But the 2590 doesn't seem to have this option. I got the following error message :
_3(config-if)#switchport trunk encapsulation isl
^
% Invalid input detected at '^' marker.
865_3rd_Flr_3(config-if)#switchport trunk ?
allowed Set allowed VLAN...
How can I set ISL for the 2950?
This is the 3550:
8_2>show inter gi0/2
GigabitEthernet0/2 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 0005.dd41.1932 (bia 0005.dd41.1932)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload...
How can I set ISL for the 2950?
This is the 3550:
8_2>show inter gi0/2
GigabitEthernet0/2 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 0005.dd41.1932 (bia 0005.dd41.1932)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload...
Does the trunk encapsulation affect my problem?? The 3550 is set to ISL.
863#show inter giga 0/1 switchport
Name: Gi0/1
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of...
I have the connection light on the ports that connects the switches together. And the cdp is running on the 3550, I can see other devices connecting to it and I also ran show cdp run and it is enabled.
Thanks for your reply
I am trying to connect a new 2950 on the network. I have the gateway , vlan and trunk mode setup I am not able to make it work. When I run the show cdp neigh command on the new (2950) switch I don't see the 3500, and 3500 also doesn't see the 2950. Does it mean that I have bad connection? I have...
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