بسم الله والحمد لله والصلاة والسلام علي رسول الله وآله وصحبه وإخوانه وسلم
Switch port is Trunk and Access in the same time
this happened when i was configuring a 2960 PoE-8 switch.
the concept here is that the port will be trunk if the opposite port in the other switch is trunk and vice versa. in other words it will be access if the other port is access.
this depends on the DTP default mode in the switches for example , the 3550 Switch ports defaults to dynamic-desirable , while on the 3560 Switch ports its default to Dynamic-auto.
also it depends on the version of the IOS
The "older" switches wanted to form trunks, hence the dynamic desirable was the default.Newer switches are a tad more conservative, so the dynamic auto is now the default.
Best Regards
Ahmed Mustafa
ولا تنسوني والمسلمين من صالح الدعاء
وصلي الله وسلم وبارك علي النبي وآله وصحبه وإخوانه وسلم
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