Rings, please refer to the appropriate chapter in this manual.