Hello VPP experts: I have question about the behavior of ip4(6)-glean nodes. In particular, I'm noticing the node is dropping the original packet that triggered glean process. The VPP I'm running is 18.07 with DPDK 18.02.
I'm using VPP as a simple forwarding application where final destination's MAC address is not known to VPP at the beginning. I'm sending IPv4 packet using scapy and for the 1st packet VPP receives, I see VPP redirects this packet to ip4-glean node where it will send an ARP request to learn forwarding destination's MAC address. However, it appears the ip4-glean node will also drop my original packet that triggered this process. Is this an expected behavior? If I keep deleting the arp entry of my final destination IP in VPP repeatedly (not that a normal application would keep doing this, but just for experiment), I see no packets reaching my final destination. In general, is there some notion of "pending" packets in VPP? Like taking a packet out of current input vector and process such packet later, without blocking next input vectors getting generated? Thanks a lot, -Ray
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#10710): https://lists.fd.io/g/vpp-dev/message/10710 Mute This Topic: https://lists.fd.io/mt/26380933/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
