Trunk between 4800G and 4500G goes down

[ducheus]

When I try to setup a trunk with aggregation between a 4500G and 4800G, the trunk goes down. Below are the configuration of both switches.

4500G

inter bridge aggregation 1

link-aggregation mode dynamic

description trunk 4500-4800

interface giga 1/0/49

port link-aggregation group 1

port link-type trunk

port trunk permit vlan all

interface giga 1/0/50

port link-aggregation group 1

port link-type trunk

port trunk permit vlan all

4800G

link-aggregation load-sharing mode destination-mac source-mac

inter bridge aggregation 2

description trunk 4800-4500

interface giga 1/0/49

port link-aggregation group 2

port link-type trunk

port trunk permit vlan all

interface giga 2/0/49

port link-aggregation group 2

port link-type trunk

port trunk permit vlan all

 I modified the 4800 configuration of the bridge to dynamic mode without success...

Any suggestion will be welcome

Regards, Hector

[manuel.bitzi · Accepted solution]

hi ducheus

You have to configure the trunk on the bridge-aggregation. Else there is a missmatch between the bridge interface and the physical interface and the bridge will not come up.

and sync the LACP-mode. remove or add the dynamic on both switches. 

br

Manuel

[ducheus]

Problem solved! Thanks a lot.