SRX

Hi all!

I am trying to configure chassis cluster two data links (each link from separate SRX) with an EX switch, using LACP. The config is the following:

SRX-3600 cluster:

root@srx-3600-2# show interfaces reth0       
vlan-tagging;
redundant-ether-options {
    redundancy-group 1;
    lacp {
        passive;
    }
}
unit 352 {
    vlan-id 352;
    family inet {
        address 10.2.0.200/24;
    }
}
unit 353 {
    vlan-id 353;
    family inet {
        address 10.3.0.200/24;
    }
}

{primary:node1}[edit]
root@srx-3600-2#

--------------------------------------------------

EX configuration:

chassis {
    aggregated-devices {
        ethernet {
            device-count 20;
        }
    }
}

root@ex8208# show interfaces ge-4/0/0
ether-options {
    802.3ad ae19;
}

[edit]
root@ex8208# show interfaces ge-4/0/24  
ether-options {
    802.3ad ae19;
}

[edit]
root@ex8208# show interfaces ae19        
aggregated-ether-options {
    lacp {
        active;
    }
}
unit 0 {
    family ethernet-switching {
        port-mode trunk;
        vlan {
            members [ VLAN_352 VLAN_353 ];
        }
    }
}

[edit]
root@ex8208#

Without LACP it works fine, with LACP 1/2 traffic seems to flow normally, the other half does not. What am I missing?

Thanks,

Roberts

Hi

You should use 2 different ae interfaces on your EX switch - e.g. ae18 bundles ports going to node0 and ae19 is for ports going to node1. This is what they recommend.

Perfect, now it works fine!

Accepted solution 🙂