04-14-2015 01:24 AM - edited 03-07-2019 11:31 PM
Hi all,
I want to create a unidirectional Link between two catalyst 4500X.
Switch 1:
interface TenGigabitEthernet1/1
unidirectional receive-only
end
Switch 2:
interface TenGigabitEthernet1/2
unidirectional send-only
end
Problem:
Switch 1 --> Port notconnect
Switch 2 --> Port connected
Do I need to configure any more on the switch 1 te1/1 to bring up the interface?
I have changed the 10G spf+ transceiver + cable --> same problem.
When I use 1G spf transceiver instead of 10G spf+ on the same ports --> no problem (???)
IOS Version: 03.05.00.E
Thanks for your support,
Regards,
Bernhard
04-14-2015 01:32 AM
Hi Bernhard,
Does the port stay up without uni directional configuration?
Also share sh interface <> unidirectional
Thanks,
Madhu
04-14-2015 01:38 AM
Hi Madu
Ports stay up without uni directional config.
Switch1:
Switch1 #sh interfaces te1/1 unidirectional
Unidirectional configuration mode: receive only
CDP neighbour unidirectional configuration mode: send only
Switch1#
Switch 2:
Switch2#sh interfaces te1/2 unidirectional
Unidirectional configuration mode: send only
CDP neighbour unidirectional configuration mode: off
Switch2#
Thanks,
Bernhard
04-14-2015 04:33 AM
Hi,
Can you please share the interface config from both the sides.
Regards,
Madhu
04-14-2015 04:37 AM
Switch 1:
interface TenGigabitEthernet1/1
(no) speed nonegotiate
unidirectional receive-only
end
Switch 2:
interface TenGigabitEthernet1/2
(no) speed nonegotiate
unidirectional send-only
end
04-14-2015 05:32 AM
Ok. Quite not sure but can you hardcode speed and duplex to see if it helps?
Also worth checking on a diffrent port with a differnt SFP/Cable etc.
Thanks,
Madhu
04-14-2015 05:35 AM
I can't hardcode speed and duplex on a port with 10Ge sfp+ transceiver.
On different ports same problem (1GE sfp works, 10GE sfp+ doesn't works)
Thanks,
Bernhard
04-14-2015 01:46 AM
Hi Bernhard.
What are the results of the follwing command on both switches:-
show interface ten 1/1 unidirectional
&
show interface ten 1/2 unidirectional
Regards
Alex
04-14-2015 01:49 AM
Hi Alex
Switch1:
Switch1 #sh interfaces te1/1 unidirectional
Unidirectional configuration mode: receive only
CDP neighbour unidirectional configuration mode: send only
Switch1#
Switch 2:
Switch2#sh interfaces te1/2 unidirectional
Unidirectional configuration mode: send only
CDP neighbour unidirectional configuration mode: off
Switch2#
Regards,
Bernhard
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