Etherchannel one way-link question

From: Mujica, Raul - (Per) (raul.mujica@attla.com)
Date: Sat Nov 29 2003 - 03:42:16 GMT-3

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Hi:
I have a pair of questions:

1.- Is UDLD the only choice to manage one-way links ?

2.- When I configure UDLP and PAGP (mode desirable on both sides) on the
interfaces to form an etherchanel, this is flapping, has someone
experienced this ?

interface range FastEthernet0/23-24
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 10,20,30
 switchport mode trunk
 no ip address
 udld enable
 channel-group 1 mode desirable

But when I use "mode on" and UDLD, the port-group goes up without problem
and get stable.

interface range FastEthernet0/23-24
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 10,20,30
 switchport mode trunk
 no ip address
 udld enable
 channel-group 1 mode on

Regards
Raul

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