Hi: I met this problem: ----- TenGigabitEthernet3b/0/1(active) --------------- | port a port c | *VTEP* (vxlan)------- *bridge domain* ------ *BondEthernet0* --- / | switch | \___ TenGigabitEthernet3b/0/0(passive) ---------------| port b port d |
When a *ARP Request* come from *VTEP* and output from TenGigabitEthernet3b/0/1(active) , be transfered to "port A of switch", in switch it will be flooded to "port B/C/D of switch"。 "Port B of switch" will send it back to TenGigabitEthernet3b/0/0(inactive) , then to *BondEthernet0* 。If bond-input do not drop this packet, loopback happen!(MAC address flapping ) In my test, when *ARP Request* loopback from bond's inactive slave interface, the bond-input graph node will put it to L2 bridge(do L2 learn...), then MAC address flapping happen! So the corresponding ARP Reply come from TenGigabitEthernet3b/0/1(active) will be dropped in L2 bridge! So should these packets come from TenGigabitEthernet3b/0/0(passive) be dropped ? or What wrong config did I have? ro .... Please tell me, thanks! I use VPP's stable version 19.08 and do some config like this: 1. I create a bond interface and set bond mode as “active-backup”； 2. I add two phy port in bond as bond’s slavies; 3. I set all of the three interface up; after do these configures, I run " *show bond details* "： vpp# show bond details BondEthernet0 mode: active-backup load balance: active-backup number of active slaves: 2 *TenGigabitEthernet3b/0/1* *TenGigabitEthernet3b/0/0* number of slaves: 2 TenGigabitEthernet3b/0/0 TenGigabitEthernet3b/0/1 device instance: 0 interface id: 0 sw_if_index: 3 hw_if_index: 3 We know that, BondEthernet0's two slaves： TenGigabitEthernet3b/0/1 --- active TenGigabitEthernet3b/0/0 --- passive When I use “trace add dpdk-input 100、show trace” to see how packets be processed. I see the packets which input frome TenGigabitEthernet3b/0/0(passive) still processed by vpp(such as "l2_learn"). Shouldn't these packets just be droped on bond-input graph node? Thanks!
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