Yes, enabling "feature udld" globally enabled is it on all fibre ports, including twinax links.  You can then selectively disable it on a per-link basis, or enable aggressive mode globally or on a per-link basis.  See below:
N7K1-1# config t
Enter configuration commands, one per line.  End with CNTL/Z.
N7K1-1(config)# feature udld
2013 Mar  5 19:47:51 N7K1-1 %UDLD-5-UDLD_ENABLED: UDLD Enabled
N7K1-1(config)# end
N7K1-1# 2013 Mar  5 19:47:52 N7K1-1 %VSHD-5-VSHD_SYSLOG_CONFIG_I: Configured from vty by brian on 192.168.0.249_at_pts/0
N7K1-1# show udld neighbor
Port             Device Name    Device ID   Port ID         Neighbor State
--------------------------------------------------------------------------
Ethernet2/1      TBM14311481    1           Ethernet2/1     bidirectional   
Ethernet2/2      TBM14311481    1           Ethernet2/2     bidirectional   
N7K1-1# show udld ethernet 2/1
Interface Ethernet2/1
--------------------------------
Port enable administrative configuration setting: device-default
Port enable operational state: enabled
Current bidirectional state: bidirectional
Current operational state:  advertisement - Single neighbor detected
Message interval: 7
Timeout interval: 5
        Entry 1
        ----------------
        Expiration time: 43
        Cache Device index: 1
        Current neighbor state: bidirectional
        Device ID: TBM14311481
        Port ID: Ethernet2/1
        Neighbor echo 1 devices: JAF1510CMLQ
        Neighbor echo 1 port: Ethernet2/1
        Message interval: 15
        Timeout interval: 5
        CDP Device name: N7K2-1(TBM14311481)
        Last pkt send on: 710196, Mar  5 19:48:18 2013
                Probe pkt send on: 710196, Mar  5 19:48:18 2013
                Echo  pkt send on: 638708, Mar  5 19:47:55 2013
                Flush pkt send on: None.
        Last pkt recv on: 739220, Mar  5 19:48:18 2013
                Probe pkt recv on: 739220, Mar  5 19:48:18 2013
                Echo  pkt recv on: 659850, Mar  5 19:47:55 2013
                Flush pkt recv on: None.
        Deep pkt inspections done: None.
        Mismatched if index found: None.
        Deep pkt inspection drops: None.
(Member of port-channel1)
HTH,
Brian McGahan, CCIE #8593 (R&S/SP/Security), CCDE #2013::13
bmcgahan_at_INE.com
Internetwork Expert, Inc.
http://www.INE.com
-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Naufal Jamal
Sent: Tuesday, March 05, 2013 3:33 AM
To: ccielab_at_groupstudy.com
Subject: UDLD in nexus
Hello folks,
In nexus 7K, if i enable feature udld globally would it enable udld normal mode across all fiber ports automatically? i think yes.
can
anyone please confirm?
Naufal
Blogs and organic groups at http://www.ccie.net
Received on Tue Mar 05 2013 - 13:17:47 ART
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