LACP trunk does not carry accross VLANS ?

[marka01]

Hi,

so I have 2x : hp 2530 J9772A switch with a basic setup:

vlan 1
name "Default"
no untagged 3
untagged 1-2,5-46,49-52,Trk2
ip address 10.5.1.9 255.255.255.0
exit

vlan 20
name "WLAN"
untagged 3
tagged Trk2
no ip address
exit
spanning-tree Trk2 priority 4

Trunk ports between switches 47,48.

When I use "trunk 47,48 trk2 LACP" VLAN 20 does not assign DHCP from untagged port 3. When I use "trunk 47,48 trk2 trunk" all works.

So does LACP not carrying over VLANS or am I missing something ?

[tejene_bhandari]

which VLAN you want to tag ?

for example if you want to tag vlan 10 , VLAN 20, VLAN 30

you need to configure as below

# int trk2

# tagged vlan 10

#tagged vlan 20

# tagged vlan 30

# write mem

if you want to untagged VLAN 50 you need to do untagged vlan 50

hope it help you

thanks

Tej Bahadur Bhandari

[Vince-Whirlwind]

Do a show interfaces and a show trunk trk2 for either state, and also show us the log.

[marka01]

looks like commands: int trk2 , tagged vlan 20, tagged vlan 10 helped.

Looks like when you are using command 'trunk trk2 trunk' it tags automatically vlans.. but when you use 'trunk trk2 lacp' you have to go into trunk interface and tag it manually (even though it shows trk2 tagged in the config).

[marka01]

By the way does anyone know the real life difference between trunk and trunk lacp ? as I found out both trunk and trunk lacp have redundant ports  (spanning tree) when you enable them. 

[FabianK]

LACP is protocol that manages the link aggregation (trunk). it's an open standard so compatible with every device. it gives you more information and control about the link aggreagtion