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Trunk between Cisco 3560 and Juniper ex4200

I need to create a trunk between a Cisco 3560 and a Juniper EX4200

I am perfectly happy with the the Cisco side and want to only allow 1 vlan across the trunk, which I was going to configure on the 3560 side.

Has anyone any experience on trunking to a Juniper Ex4200

Looking at the Juniper side it looks like I just set the port as a L2 uplink.

Thanks

Roger

3 REPLIES

Trunk between Cisco 3560 and Juniper ex4200

Hi Roger,

The below link may help you.
http://kb.juniper.net/InfoCenter/index?page=content&id=KB5506


Please rate the helpfull posts.
Regards,
Naidu.

VIP Super Bronze

Trunk between Cisco 3560 and Juniper ex4200

You can allow certain vlan(s) on the trunk by using the memeber command:

here is the command:

user@switch1> show configuration

interfaces {

ge-0/0/13 {

unit 0 {

family ethernet-switching {

port-mode trunk;

vlan {

members [10 20 30 40];

HTH

Hall of Fame Super Silver

Re: Trunk between Cisco 3560 and Juniper ex4200

Hello Roger,

EX-4200 are multi layer switches. The most important difference is that Vlans/broadcast domains have names and need to be associated to an 802.1Q Vlan-id.

the following commands can be of help

ex-4200> configure

ex-4200# set vlans INTER-SWITCH vlan-id 100

ex-4200# set interface ge-0/0/0 unit 0 family ethernet-switching port-mode trunk

ex-4200# set interface ge-0/0/0 unit 0 family ethernet-switching vlan members INTER-SWITCH

ex-4200#commit

ex-4200#exit

the default is that no vlans are allowed on the trunk on the EX-4200. multilple Vlans can be permitted by using the last command that refers to the vlan object name and not the to the 802.1Q vlan-id

commit is required to apply the change in junos

Hope to help

Giuseppe

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