Having some issues with a very simple Lab scenario between an EX2200-C and a Cat 3560. Both devices are basically in default configuration. The Juniper has the configuration listed below and the topology is listed below that (RIP mobile users). My issue is that when I have the Catalyst with no LAG/Etherchannel configuration I end up getting a Layer 2 loop. It seems that the member interfaces on the Juniper are still forwarding traffic even though the Aggregated interface is down. I'm used to seeing the Cisco devices put the interfaces into an individual state and keep them running in STP to prevent loops.
Is this behavior normal?
Notes 1: This is a lab test environment
Notes 2: You shouldn't have one end not configured for LAG but this is a test to see what happens in that case
Spanning tree interface parameters for instance 0 Interface Port ID Designated Designated Port State Role port ID bridge ID Cost ge-0/1/1.0 128:562 128:562 32768.3c61046021c1 20000 FWD DESG {master:0}
root# show interfaces ge-0/0/0 ether-options { speed { 100m; } 802.3ad ae0; } root# show interfaces ge-0/0/01 ether-options { speed { 100m; } 802.3ad ae0; } root# show interfaces ae0 description "Link to DSW1"; aggregated-ether-options { lacp { active; } } unit 0 { family ethernet-switching; }
LAG +--+ | | +---------------------------------------------+ |---------------------------------------------| || | | || || +--+ || || || ge-0/0/1||ge-0/0/1 ||f0/1 +--------------+ +--------------+ | | | | | EX-2200C |ge-0/1/1 g0/1| c3560 | | +-------------------------+ | | | | | +--------------+ +--------------+
No comments:
Post a Comment