The application demonstrates the use of the DPDK libraries to implement packet forwarding
with reassembly for IPv4 and IPv6 fragmented packets.
-The initialization and run- time paths are very similar to those of the L2 forwarding application
-(see Chapter 9 "L2 Forwarding Sample Application" for more information).
+The initialization and run- time paths are very similar to those of the :doc:`l2_forward_real_virtual`.
The main difference from the L2 Forwarding sample application is that
it reassembles fragmented IPv4 and IPv6 packets before forwarding.
The maximum allowed size of reassembled packet is 9.5 KB.
.. code-block:: console
- ./build/ip_reassembly -c 0x14 -n 3 -- -p 5
+ ./build/ip_reassembly -l 2,4 -n 3 -- -p 5
EAL: coremask set to 14
EAL: Detected lcore 0 on socket 0
EAL: Detected lcore 1 on socket 1
.. code-block:: console
- ./build/ip_reassembly -c 0x10 -n 3 -- -p 5 -q 2
+ ./build/ip_reassembly -l 4 -n 3 -- -p 5 -q 2
To test the application, flows should be set up in the flow generator that match the values in the
l3fwd_ipv4_route_array and/or l3fwd_ipv6_route_array table.
-----------
The following sections provide some explanation of the sample application code.
-As mentioned in the overview section, the initialization and run-time paths are very similar to those of the L2 forwarding application
-(see Chapter 9 "L2 Forwarding Sample Application" for more information).
+As mentioned in the overview section, the initialization and run-time paths are very similar to those of the :doc:`l2_forward_real_virtual`.
The following sections describe aspects that are specific to the IP reassemble sample application.
IPv4 Fragment Table Initialization
nb_mbuf += RTE_TEST_RX_DESC_DEFAULT + RTE_TEST_TX_DESC_DEFAULT;
nb_mbuf = RTE_MAX(nb_mbuf, (uint32_t)NB_MBUF);
- rte_snprintf(buf, sizeof(buf), "mbuf_pool_%u_%u", lcore, queue);
+ snprintf(buf, sizeof(buf), "mbuf_pool_%u_%u", lcore, queue);
if ((rxq->pool = rte_mempool_create(buf, nb_mbuf, MBUF_SIZE, 0, sizeof(struct rte_pktmbuf_pool_private), rte_pktmbuf_pool_init, NULL,
rte_pktmbuf_init, NULL, socket, MEMPOOL_F_SP_PUT | MEMPOOL_F_SC_GET)) == NULL) {