
UDLD and Protected Link Groups
● Supported UDLD and protected link group features..................................................... 121
● UDLD overview............................................................................................................. 121
● Protected link groups.................................................................................................... 127
Supported UDLD and protected link group features
Lists UDLD and protected link group features.
The following table lists the individual Brocade FastIron switches and the Uni-Directional Link Detection
(UDLD) and protected link group features they support. These features are supported in the Layer 2
and Layer 3 software images, except where explicitly noted.
Feature ICX 6430 ICX 6450 FCX ICX 6610 ICX 6650 FSX 800 FSX
1600
ICX 7750
Unidirectional Link Detection (UDLD)
(Link keepalive)
08.0.01 08.0.01 08.0.01 08.0.01 08.0.01 08.0.01 08.0.10
UDLD on tagged ports 08.0.01 08.0.01 08.0.01 08.0.01 08.0.01 08.0.01 08.0.10
Protected link groups 08.0.01 08.0.01 08.0.01 08.0.01 08.0.01 08.0.01 No
Designated protect 08.0.01 08.0.01 08.0.01 08.0.01 08.0.01 08.0.01 08.0.10
UDLD overview
Uni-Directional Link Detection (UDLD) monitors a link between two Brocade devices and brings the
ports on both ends of the link down if the link goes down at any point between the two devices. This
feature is useful for links that are individual ports and for trunk links. The following figure shows an
example.
FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide
121
53-1003086-04
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